Android Quiz App

I need an android quiz app that has a high quality design. Would like to implement this in Phonegap if possible but I am open to your best suggestions. Screenshots will be provided from other apps that have design/functionality I am looking for. Main Screen - Select 801 test, 802 test, settings 801 Screen: - Take test (20 questions at a time) - Flash Cards Test/Quiz Screen - Needs to have 1 question per screen. 4 multiple choice answers per question - Questions and ANSWERS order need to be randomized. So if I need to setup a database of questions and answers I can do that, but I plan on having a couple hundred questions. - After 20 questions is up, It will display the percentage and how many user got wrong. User can click a button to either take another test or view answers or go home. View Answers Screen - The view answers screen will display the question and answers (either all at once or one at a time). If the question was answered wrong, wrong answer will be highlighted red, correct answer highlighted green, and then an explanation justifying the answer to the question below the answers - At the end of this screen, user can take another test or go home. Flash Card Screen - Needs to have different categories - Once a category is selected, it will start the flash cards. It will show a term, when the user taps the screen, it will show the answer/definition Then the following steps above will happen for the 802 side. I would like a "free version" of the app that has Ads and only does about 40 questions (80 questions total, 40 for the 801 side, 40 for the 802 side) and flash cards. Then a "paid version", removing the ads and allowing for all the questions I have. Please submit two quotes, one for the FREE version, the one for BOTH versions. IF possible, send links to apps you have done. Eventually would like to add sign in options from google, facebook, twitter, etc and allow for user profiles, as well as an IOS app. So more work can come from this. Thank you!