Hello,
Would you please provide me your app link that is already in your hand so that I can get you fully? I have one more query - will you provide me the new designs/graphics?
For your concern, we have developed 250+ apps for iOS, Android, BB, Windows Phone and PhoneGap so far. I'm very much confident enough to develop your such app.
I'd like to chat with you in details. Please let me know your convenient time.
Looking forward to hearing you soon.
Thanks.