移动应用开发 Jobs

Mobile App Development is the creation and development of phones, tablets, personal digital assistants, and other devices that have operating systems. It involves creating software applications for the devices, such as games, utilities, and sometimes even simple to-do lists. These applications are created using programming languages such as HTML5 and JavaScript, which allow developers to create a good user interface. Mobile App Development requires both specific and hard skills from developers, from debugging existing applications to creating entirely new ones.

A great benefit of having a Mobile App Developer on your side is the knowledge and experience they can provide to make your business grow. In addition to creating mobile apps that are good for the user experience, Mobile App Developers can help you with backing up the data from your application securely, modifying an existing app to meet new requirements, troubleshooting any current issues in your application, setting up a server for your application and so much more.

Here's some projects that our expert Mobile App Developer made real:

  • Cloud hosting setup and maintenance
  • Bug fixing/troubleshooting
  • Integrating SDKs based on customer needs
  • Development of features tailored to client specifications
  • Optimizations of service performance
  • Modifying designs to meet customer preferences

We have passionate professional freelancers skilled in the art of Mobile App Development who can work with businesses of any size to develop their ideal mobile applications. Our team has made things possible that many thought impossible by creating usable customer experiences with Mobility Solutions Services like periodic maintenance checks and make upgrades as technology advances without compromising customer data. We also provide support throughout development iterations as needed.

We can help make your vision a reality with affordable solutions for all your mobile needs! Hire a Mobile App Developer in Freelancer.com who will help you from concept through completion on any project related to mobile app development. Our experts are capable of handling difficult tasks such as debugging existing applications and properly integrating third party services into applications with utmost efficiency. Get ahead of your competitors with Mobile App Development from Freelancer.com today!

从382,846个评价中,客户给我们的 Mobile App Developers 打了4.9,共5星。
雇佣 Mobile App Developers

Mobile App Development is the creation and development of phones, tablets, personal digital assistants, and other devices that have operating systems. It involves creating software applications for the devices, such as games, utilities, and sometimes even simple to-do lists. These applications are created using programming languages such as HTML5 and JavaScript, which allow developers to create a good user interface. Mobile App Development requires both specific and hard skills from developers, from debugging existing applications to creating entirely new ones.

A great benefit of having a Mobile App Developer on your side is the knowledge and experience they can provide to make your business grow. In addition to creating mobile apps that are good for the user experience, Mobile App Developers can help you with backing up the data from your application securely, modifying an existing app to meet new requirements, troubleshooting any current issues in your application, setting up a server for your application and so much more.

Here's some projects that our expert Mobile App Developer made real:

  • Cloud hosting setup and maintenance
  • Bug fixing/troubleshooting
  • Integrating SDKs based on customer needs
  • Development of features tailored to client specifications
  • Optimizations of service performance
  • Modifying designs to meet customer preferences

We have passionate professional freelancers skilled in the art of Mobile App Development who can work with businesses of any size to develop their ideal mobile applications. Our team has made things possible that many thought impossible by creating usable customer experiences with Mobility Solutions Services like periodic maintenance checks and make upgrades as technology advances without compromising customer data. We also provide support throughout development iterations as needed.

We can help make your vision a reality with affordable solutions for all your mobile needs! Hire a Mobile App Developer in Freelancer.com who will help you from concept through completion on any project related to mobile app development. Our experts are capable of handling difficult tasks such as debugging existing applications and properly integrating third party services into applications with utmost efficiency. Get ahead of your competitors with Mobile App Development from Freelancer.com today!

从382,846个评价中,客户给我们的 Mobile App Developers 打了4.9,共5星。
雇佣 Mobile App Developers

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    519 找到工作

    我已有一款 App,现需要一次到位的技术升级: • 先对现有全栈代码进行全面审查与优化,重点是性能、结构清晰度和可维护性——包括前端界面逻辑与后端接口、数据库调用。 • 接着替换 UI,目标风格是“简约现代”。请在保持品牌识别度的同时,提供干净的布局、统一的色调与清晰的层级关系,可用 Figma、Sketch 或同等级工具交付源文件。 • 最后把应用打包为跨平台版本,确保 iOS 与 Android 均能顺利安装与运行;需要完整的 IPA、APK、签名说明和一套可复现的打包脚本。 交付成果: 1. 优化后的前端与后端代码库 2. 全新简约现代 UI 设计稿及可编辑源文件 3. iOS、Android 安装包及对应签名/配置文件 4. 一份简明的构建与部署文档(含依赖、脚本与常见错误排查) 5.更换注册验证码采用邮箱注册 完成后,我将进行功能与性能验证,只要代码结构清晰、界面契合简约现代风格,并且两端安装包可直接上线,即视为交付成功。

    $110 Average bid
    $110 平均报价
    8 个竞标
    AI Crypto Signing Agent XMTP
    6 天 left
    已验证

    Pryzen Messaging & Agent System Pryzen features a unified messaging system designed to combine real-time social interaction with a wallet-native intelligent agent, purpose-built for Web3 sports betting and prediction markets. The system delivers a familiar chat experience inside the app while enabling secure, decentralized communication tied directly to users’ wallets. Core Principles Single chat experience for users Social + system messages in one interface Wallet-based identity, not phone numbers or emails Secure, end-to-end encrypted communication Scalable and future-proof for AI agents How It Works Users authenticate with Pryzen and automatically receive a Web3 wallet managed by Privy. This wallet becomes the user’s identity for messaging, notifications, and a...

