Tynker made waves back in March when the developers released the teaching app on the iPad. It introduces children (or anyone, I suppose) to the basic principles of coding and programming. Tynker was available on the web before that, teaching extremely basic programming with a puzzle-style visual interface and pre-made tools. The Android app is only available on tablets, which makes sense given the format, and it costs $4.99 with no in-app purchases.

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