It is a computer that can be one-touch addition subtraction. Dice, coins feature is on, too. Please decide on their own sides. Command function of the numbers 1-30 come out every two minutes on, too. The grade up to ver1.01 on 1DL memory! The grade up to ver1.02 on 2DL memory!
There is also a donation version. People can not be helped is money left over by all means. ※ I can use all the features of the free version. There is no (a) taking, especially when you donate.