It works quite well! It starts an add on lunch which you can skip after a few seconds. The app itself is great and works perfectly! I love the options for different layouts and the sound effects are spot on. I noticed that some people have complained about this app. First it is not a game but a calculator. Secondly if you don't like the gravity control you can turn it off in the options.
The screen when black when i open the app...it does not work
No game concept
I love this app it is tottally amazing
Beads move with phone The beads only stay still when phone is held flat and very still. Another app beads stay put even when app is closed and reopened.
Crashed!@##&$# Crashed on first launch on my galaxy s advance i9070. Screen appears but crashes in two secs...pls fix it...
It generates training problems for Abacus maths practice. No ads, no purchases.