Android Iphone Mobile App

Need to develop a mobile App for Android OS and Apple OS for a music production house. App must be able to do the following: 1. Integrate with a fully functioning website. 2. Ability to stream music from the servers (on demand online radio, with ability to isolate, search artist) 3. Ability to purchase merchandise andmusic from the website. 4. Ability for users to receive push notifications. 5. Ability for users to share the app with one click via facebook, twitter, etc. 6. The app must be linked to the backend of the website where information once updated must simultaneously update across all platforms of the application. 7. Ability for users to post comments after listening to music libraray. 8. Ability for users to mobile chat with the admins (singers, producers) live. 9. Ability for users to view live online video streaming via the website inside the app. Please send quotes ASAP along with portfolio design.