5 stars: For some reason it did not work well for me. About 40% of correct clicks are reported invalid
5 stars: Very good app, such I want to train my brain)
4 stars: Simple app that works well. I wish it would keep a log of test results, and show result history with a graph. Also, I would like to have an option to customize settings in the
4 stars: Hey there . Such a great game for working on concentration. Just one thing is missing and that's a log or history of all the times we have played . Expand the game a little bit and it will be controversial !!!
3 stars: Good game but i give 3🌟 because there no have 3 colour mode please add 3 colour mode
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