Improve your mind skill  finding out the missing number.
Choose the level: Easy, Medium, Hard or Random.
Push START- Time Up or Time Down
Guess the missing numbers to get points. Higher Level , more points.
Ideal for kinds and people who need to exercise their brain.
Very easy to use.
Donations for App maintenance welcome.

For any question and support issues please contact:

murolau@gmail.com

Thanks.