    $489 Average bid
    $489 平均报价
    21 个竞标

    We are looking for an experienced developer or team to build a custom ERP web application with full mobile access and PDF invoice generation. Required Features Customer management (create, update, customer-wise history) Inventory & stock management Stock update and availability tracking Invoice creation with PDF download Invoice history and search Business reports: Stock report Total business report Customer-wise report Currency: Oman Riyal (OMR) Tax: 5% VAT Invoice option: With VAT Without VAT Mobile access (mobile-responsive / PWA / Android app support) Secure admin login and user roles

    $665 Average bid
    $665 平均报价
    52 个竞标

    I need to get into a mobile phone of my GF, noting the device is not in reach!!! To know what's going on or to be clear on this thing! There is a specific way known,, by sending a modified pic or a link etc can do it!! So need support and services in this regard!

    $64 Average bid
    $64 平均报价
    23 个竞标

    I’m looking for someone based in Kollam, Kerala who can jump straight into an existing React web application and keep the momentum going. The core codebase is already live, but new screens, tweaks to component logic, and a round of performance fixes are pending. You’ll be working directly with me; I’ll walk you through the current repository, explain the backlog in Git, and hand over access to our staging server so you can ship updates quickly. Because the project is already in production, I need clean, modular code, familiarity with modern React hooks, and an eye for maintaining consistency with our current styling approach (we’re on CSS-in-JS). A solid grasp of RESTful APIs and version control in Git is a must, as those are central to the workflow here. Delivera...

    $71 Average bid
    $71 平均报价
    9 个竞标

    We are looking to build a modern, scalable mobile and web application that combines Android, iOS, and Web platforms with a robust Node.js backend and AI-powered features. The product will allow users to sign up, manage their profiles, interact with intelligent features (AI-based recommendations/automation), and access the platform via mobile apps (Android & iOS) as well as a responsive web dashboard. The backend will be built using Node.js, while the frontend will use React.js for the web and modern frameworks for mobile development. Python-based AI services will be integrated to provide smart automation and insights. This project is intended as a long-term product, not a quick MVP, so code quality, scalability, security, and clean architecture are essential. Core Features: - User ...

    $207 Average bid
    $207 平均报价
    25 个竞标
    Tron Coin with Staking
    6 天 left
    已验证

    I’m creating a virtual coin on the Tron blockchain and need a complete, production-ready solution. The core token must follow the TRC-20 standard so users can send and receive it as easily as any other TRX-based asset. Beyond basic transactions, the coin will reward long-term holders through an on-chain staking mechanism that automatically calculates and distributes rewards. To make adoption painless, I also want a clean, responsive web interface. Holders should be able to connect with common wallets such as TronLink, view balances, start or stop staking, and track their accrued rewards in real time. Deliverables I’m expecting: • Audited TRC-20 smart contract with integrated staking logic • Front-end web dashboard (React or similar) that connects via TronWeb ...

    $531 Average bid
    $531 平均报价
    28 个竞标
    Publish App Via Your Consoles
    6 天 left
    已验证

    I need a freelancer who already holds active Google Play Console and Apple App Store Connect accounts to get our production-ready app live right away. The Android and iOS builds are finished and signed, and all store assets—icons, screenshots, feature graphics, descriptions, privacy policy URLs—are zipped and waiting. Here’s the workflow I have in mind: • You upload the binaries, complete the store listings, clear any compliance checks, and push the releases to public status under your own developer profiles. • Once my Apple D-U-N-S is approved and my own consoles are activated, you’ll initiate the official app transfer on both storefronts so that the package names, bundle IDs, ratings, and review histories remain intact. For a smooth hand-off I&rsqu...

