5 stars: Nice! I play it before sleep. I like the information it gives, especially the written facts in the beginning of each level.
5 stars: It's a very fun game but I wish I can play without ads that's really annoying
4 stars: Nice game that you can spend countless hours solving. The puzzles are extremely amazing specially that each one is focused towards a specific subject. This in particular help you to concentrate and bring about solutions.
4 stars: Love it thank you for this lovely game
3 stars: It's good but it's better to be more wide with some pictures
2 stars: There is some information not acuret need corection
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