Hi,
We have reviewed your requirement and we are comfortable to develop a mobile app with functions of membership system.
In your mobile app we will provide you all functionality like:-
1. Login + Register system, database for saving all the users personal information
2. We have our own design, developer have to develop it based on our requirement.
3. Members can uploading their photo as thumbnail image.
4. Users is able post activities/events for other people to join
5. Users can post articles, music and video and others can give comments like BBS etc.
We have already completed many I-Phone and android project so we can do it. we can complete your project with in time period.
We are waiting for your positive response.
Regards
Balveer