    $28 Average bid
    $28 平均报价
    4 个竞标

    I need an Android educational app deployed in kiosk mode onto device for a prototype. The app features an AI assistant that responds to voice commands with a graphic interactive face. Key Requirements: - App to be set up in kiosk mode - Back end suggestion and gemini api integration. Ideal Skills: - Experience with Android kiosk mode - Background in educational app development - Proficiency in integrating AI voice command functionalities

    $118 Average bid
    $118 平均报价
    26 个竞标

    We are seeking an experienced React Native (Expo) developer to assist in implementing Bill of Lading (BOL) data flows and user interface within our dedicated driver mobile application. The ideal candidate will have a strong background in mobile app development and a keen eye for user experience. You will work closely with our design and product teams to ensure a seamless integration of BOL functionalities. If you are passionate about creating efficient and user-friendly mobile applications, we would love to hear from you! Relevant Skills: - React Native (Expo) - Mobile App Development - UI/UX Design Principles - RESTful API Integration - Version Control (Git) - JavaScript - Android - iOS

    $7 / hr Average bid
    $7 / hr 平均报价
    75 个竞标

    Saya sedang mempersiapkan ekspansi layanan digital khusus top up game online dan ingin memastikan proses pembelian menjadi semudah mungkin bagi pengguna. Target utamanya adalah membuat akses yang lebih praktis sehingga transaksi harian meningkat secara signifikan. Ruang lingkup yang saya butuhkan mencakup: • Riset cepat ekosistem top up game di Indonesia—mulai dari metode pembayaran, API publisher, hingga pola perilaku gamer. • Rancangan arsitektur sistem yang memusatkan alur top up dalam satu dashboard, lengkap dengan integrasi API pembayaran (e-wallet, virtual account, QRIS) dan API game populer. • Peta user-flow yang meminimalkan langkah pembelian; contoh wireframe sederhana yang menyoroti kemudahan checkout. • Strategi peningkatan konversi harian—...

    $18 / hr Average bid
    $18 / hr 平均报价
    3 个竞标

    Saya sedang mempersiapkan ekspansi layanan digital khusus top up game online dan ingin memastikan proses pembelian menjadi semudah mungkin bagi pengguna. Target utamanya adalah membuat akses yang lebih praktis sehingga transaksi harian meningkat secara signifikan. Ruang lingkup yang saya butuhkan mencakup: • Riset cepat ekosistem top up game di Indonesia—mulai dari metode pembayaran, API publisher, hingga pola perilaku gamer. • Rancangan arsitektur sistem yang memusatkan alur top up dalam satu dashboard, lengkap dengan integrasi API pembayaran (e-wallet, virtual account, QRIS) dan API game populer. • Peta user-flow yang meminimalkan langkah pembelian; contoh wireframe sederhana yang menyoroti kemudahan checkout. • Strategi peningkatan konversi harian—...

    $17 / hr Average bid
    $17 / hr 平均报价
    2 个竞标

    I have a complete .NET MAUI app built in Visual Studio 2022 (Windows). I need someone with a real Mac to handle the entire Apple side and get it submitted for review. This app has already been successfully published on windows store and android. I have setup an apple developer account in my company name. I have paid the annual fee. I have setup a Bundle identifier which is What you will do: 1. Receive my full solution as a .zip (clean project, no signing keys set yet) 2. Create App ID, Apple Development + Distribution certificates, and provisioning profile in my Apple Developer account 3. Open the project on your Mac (Visual Studio for Mac or Xcode is fine) 4. Archive the app for Release → iOS device 5. Sign the .ipa correctly 6. Upload the .ipa to my App Store Co...

    $128 Average bid
    $128 平均报价
    48 个竞标
    Suit Inventory Tracking App
    6 天 left
    已验证

    I run a suit manufacturing business that still relies on paper logs and spreadsheets to follow stock levels. I need a developer to create a straightforward inventory-tracking mobile app that my employees can use on the factory floor and in our warehouse. The goal is to record every movement of fabric, trims, and finished suits in one place so I always know what we have on hand without chasing multiple people for updates. Core scope • Build an intuitive app where employees can quickly add, edit, and view stock entries. • Provide a simple dashboard that shows current quantities at a glance and flags low-stock items. • Allow multiple employee logins with basic role control so only authorised staff can adjust figures. • Keep the interface clean and fast since man...

    $137 Average bid
    $137 平均报价
    30 个竞标

    I’m looking for someone who can make my digital life feel like one continuous workspace. I have two Windows-based computers and a mix of Android and iOS mobile devices, and I want them all to stay in step—documents, photos, contacts, calendars, browser data, the lot. Here’s what I need: • A reliable cloud-backed solution that keeps files and folders up to date across the Windows PCs, an Android phone, and iOS devices without me having to think about it. • Unified contact and calendar syncing so changes made on any device are reflected everywhere. • Consistent browser experience (passwords, bookmarks, open tabs) between the Windows machines and both mobile platforms. • Guidance on pushing notifications—texts, calls, app alerts—to ...

