I spent much of my summer working to take all of the flash games and activities I made to help students test their knowledge of Micro and Macro Economics and put them in an Android App. It is finally done. 7 of the activities are free with ads but you can get all 15 (that I've made so far) and get rid of the ads for just 99 cents. I'm hoping this project will break even (in the accounting sense) with the ads and the small fee. Please give it a download and if you like it, rate it on google play.
I hope to have an IOS app eventually as well.