A cross platform quiz game for Android/iOS (Xamarin is preferred)

We need to develop a quiz-game which is deployable to Android/iOS (Xamarin is preferred). What we need: - Game screens: + 1st: A start button and highest history score + 2nd: Main game (details below) + 3rd: Show the score of this session and a Replay button - Game data: + We have a collection of word (UTF-8 encoded) which should be stored offline (i.e. sqlite). Data should be indexed for quick search query. - Gameplay: Step 1: To start the game, our app (A) will select a random word from database and display to user (U) Step 2: Timer appear count down to 0 Step 3: (U) input answer using keyboard Step 4: (A) check if answer is valid by checking if the answer is a word exist in database. - If valid: (A) select a next word from database that meet some requirement. There will be two scenarios + (A) can find the new word: display to user and go to Step 2 + (A) can not find any satisficed word: display a congrat message and go to Step 1 - Not valid: end game and move to 3rd screen Since the game is pretty simple. I would prefer if you can show a prototype for this (without design and animation). Then we can discuss on how to make the game look better with design and animation. Best regards,