    $21 / hr Average bid
    $21 / hr 平均报价
    33 个竞标

    Job Description We are opening a UK offshore company for a scalable mobile application that will initially operate in Lebanon, with strong potential for regional and international expansion. We are looking for a professional connector / consultant / business introducer who can bring a serious investor quickly. The investor can be Lebanese or foreign, nationality does not matter. This is a time-critical engagement. We are running out of time and are obligated to move forward within the next 30 hours, which requires securing the full amount urgently. This is time-sensitive: 24 hours to introduce a qualified investor Up to 24 additional hours to secure the deal Funding Details - Required investment: USD $15,000 - Funds will be used strictly for banking and legal matters for the applic...

    $3479 Average bid
    $3479 平均报价
    26 个竞标

    I need a Windows desktop application (WinForms-style UI) that imports inspection photos from a connected Android or iPhone. Step 1 — Select photos * User chooses a date range (From/To). * When a phone is connected and the user clicks a Populate button, the app shows photo thumbnails taken within the chosen date range. * Each photo has a checkbox so the user can select/deselect files to import. * User clicks Next. Step 2 — Rename + resize * The app shows thumbnails only for the photos selected in Step 1. * The filename shown must exclude the file extension (e.g., displays as IMG1236). * Clicking a filename once should select the entire filename text. * Pressing Tab should move to the next filename and select the entire text (fast keyboard renaming). * User can set a proportio...

    $471 Average bid
    $471 平均报价
    110 个竞标

    Project Description: We are OPS-OES, a Thailand-based inspection and oilfield services company. We have achieved PTTEP Qualification as a Lifting Equipment Certifying Authority, and and IADC certified Rig Inspection Training Course and we need to upgrade our existing website to reflect our status as a premier technical authority in the region and the Middle East. Our core services include Rig Acceptance, Commissioning, NDT, and specialized inspections (API standards). We are looking for a developer/designer who can transform our current site into a professional, mobile-responsive B2B platform that balances technical depth with a clean, modern aesthetic. Also require a page demonstrating our association with Ergon () Key Objectives: Authority-Driven Design: Professional UI/UX that emphas...

    $1134 Average bid
    加精
    $1134 平均报价
    65 个竞标

    Saya ingin membangun sebuah aplikasi bisnis Android yang membantu tim kami bekerja lebih giat dan terorganisir. Fokusnya adalah: • Fitur utama — pencatatan tugas, pengingat berkala, dan dasbor ringkas untuk memantau kinerja harian. • Platform — khusus Android, dikembangkan dengan Kotlin atau Java menggunakan arsitektur modern (mis. MVVM, Room, Retrofit). • Backend — solusi ringan cukup memakai Firebase / REST API; saya terbuka pada saran Anda asalkan data tersinkron secara real-time. • Antarmuka — bersih, intuitif, dan siap dipakai oleh pengguna non-teknis. Hasil akhir yang saya butuhkan: 1. APK siap uji di perangkat Android 10+. 2. Kode sumber lengkap beserta instruksi build. 3. Dokumentasi singkat alur fitur utama dan struktur d...

    $500 Average bid
    $500 平均报价
    6 个竞标

    I want a mobile application that centres on horoscope calculation and prediction. The user should enter their birth date, exact time, and location; the app must instantly compute the chart and present accurate daily horoscopes. On top of that core flow, I need personalised predictions that push timely insights to each user based on their unique data. A friendly, modern interface is essential, but the mathematical engine behind it has to be solid—please rely on a proven ephemeris library such as Swiss-Ephemeris, NASA JPL data, or an equivalent you already trust. Native iOS and Android builds are welcome, though a high-performance cross-platform framework like Flutter or React Native is perfectly fine if it keeps the experience smooth. For future-proofing, the code should be clean, w...

    $345 Average bid
    $345 平均报价
    34 个竞标

    Saya ingin dibuatkan sebuah game puzzle sederhana untuk platform mobile. Fokusnya adalah hiburan ringan—alur permainan harus cepat dipahami, dengan tingkat kesulitan yang meningkat secara bertahap agar pemain tertantang namun tetap santai. Lingkup kerja: • Rancang konsep inti dan mekanik puzzle yang orisinal namun mudah dimainkan. • Bangun prototipe fungsional untuk Android (lebih baik jika juga siap di-port ke iOS). • Sediakan antarmuka pengguna yang bersih dan intuitif, cukup layar menu utama, pilihan level, serta layar kemenangan/kekalahan. • Sertakan audio dasar (musik latar singkat dan efek suara sederhana). • Kirimkan file APK untuk uji coba, plus kode sumber terstruktur. Teknologi bebas—Unity, Godot, atau engine mobile ringan lain diper...

