Social Networking Mobile App

I want to launch a clean, straightforward social-networking app for phones. The focus is on helping users create rich personal profiles and share updates through a central activity feed—no external platform integrations or in-app messaging at this stage... (Budget: $750 - $1500 USD, Jobs: Android, API Development, App Design, App Usability Analysis, Backend Development, Database Management, iOS, Mobile App Development, PHP, UX Research)