Astra Go - Offline KataGo
Lessons, tsumego & AI review
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Play offline with KataGo on beautifully lit boards. Learn through lessons, graded life-and-death puzzles and move-by-move reviews. Find the key move in every game.
AstraGo
Set a stone on a board rich with wood grain and light, hear it land, and settle into the game. AstraGo brings solo play, learning, and review together in one Go setting.
Play KataGo anytime
KataGo runs on your device, so you can start a game offline. Choose an opponent level, a 9×9, 13×13, or 19×19 board, and Chinese, Japanese, or Korean rules. Save an unfinished game and pick it up later.
Two players, one device
Play with someone beside you and set each player's main time and byo-yomi.
Lessons and life-and-death problems
Learn through board demonstrations and exercises, from the basics and opening to the middlegame and endgame. Choose problems by difficulty, and use hints, trial moves, or answer playback when you need them.
Records and review
Save and revisit games on your device, or use an empty board to record an over-the-board game. In review, explore win-rate and score trends, key mistakes, AI suggestions, and alternative moves.
A board with atmosphere
Kaya, walnut, bamboo, ebony, and vermilion lacquer themes bring distinct materials and surroundings to the board. Stones, bowls, lighting, and sound shape the feel of each move, in portrait or landscape.
No account is required. Solo play and basic learning work offline. AstraGo has no ads.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added SGF import and sharing to make saving, managing and exchanging game records easier.
The developer, Qi Shen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Qi Shen
- Size
- 164.9 MB
- Category
- Education
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
13+
- 13+
- Frequent
Contests
- In-App Purchases
Yes
- Vermilion Lacquer Theme $0.99
- Ebony Theme $0.99
- Bamboo Theme $0.99
- Walnut Theme $0.99
- Full Review $4.99
- Copyright
- © 2026 Qi Shen