App development

Design the app user interface with feedback from me
Develop an app that's linked to a data base.
The app will have capacity to support user account creation
The app will be able to read bar codes and the likes
Will support search facility using a set of numbers and alphabets linked to information in the data base.
The app will have a map link and be equipped with location services
Ability to link search results from the data base to google search for more information
New page to show result of search
All operating platforms .. iOS, Andriod, Windows, blackberry....