Useful but Frustrating.
This app isn't very user friendly. Once the game or practice starts. There is no way of exiting the app until you complete the challenge. If you get stuck or lose track of what number you're on, you must force quit the app just to start over. This is incredibly frustrating. Please add proper navigation menus. Back buttons and exit buttons would be great.
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Excellent
This is the best soroban app that I have looked at and I will certainly purchase the full version. In this version you are only limited to single digit multiplication (1-9) however the graphics and performance of this app is really great. It is fast and responsive even for two fingered gestures like setting the number "6", just like I do on my real soroban. Good app.
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Great App
Works great, lots of fun, hope the full version is as good! Thank you!
