The app needs to be built for iphone and Android.
It loads up images as flash cards in exercises and lessons .
The user can click a play button and go through the exercise or lesson as the flash card loads up.
The user can go back and forth.
There should be an option to bookmark a lesson, exercise of flash card.
The ability to charge users to upgrade on lessons.
The abilty to charge users to uopgrade to add audio.