Native app (java c# compiled with visual studio with xamarin) want to add new features in app

Helloo, I want add new features in my android app,its all features is now in my website, here is what i want - (its in website now but not in app) audio file send create poll choose alternative like dislike buttons "after send post in post box" like dislike alternative buttons (which user will choose from create new post) add send to (user can send post in msg or outside like fb g+ tw) repost (like share in your timeline) rating (rating for post) if you want to see codes so you can download it [login to view URL] if u wanna see app - [login to view URL] so now you have everything...just bid here after see all things..i will award after see cost and time...who can do it in min cost and time... Note - you can't change bid and for time no late issue accepted.. App code language - java c# compiled with visual studio with xamarin Website code language - Core php