Hactar Go

In-app purchases
4.8
120 reviews
1K+
Downloads
Content rating
Everyone
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About this game

Go is ancient strategy game with simple rules. Hactar go is perfect for learning go, and to study go anywhere you are.

Hactar offers pro-level AI analysis. It can be used to find better moves or mistakes from any games.

It is possible to search games for position or players. Search covers games from well-known public WEB archives, more that 90000 professional games are available. You can also include your games in the device to the search.

Hactar contains over 410 go problems (tsumego). You can also add your own collections easily, or download additional 400 problem with few clicks.

Hactar GO can be used to view and record go games in SGF format. Hactar supports variations and setup stones. Hactar can automatically replay games.

Hactar can play you, it has 1 dan strength in 9x9 board and 5 kyu in 19x19 board. If this is not enough, you can subscribe to stronger engine playing at pro level in 19x19 board.

Community provided translations welcome! The instructions for translations are at https://gowrite.net/forum/viewtopic.php?t=898
Please report bugs using email or feedback! It is difficult to offer support in Google Play forum.
Go is known also as igo, in China as 围棋 (Weiqi) and in Korea 바둑 (Baduk).
The application price includes at least 2 years of use of the network services.
Full features available in Android 7.0 and later. Older android versions use more a limited version of the application.

Hactar does not contain ads and it does not collect personal information. For the full license, please see http://gowrite.net/hactar/eula.shtml.
Updated on
Mar 18, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Financial info, Messages and 3 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
93 reviews
Karsten Keese
December 27, 2021
Recurring subscription fees bleed users dry ad infinitum, without an option to purchase the app once and for all. With superior competitor products being available that can be bought instead of rented, this milkingware has been replaced with three better alternatives, at a lower cost than what this programmer charges in a single year. Being able to play against a strong AI/bot is the entire point of using software, so it should be integrated in the local installation and not require Internet.
15 people found this review helpful
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Lauri Paatero
September 17, 2022
Thank you for the feedback. Now there is a strong AI analysis included without subscription. Hactar go has multiple uses other uses without subscription: problems, SGF editing, pattern search etc. Only use of the server-based strong go bot requires subscription.
A Google user
August 1, 2019
Easily the best Go App I've used Nice crisp clean graphics. Beginners puzzles that are really for beginners with a hint of what the player should be aiming for . Invite for optional feedback by email . Nice animation . All in all an accomplished app.
14 people found this review helpful
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Youssef Mohamed
June 23, 2020
An awesome app, of course, but.. It could be a lot better, if their were a training mode, with undo capability And analysis mode (showing the Monte Carlo Simulation results (similar to Leela zero analyze) Thanks
13 people found this review helpful
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Lauri Paatero
December 27, 2021
Analysis mode is now available in SGF editor. The mode is still a bit experimental, so improvements are likely.

What's new

Implemented editor command to delete all variations in the game.
Now Ai assumes 0 komi, when analysing all hadicap games, including 1 handicap games.