Retro Number is a free and simple application for Apple Watch and iPhone.

It contains four kinds of games that train your brain.

Let’s try and improve your intellectual ability.



-Couple

Tap the same numbers as fast as you can.



-Flash

Memorize the randomly placed numbers in 5 seconds.



-Reflex

Just tap the numbers from 1 to 9 in order as fast as you can.



-Line

Swap and align the same three numbers vertically, horizontally or diagonally.