Develop a Android Application.

Hello everyone. I need a social media application for android. I have the design ready. The application must have the following features: Sign up using phone number. Nearby people through GPS. (Require very accurate results here) Instant messaging. Follow / Unfollow / Block User No copied APIs, work from the scratch. No exceptions for bugs, crashes, must work flawlessly. I need quality work in my budget. Feel free to ask any questions. Thanks!