Modify an Android application and add simple backend

Modify an existing Android / iOS app and change UI and add more functionality. 1- Hide landing page and archive unused code to be used later for offer filtering. 2- Re-design all offers page (Bigger images, less text etc.. ) 3- Re-Design offer page, add share options (Facebook, SMS, Whatsapp ) 4- Remove registration process and implement new registration using places API (Google or Four Square) . 5- Disable ads in the code (They use a flag on or off in the DB, the new could should not check this flag) 6- Remove shopping list from from side menu. 7- Remove add an offer 8 - Remove favorite 9- Remove Start page. (Home page) 10 - Eating and drinking and others filter (Instead of landing page) , this will be initialized when the user chooses filter. Upload process : User click add offer (Camera icon) User will get a list of places around current location (20 meters) . User chooses a place from the list. User ads a picture of the offer User can retake or delete existing picture or cancel. User can add more images. User sees an overview of images User enters offer validity. User clicks upload. Alternate path: User click add offer (Camera icon) User will tab add a place button. User is prompted to input place name GPS coordinates are added automatically after user adds a name (Happens in the background) Continue with step 4 above.