Have you already tried Number Switcher ?
Most probably, no, because it's a novelty!
The game that will conquer your heart and destroy your nervous system ! 
Game description:
Change down blocks and match them with the falling blocks
If the upper block attains the down block - You lose!
Each block has its own color, that is making a game process easier.
Catch the falling down bonuses that will help you. Be careful from useless bonuses!
Video:
Get From App Store: itunes.apple.com/app/id1263874627
Get From Play Store: play.google.com/store/apps/details?id=wbappz.numberswitcher