My first app, DotSpace (not a game) is free (full price was .99 US) to celebrate the release of v1.5. It's a flexible "organizer"/"list" app that works however YOU want it to: the "buttons" on the grid toggle On/Off (useful to show task completion while leaving the button there to re-use). Each button/"dot" can have one of 3 shapes, 27 colors, and any label you want (even a multi-line mini-list). I've seen people use it as a trip-packing list, a grocery list, and a to-do list--but the sky is the limit! I myself used it on iPad to mind-map places and characters for a future game. 45 items fit on an iPhone, with no scrolling. (108 on iPad. And I have tested a hypothetical iPad Pro version with 300!) Discussion thread: http://forums.toucharcade.com/showthread.php?p=3552443 App info is currently processing and/or the app is not yet fully available for sale on the US App Store.
