Lightning Maths released today
Last night, my second app got approved for release by Apple. You can find it in the App Store: https://itunes.apple.com/ae/app/lightning-maths-mental-maths/id1180286941?mt=8
This is a quite clever app. It will ask you some to complete some operations (+,-,x,÷) with a range of numbers between 1 and 99, and if you get it wrong, it will ask you the same question at a later time until you get it right.
Questions on divisions will only produce integers, while the answers to substraction questions will always be positive. The app will save your answers and never ask you the same question again unless you provide a wrong answer.
For a true challenge, set the speed to 'rabbit', and try to beat your high score.
The reasonable App-In purchase unlocks all operations and removes all the advertising.
I hope that you will like it !