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This is an app to practice drawing circles.

Draw a circle according to the sample shown on the screen. Displays the results of evaluating the difference from the sample on a scale of 100 points.

By default, the position and size of the sample changes randomly, but you can change the settings to make it fixed.

We recommend using the same stylus pen you use when actually drawing.

Let's grow grass on the heat map by drawing many circles every day.