App Support — Soroban Dojo: Abacus Mind

Get help with Soroban Dojo: Abacus Mind, the abacus training hall.

Soroban Dojo: Abacus Mind is an Android app: a 3D soroban and suanpan abacus trainer with 20 lessons, 15 ranks, flash practice and a rival. This version has no ads, no accounts and no tracking, and it works offline. Questions? Write to support@equalinformation.com.

Frequently Asked Questions

How do I use the abacus?

Drag a bead toward the beam to count it and away from the beam to release it. A digit under every rod helps you read the number. You can choose a soroban or a suanpan, and five to thirteen rods, in Settings.

What are ranks?

Fifteen examination ranks from 10 kyu to 5 dan. Each examination is ten problems; seven right passes and nine or ten earns the third star.

What is Flash Anzan?

Numbers flash and vanish and you set their total on the abacus. Speed drills, a rival race and a daily set are also included.

Can I watch the computer work a problem?

Yes. Auto Play works a problem on the abacus and says why it moves each bead. You can pause, change the speed, press Think for the reason in plain words, take over at any time and hand it back.

What is free and what is paid?

The first 90 seconds of real play, the lessons, Auto Play (Watch & Learn), the free abacus and the rules are free. A one-time in-app purchase (not a subscription) unlocks everything else. This version has no ads.

How do I restore my purchase?

Open the unlock sheet or Settings and tap Restore Purchase. You need to be signed in to the same Google account that bought it.

A purchase did not unlock. What should I do?

Check your internet connection, make sure you are signed in to Google Play, then tap Restore Purchase. If it still does not work, email us with your device model and Android version. Refunds are handled by Google Play at support.google.com/googleplay.

Does the game work without internet?

Yes. It plays fully offline.

Can I use it in landscape and on a tablet?

Yes. The layout follows the device in portrait or landscape on phones and tablets, and text can be enlarged up to 300 percent on every reading screen.

Is my data private?

Yes. The app has no accounts, no servers, no analytics and no tracking, and your record stays on your device. See our Privacy Policy.

How do I contact support?

Email support@equalinformation.com and tell us your device, the Android version, the app version and what happened. EqualInformation, LLC
Website: equalinformation.com | equalinformation.weebly.com | bpupadhyaya.github.io (fallback)