The best soroban and suan pan app! Been using it for 3 years with my son and could barely wish for more. Not just a complete abacus, but a complete learning system. I applaud the developer
Font is to small I have a Galaxy Note 5 and I can barely read the numbers. Otherwise its a good app.
3 stars until I can use proper technique on this abacus This app is great but flawed because it doesn't allow one to move beads from different parts at the same time, which is absolutely necessary for it to be used efficiently. I'm trying to learn to use proper technique and this is totally messing me up. I would give it five stars of this small, but very serious problem was fixed.
Best abacus app available. If I have any suggestions it would be to bring in multiplication and division. Easy to use. Very effective tutorials. Different bead selection. Thank you for this app.
Minor bugg fixes
Fully interactive self-learning package for fundamental abacus mental arithmetic
The APP has a graphical ABACUS,tutorials on Addition,Subtraction, Multiplication
A complete package on multiplication and division on advanced abacus topics