SumOfDigit app for iPhone and iPad

Welcome to "SumOfDigit" application.
This is very interesting and amazing play with number.
In this app you can count the sum and find the difference.
We give you two option, you can choose any which you want to use.
Count Sum: In this display some number and also four option given below, you can count and choose correct answer to go ahead.
Count Difference: There is display two number and also four option given below, you can find the difference between two number and choose correct option to go ahead.
You can choose only correct answer to go ahead.
Get now and enjoy!