It is completely free to use.

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Major features
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・ Brain Training
　　count up
　　Memorize numbers
　　Instant memory
　　Flash mental arithmetic
　　Search for color mistakes
　　Hit&Blow
　　Search for the same pattern
　　Search for the same number
　　Find Maximum / Minimum value
　　Find different character
　　Fill-in-the-blank calculation
　　Flash tap

・ There is no membership registration

・ Choose your favorite problem and train

・ You can check the practice record of brain training

・ You can study as many times as you like

・ I will explain the method of brain training in the explanation.

・ Children to adults can do it anytime, anywhere

・ There is a world ranking of scores and response times.

・ Purchase the premium version
　　Advertisements can be hidden and can be used more comfortably


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Future release schedule
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・ Update of new problems (as needed)

We will update it every time to satisfy everyone.