"Igotomo" is a Go game results management app developed with the concept of "making Go smarter."
You can set stone placements, manage your scores, and review past games all in one smart smartphone app.

Igotomo's Main Features
- Game Record
You can manually enter the results of your actual Go games. You can enter when, who, and with what handicap you played, as well as the outcome.
You can also share the results with your opponent.
- Image Registration
You can take and register images, so by taking a photo of the board state at the end of the game with your smartphone and registering it, you can save not only the results of the game but also the board state.
- Game Record Registration
The game record registration function (SGF format) is also available, allowing you to register game records using other game record software.
Registered game records can be saved to the clipboard, making them easy to analyze in other apps.
- Rating Measurement/Rating Display
Play against your Go friends with an appropriate handicap. After a few games, your skill level will be quantified, allowing you to play with an appropriate handicap.

Continuing to use Igo Tomo within a group or with members of your Go club will allow for stable handicap calculations, eliminating tedious matches with mismatched handicaps.

- Membership Card Function
You can display your QR code from the "Personal Information" tab.

Present the Igo Tomo app QR code at a Go club that supports QR codes and use it as a membership card.

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Notice for users of version 1.6.1 (released August 2025) or earlier

Automatic version upgrades are not available.
We apologize for the inconvenience, but please upgrade by uninstalling and reinstalling the app.

Your data will remain, so you can continue using it by logging in again.