Build ios and andriod app for an Incentive offerwall type app and a frontend WEBSITE

Wanted to build competitive app similar to Juno money , Mint Coins, Whaff rewards. Its essentially an incentive app that will rewrad users with a Virtual Currency for completing certain action, offerwalls etc.. I ALREADY have a source code for andriod app and a source code for backend website (admin panel etc) Developer Will - Modify the Andriod (source code) Add feature like a programe that can extract offer from CPA network and also organise then into categories and also send them to relevent users...depending on data. - Build Website (frontend) -Build an ios APP -Modify the backend API ADMIN PANEL to add extra features ** Priority given to those who have built similar apps This app is essentially the following: 1. User Regiters using email or social network 2. User completes various offers using incentived offerwalls and downloads app submitted by our clients and us. 3. When user completes offer advertiser posts to postback script that updates users points 4. User can see his stats and points 5. App notifies admin to send money