    $583 Average bid
    $583 平均报价
    3 个竞标
    Riding app like uber
    6 天 left
    已验证

    Overview I’m launching a ride-hailing app (Uber-style) focused on London. This is an MVP, not a massive rebuild of Uber. I am looking for an experienced mobile app developer or small team who has already built ride-hailing / taxi / delivery apps (or very similar). Scope of Work (MVP) Rider App (iOS + Android) - User registration & login - Book a ride (pickup & drop-off) - Real-time driver tracking (GPS) - Fare estimate - Payment integration (Stripe / cash option) - Trip history - Ratings Driver App (iOS + Android) - Driver registration & profile - Accept / reject ride requests - Live navigation (Google Maps) - Earnings summary - Trip history - Ratings Admin Panel (Web) - Manage riders & drivers - View trips & earnings - Set commission / subscription pricing - Basi...

    $3990 Average bid
    $3990 平均报价
    76 个竞标

    I’m commissioning a full, production-ready ride-sharing solution that covers both sides of the marketplace. The scope spans native iOS and Android rider apps, a mirror set of driver apps, plus the server stack that powers real-time matching, payments, and dashboards. Core workflow • Riders open the app, watch nearby drivers update live on a map, request a trip, and pay securely with a credit or debit card. • Drivers toggle their availability, receive requests, navigate via in-app GPS, then review completed trips and earnings. • The backend matches riders to drivers instantly, calculates distance-based fares, and settles transactions to the appropriate accounts. Key components to build • Two mobile apps (Swift/SwiftUI for iOS, Kotlin/Jetpack for Android) ...

    $6924 Average bid
    $6924 平均报价
    78 个竞标

    I am initiating a long-term, full-scale project to build a smart restaurant application that will operate natively on both iOS and Android. The goal is to create a production-ready platform—not a quick MVP—that can scale and evolve over several phases. This venture is structured as a technical partnership with an Arabic software company that already has an in-house team and a verifiable track record in mobile product delivery. No individual contractors or intermediaries will be considered. Scope at a glance • Collaborative product strategy and roadmap definition • UI/UX design that meets modern Arabic and international usability standards • Native or high-performance cross-platform development for iOS and Android • QA, staging, deployment, and on...

    $795 Average bid
    $795 平均报价
    77 个竞标

    1. Objective Develop a mandatory weekly vehicle checklist system fully operated via WhatsApp, with automated reminders, photo validation, cloud storage, and Excel tracking. Drivers must complete the checklist every Friday. The checklist is not considered completed until: All questionnaire fields are answered All required photos are uploaded The system validates everything 2. Input data (Excel – provided by client) An Excel file will be provided as the source of truth for vehicles and drivers. Sheet: VEHICLES_MASTER Each row = one vehicle Mandatory columns: VEHICLE_PLATE VEHICLE_TYPE → TRUCK or VAN DRIVER_NAME DRIVER_PHONE (WhatsApp number, international format) INTERNAL_ID (optional) DELEGATION (optional) This file determines: Who receives the WhatsApp messages...

    $147 Average bid
    $147 平均报价
    60 个竞标
    FUNCTIONAL SPECIFICATION
    6 天 left
    已验证

    FUNCTIONAL SPECIFICATION WhatsApp-Based Machine Photos & Document Management System Global Objective Use WhatsApp as the single input channel to automatically manage: General machine photos Machine identification plates Logistics documents (Delivery Notes / CMR / Transport Docs) Each image type must follow a separate, independent workflow, without mixing logic or data. FLOW 1 — GENERAL MACHINE PHOTOS Input Photos of machines sent via WhatsApp: Front, side, wheels, basket, display, etc. These images are not identification plates and not documents. System Logic The system must automatically detect a machine number visible in the image (painted number, sticker, marking). Example: 248 This detected number is used as the machine identifier. Cloud Storage If the folder d...

    $189 Average bid
    $189 平均报价
    90 个竞标

    Quero lançar uma pequena rede social voltada exclusivamente para lazer. O objetivo inicial é bem enxuto: disponibilizar um espaço onde os usuários possam trocar mensagens diretas em tempo real, de forma simples e intuitiva, tanto no desktop quanto no mobile. Escopo que preciso neste primeiro momento: • Tela de cadastro/login com autenticação básica (e-mail ou telefone). • Lista de contatos adicionados e busca simples de usuários. • Janela de chat bilateral com histórico armazenado em banco de dados. • Notificações de novas mensagens (push ou web). • Painel administrativo mínimo para moderação e métricas essenciais. Tecnologias ficam a seu critério, cont...

    $500 Average bid
    $500 平均报价
    64 个竞标

    PROJECT: AI-POWERED CONVERSATIONAL DOCUMENT CLOUD ACCESSIBLE VIA WHATSAPP 1. Overview The project consists of creating an intelligent document cloud, accessible primarily through WhatsApp, where users can ask anything related to the company (machines, documentation, spare parts, regulations, internal data, etc.), and the AI automatically returns the correct information, either as a text response or by delivering the exact PDF document required. This is not a traditional app and not a simple chatbot. It is the living memory of the company, organized in the cloud and accessed conversationally. 2. Entry Point: WhatsApp WhatsApp is the only access channel. The phone number identifies the user. There are no usernames or passwords. The system automatically recognizes: The phone number T...

