I agree for the 1.5$ per hour initial pay. Previous apps which I have developed alone include:-
1. Album art downloader
2. Album art live wallpaper
3. A clone app of Type Machine app on playstore
My other current projects on freelancer.com are:-
1. Developing a wallpaper which queries and fetches the wallpaper from database.
2. Working on developing a part of custom dialer app.
I have less experience in web services, so initially I would be slow on web services related work.
In case you are interested in working, please mention how much days or months I am supposed to work full time.