Developing Android and IOS "Surprise" Application -- 2

GENERAL DESCRIPTION ---------------------------------------- The system consists of a PHP Web server and Android and IOS mobile social applications. A user installs the application and as the first step he required to register and verified (like in whatsapp). Once registered and verified, he can find all his contacts that are also registered to the system. He can chat with them and also create groups and chat with his groups (like in whatsapp). User can also create events (birthday, wedding, party, etc.) and for each event provides data about the event such as name of event, date, location, participants (group or users from his contacts who have an account in the app). Finally he able to choose gifts he want participants to buy for this event. He can choose gifts from ebay, Amazon using their API and also put manually. From the other side, the event participants can see the gifts who celebrating the event wish to get, and they can buy it for him by their own or alternatively create a purchasing group and buy together using ebay and Amazon API and Paypal and Google walet API. Gift acquired , will be marked as such to avoid a duplicate purchase of same gift. ANDROID APPLICATION --------------------------------------- Here the mission is to update an existing application. Freelancer will receive from me the source code of application and modify it according to the attached document. IOS APPLICATION ------------------------------ Here the mission is to develop IOS application from scratch exactly the same like the android application after modification. PHP SERVER --------------------- Here the mission is to update an existing PHP server. Freelancer will receive from me the source code of server and modify to support both applications logic.