About this app

"Arithmetic problems appear on the screen at fixed time intervals,
It's an app that lets you use your smartphone if you answer the questions correctly. "

Sometimes I worry about my kids' use of smartphones or tablets as parents,
I hope that the time it takes to use the device is a little more helpful to our children.

This application was born out of such troubles.
Rather than letting you use your smartphone or tablet unconditionally,
Allow them to use, but allow them to develop something on their own.
This application aims to achieve this through math problems.

If you set the difficulty level, type, number of problems, and cycle
Mathematical problems will appear periodically at the appointed time.
Children can continue to use the device until they have all the correct answers to their problems,
If a child tries to close the app without solving the problem, the problem will appear right away.
If children want to keep watching the video or continue playing the game,
Children will have to solve these arithmetic problems.

I planned and created this application for my child as a parent,
In fact, once you run this application on your tablet,
I've seen kids get to the pace of getting their answers right.

This application has a free trial version and a paid full version.
First, make sure your app is running on your device with a free trial,
If you like this application, please use the paid version.

- Free version: The addition of the 3 easiest difficulty problems appears every 5 minutes. (Unchangeable)
Password can not be changed.
You can not set it to start automatically when the power is turned on.
It includes AD.
- Paid version: All problem related settings are available. (Difficulty level, type of problem, number of problems, problem cycle)
You can change your password.
You can set the problem to run automatically when the power is turned on.

Precautions!
If a free version and a paid version are installed at the same time on one device, execution of the application is prohibited. If you installed a paid version, please remove the free version.

New features

Bug fix for Android Oreo and Pie.

App Permissions

Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows applications to open network sockets.