    $630 Average bid
    保密协议
    $630 平均报价
    173 个竞标

    I need an Android and Mac app for a small restaurant that doesn't take reservations. The main purpose of the app is online ordering. Key Features: - Online ordering functionality - Detailed menu item descriptions (yes for all items) - Payment options to be discussed (credit/debit cards, digital wallets, cash on delivery) Ideal Skills & Experience: - Experience in mobile app development for Android - Experience in Mac app development - Strong UI/UX design skills to create an intuitive and attractive interface - Experience integrating secure payment gateways - Ability to provide detailed item descriptions Please submit a portfolio with relevant experience.

    $292 Average bid
    $292 平均报价
    100 个竞标

    I need an experienced app developer to create a horoscope reading app. The app will focus on predicting difficult periods, with an emphasis on health issues and life-threatening risks. Key Features: - Monthly horoscope predictions - Highlight difficult periods, focusing on health issues and life-threatening risks - User-friendly interface - Secure and private user data management Ideal Skills & Experience: - Experience in mobile app development - Knowledge of astrology is a plus - Strong UI/UX design skills - Expertise in secure data handling

    $410 Average bid
    $410 平均报价
    26 个竞标

    React Native / Expo Developer Needed 7-Day Sprint to Polish & Ship a Mobile App (Non-Profit) We’re looking for an experienced React Native / Expo developer to help us finalize and ship an existing mobile app. This is not a from-scratch build — the app is functional and well underway. We need help refining performance, completing integrations, and preparing for release. Source code is ready and available immediately. About the App The app combines two core experiences: A daily puzzle game — grid-based, touch-driven gameplay with a short interactive sequence after completion. A utility layer — a simple request-and-claim flow where authenticated users can view, claim, and log activity via a dashboard. Current State Built with React Native / Expo (Expo Go t...

    $488 Average bid
    $488 平均报价
    203 个竞标

    Project: Simple AI Web App – Create Social Media Videos Automatically I want to build a simple web-based SaaS platform (MVP version first). The platform should allow users to: • Create account and login • Upload photos (example: property photos, product photos) • Enter short text (price, description etc) • System generates short social media video automatically • Add AI-generated voiceover from text • Add captions automatically • User can download finished video The system will connect to existing APIs such as: • OpenAI API (for script/text generation) • ElevenLabs or similar (for voice generation) • Video creation API to create videos from images Requirements: • Simple clean dashboard • Upload photos section • “G...

    $9497 Average bid
    保密协议
    $9497 平均报价
    107 个竞标

    Publish React/Capacitor Web App to iOS App Store & Google Play Store Job Description: We have a fully functional B2B e-commerce web application built with React, TypeScript, and Capacitor that we need published to both the Apple App Store and Google Play Store. Project Overview: The web app is complete and production-ready Capacitor is already configured in the project We need an experienced developer to handle the native build process and app store submissions Scope of Work: iOS (App Store): Configure Xcode project settings Set up app signing and provisioning profiles Create App Store Connect listing Handle app review submission process Address any rejection feedback until approved Android (Google Play): Configure Android Studio project settings Generate signed APK/AAB Create Goog...

    $503 Average bid
    $503 平均报价
    144 个竞标

    Italian Native Speakers Required for Mobile Voice Recording Task We Still need 100 Females and 100 Males Speakers for long term recording project. We are continuing to expand an Italian voice recording project and are looking for native Italian speakers to join. The task involves recording 375 short Italian sentences using our easy and guided mobile application. This is a simple reading task and does not require any professional audio equipment. Record 375 short sentences in Italian Use our official mobile recording app Speak clearly with a natural accent Record in a quiet environment Native Italian speaker Smartphone (Android or iOS) Ability to follow basic instructions Attention to audio quality $8 USD for completing all 375 sentences. If you are interested in this project, please...

    $6 / hr Average bid
    $6 / hr 平均报价
    9 个竞标

    I need a call schedule system for employee shift management. The shifts need to be scheduled monthly. I will distribute it. The schedule consists of 3 tables. The template is available, approved leaves are provided in a timely fashion About 25 employee on average Key requirements: - avoid conflict of duties. - follow specific and clear rules - instructions Ideal skills and experience: - Experience in developing scheduling tools or apps. - Proficiency in WhatsApp API integration. - Strong UI/UX design skills for ease of use. Looking forward to your proposals!

