My Flash Box app for iPhone and iPad

Features:
- Create as many boxes for flashcards as you like
- Write on the flashcards with an Apple Pencil or your finger, you are not restricted to simple text
- Learn the cards in both directions
- Test yourself with four different levels: Each time you got one card right it moves up one level, but if you got it wrong it goes back to the first level!
- Flexible test mode: You can test cards from the different levels or all cards from a box at once, shuffled or in the order in the box
- Edit your cards the way you like, write text and formulas, draw and get creative