To be honest, I was looking for something that I could let my 7 year old son play on the iPad that would 1. keep him occupied for reasonably long periods of time, and 2. keep him from playing Fortnight. I thought I'd give Tappity a try and I was amazed how quickly he understood how to use the app, and even more remarkably, how he was retaining information that he was learning in Tappity. I can see a sense of pride in him when he finishes a section, and he starts asking me questions about the things he learned (about the molten core of the earth, or ecosystems - there's a wide range of topics) and I was very happy when I received an email notification telling me that the section had been completed, and giving me highlights and questions to ask (with answers). So not only is he learning in a fun and engaging way, he still thinks I'm smart. Great job on the product guys. Keep up the good work and keep cranking out interesting content.