    $33 Average bid
    $33 平均报价
    31 个竞标

    I’m ready to bring my online store to Android and need a talented developer who can translate a straightforward e-commerce concept into a smooth, modern mobile experience. Because I’m starting with Android only, the build should be fully native (Java / Kotlin) or cross-platform so long as the Android release is polished and Play-Store-ready. Scope • End-to-end development of the Android app—from clean architecture and intuitive UI right through to final deployment. • Core e-commerce flow: product browsing, cart, checkout, and secure payment processing. (If you have proven plug-ins or gateway SDKs you prefer, let me know; I’m flexible as long as PCI-compliant options are in place.) • Admin-friendly integration so I can add or update inventory wi...

    $300 Average bid
    $300 平均报价
    43 个竞标

    I already sketched the full flow of the project in Figma (previewable here: ) and now I’m ready to turn that prototype into a working application that runs smoothly on both iOS and Android. The core goal is to let restaurants (or similar vendors) receive, track, and fulfil customer orders in real time. Every user—whether customer, kitchen staff, or vendor admin—must sign in, so robust authentication is essential from the first build. Key features my prototype covers and that I need fully implemented are: • Order tracking from placement through fulfilment • Menu management that vendors can update in-app • Automatic customer notifications on status changes • A dedicated vendors dashboard for viewing live orders and basic analytics * user c...

    $1546 Average bid
    $1546 平均报价
    296 个竞标

    I have an existing Flutter mobile app (Firebase backend + RevenueCat + web scraping). Most functionality is already implemented. I need an experienced Flutter developer to update and refine several features. I believe this should not take more than a few days for an experienced developer. Scope of Work: 1. Sync Local Storage with Firestore (Offline Support) - Keep using local storage for offline mode - Sync shift data with Firebase Firestore - Handle offline → online auto sync - Prevent duplicates (unique shift ID) - Secure Firestore rules (user-only access) - Ensure cross-device sync works properly 2. Fix Email Verification (Spam Issue) - Configure Firebase Auth to use custom domain () - Set up SPF, DKIM, DMARC - Improve email template - Ensure emails land in inbox (Gmail/Outlook) ...

    $147 Average bid
    $147 平均报价
    162 个竞标

    We are looking for a skilled Full-Stack Developer to help diagnose and resolve bugs in a baby clothing designer app currently in closed testing, built with React and Node.js and wrapped using Capacitor for mobile deployment. The application is maintained in Replit. This is an existing app with a defined feature set. The focus of this role is on debugging front-end and back-end issues, improving performance and stability, resolving Capacitor-related issues including builds, plugins, and mobile behavior, and polishing the app in preparation for broader release. You will work directly with the product owner and be provided clear reproduction steps and priorities. Experience with React, Node.js, Capacitor, and comfort working in Replit is important.

    $15 / hr Average bid
    $15 / hr 平均报价
    220 个竞标

    I’m launching a full-scale service platform and need the entire digital stack built from scratch: a responsive website plus companion apps for both iOS and Android. Core functions I must see working smoothly are: • secure user registration / social login • real-time service booking with calendar availability • two-way ratings and reviews after each job • live map tracking so users can watch providers en-route The website should mirror the apps in look and flow, share one database, and include an admin dashboard where I can approve providers, manage bookings, issue refunds, and pull reports. Push notifications, email alerts, and gateway-ready payments have to be wired in from day one. I’m happy for you to suggest the tech stack—whether th...

    $657 Average bid
    $657 平均报价
    64 个竞标

    I need a Zepto-style quick-commerce application built for both iOS and Android. A shared codebase such as Flutter or React Native is fine, provided each store’s guidelines are fully respected. Core flow • Sign-up / login (phone, email, social) • Dynamic product catalogue with search, filters and real-time pricing • Cart, checkout and seamless order processing Critical integrations • Payment gateway for cards, UPI and wallets • Live link to our inventory management system (API or webhooks) • Automatic order dispatch to a third-party delivery partner with status updates returned to the app Deliverables 1. Pixel-perfect UI that follows modern quick-commerce patterns 2. Secure backend (Node.js, Laravel, Firebase Cloud Functions—o...

    $371 Average bid
    $371 平均报价
    59 个竞标

    Estoy desarrollando una web app de gestión orientada a escuelas de vuelo y aeroclubes, con proyección a iOS y Android. El proyecto es serio y ya está definido a nivel funcional. Inicié el desarrollo en Base44, pero necesito migrarlo a Supabase para dejar de depender de esa plataforma y dejar la solución lista para producción. Busco un/a desarrollador/a o socio técnico que pueda encargarse de: Migración completa a Supabase (base de datos, autenticación, storage y lógica backend que corresponda). Dejar la web app lista para producción. Prepararla para publicación en iOS y Android (arquitectura compatible / empaquetado según stack elegido). Módulos clave (simples y eficaces): Acceso y gesti...

