It is an application that quickly solves addition and subtraction.
In order to prevent children from getting addicted, it has a function to prevent overplay.
This feature cannot be turned off.
- If you play for about 10 minutes, there will be a break of about 5 minutes
- You can't play from 20:30 at night until the next morning
- You cannot play between 0-3 minutes and 30-33 minutes every hour