App Description
Abacus - Counting frame for kids for visualization of numbers and calculations, works like a real world abacus.
Available as a universal app for iPad/iPhone/iPod touch.
App Changes
- August 30, 2012 Initial release
- September 11, 2012 Price decrease: $0.99 -> FREE!
- September 13, 2012 Price increase: FREE! -> $0.99