    $579 Average bid
    $579 平均报价
    77 个竞标

    Namaa is the working name for a mobile application that will make saving money feel natural, fun, and rewarding for teenagers and young adults. I already have the core vision—an engaging “smart” companion that nudges users to set money aside, understand where it’s going, and celebrate progress—but I need help turning that vision into a tangible product. What I expect from you is a full-cycle contribution: refine the concept with me, map the key user journeys, design a clean and youthful interface, and build a working prototype that runs smoothly on both iOS and Android. Along the way, I’m keen to explore ideas such as automated saving triggers, gentle gamification, or even friendly challenges between peers; if you can prove a better approach, I’m ...

    $2134 Average bid
    $2134 平均报价
    194 个竞标

    I'm seeking a skilled app developer to create an expense reporting app for car-related costs. The app should be available on both iOS and Android platforms. Key Features: - User-friendly interface for easy logging of expenses - Categorization of expenses (fuel, maintenance, etc.) - Visual reports and summaries of spending - Data backup and sync across devices - daily, monthly and yearly expenses reports Ideal skills and experience: - Proven experience in mobile app development for both iOS and Android - Strong UI/UX design capabilities - Experience with data visualization and reporting tools - Familiarity with cloud services for data backup and sync Please provide detailed project proposals in your application.

    $154 Average bid
    $154 平均报价
    34 个竞标

    I’m building a lightweight yet polished video player for Android that feels as snappy as MX Player. The essentials are straightforward: it must play local MP4, AVI, and MKV files flawlessly and let the viewer load and switch subtitles without hiccups. A clean, modern look matters to me, so please wire in theme customization (at minimum light and dark, with room for future accents). I’m not asking for streaming, gesture navigation, or custom button layouts right now—those can stay on the wish-list until the core experience is rock-solid. I’m fine with ExoPlayer, Media3, or a comparable native library as long as you keep the codebase modular (Kotlin preferred, Java acceptable) and target the latest stable SDK. Smooth seeking, orientation changes that don’t...

    $69 Average bid
    $69 平均报价
    16 个竞标
    Our Startup Dream Team 2
    6 天 left
    已验证

    I’m assembling the core team for a brand-new, bootstrapped startup. Funding will come later; for now I need people who see the long-term vision, crave recognition, and are ready to put real skin in the you are looking for money then dont bid. If you are looking for value for now and money later then. Welcome to the team brother and sisters. Technical minds will drive our product from zero to MVP. If you live and breathe full-stack development, can craft a rock-solid mobile app, or know how to turn raw data into insight with data science and engineering skills, your expertise is exactly what I want shaping our architecture. Creative energy is just as vital. Graphic designers, content writers, and video producers will define our brand, voice, and story across every touchpoint. From...

    $2 / hr Average bid
    $2 / hr 平均报价
    19 个竞标

    I have some idea about making game like Black Russia or Grand Mobile . Which are CRMP projects . Crmp stands for Criminal Russia Multiplayer . It uses gta sa but a different russian map and other new model of cars . I have files and launcher apk i got from other sources just need to setup the files and all. Looking for a developer who can do it

    $99 Average bid
    $99 平均报价
    4 个竞标

    I have an Android build of a digital-payment platform that currently shows only a “coming soon” landing page. I need someone who already feels at home inside the Google Play Console to walk this app from upload to live internal testing and, ultimately, production release. Here is what I need from you: • Create or refine the full Play Store listing (graphics, short description, long description, tags, content rating, privacy policy link). • Upload the signed AAB/APK, configure the release track, and make sure the mandatory policy checks (data safety, sensitive permissions, target API, etc.) are cleared. • Set up an internal or closed test, add testers, and ensure they can install the build without issues. • Provide a short report of what you changed i...

    $17 Average bid
    $17 平均报价
    14 个竞标

    I'm looking for an experienced app developer to create a referral program app for both iOS and Android platforms. The app should have a points-based reward system. Key Features: - Referral Tracking: Monitor and display user referrals. - Reward Management: Administer points rewards for referrals. Ideal Skills & Experience: - Proficiency in app development for both iOS and Android. - Experience with referral systems and reward management. - Strong UI/UX design skills for user-friendly interfaces. - Familiarity with analytics integration for user engagement insights. Please provide a portfolio demonstrating similar projects.

    $1195 Average bid
    $1195 平均报价
    163 个竞标

    Game Designer Needed to Translate Educational Game Idea into Concrete Game Design & Game Flow Description We have a clear overall concept and learning objective for an educational game, but we are struggling to translate this vision into a concrete game design that a developer can implement. We are looking for an experienced Game Designer who can help us turn our idea into a real, playable game by defining: Core game mechanics Player challenges and engagement systems Game flow (step-by-step progression) Level structure and difficulty progression Rewards, feedback, and motivation systems The goal is to create something that is not just educational, but actually feels like a game — with challenge, interaction, and fun. What you will deliver A clear Game Design Document (GD...

    $1268 Average bid
    $1268 平均报价
    65 个竞标

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