【實用工具app】SimpleAnzan|最夯免費app

This app shows number one after another, and just adds all the numbers.

It shows you the answer while you do the math in your head.

It stimulates "a different side of your brain."

You can switch around the "digit," "speed," and "question amount" according to your level.

Don't try too hard.

Let's shake up your brain!

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免費玩SimpleAnzan App

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