I have checked your description so I know what you want. Actaully, now you want to get perfect WPF/UWP/C# desktop app.
I am very familiar with such job and until now, I have been working with many business for 6+ years.
For this project, I mastered C#, Qt, UWP, WPF, React, React Native, Node.js and Electron. If you use this frameworks, you can reduce the time and budget to build your app.
Furthermore, I have rich experience in mobiel app development so I can build the mobile app for iOS and Android using Xamarin, React Native and Flutter.
I can build any type of project in web and mobile deveploment.
I can guide you to get the wonderful project and I will do my best in this job.
Let's discuss more details about this job and I will suggest you more choice for this job.
Please contact me and jump into dev.