Scrivere un'applicazione iPhone

Hello there, I need an app for iOs and Android. This app will be used from motorcyclists, it will allow to share danger/police/dirty street/traffic) with other app users The app have to: - be able to interface with google maps (i have to be able to use it as navigator) - create new user (using facebook - google credentials) - each user use the app like google maps navigator. The only exception is that he can add a "danger token" in his actual position. This process have to be very immediate and easy to do (you'll do it while driving): with first touch on your position 4 rectangles of different colors appear on the screen (danger/police/dirty street/traffic), with the second touch the app lock the actual position with the corresponding signal (danger token). - every user have a level (from 1 to 100). each action like add/remove danger token add point. - every user can comment/like danger tocken - every user can delete/modify only danger token leaved by lower level user - every app user that is driving near the danger token receive a notify from app - every user that have a danger token on the planned route receive a notify. - every user can see every danger token actually active. - every token stay active for 12 hrs (or until high level user disable it). - the app need a dedicated server: we can discuss it If something isn't clear contact me on chat.