Simple word learning app

Create a simple word-learning app with two screens: 1) a screen with - a timer that can be set for count down (eg 1 min) - a switch to hide the timer when starting; If not hidden a countdown timer will be visible - a start button - a level selector (1-5) - Below the timer 3 cards with letters (see attachement) The program has a list of words with difficulty level 1-5. red from a resource file. The letters should be animated like here : [login to view URL] (vertical flip) Below the letters a button "OK" when hit showing the next word. When time is past (small buzz) , showing the total of correct words. (eg. 8 ) in big on screen 2) a second screen implementing only the 3 cards flipping over, depending on finger movements. No timer, no score needed here. app should work on Android,. Source code included on delivery