Hello there,
You want to develop social networking app, you have mock up , I have mobile app (Hybrid, Android, IOS) , php and backend skill.
We are a 10 year old IT company with highly skilled designers and developers to work on php, Mysql, Jquery, Wordpress, OSC, Magento, OpenCart, Mobile development, iPhone, Responsive etc.
It would be better if you come to have a close discussion over chat .
Best Regards
Harpreet Singh