Our son 1st class takes the app really good, he "plays" them very much and is the reward - Medals - also very motivated to exercise regularly. As a mother, I find it difficult, however, that these medals are only unlocked when you play on several days in succession. All in all, to recommend the app to practice safe, especially since the individual games can be adapted individually in difficulty. There should one but be aware that the first game is rather boring and unlock some rewards only from everyday play.
