SmartGo One 4+

Learn, play & study Go game

Smart Go, Inc.

    • 4.7 • 96 Ratings
    • Free
    • Offers In-App Purchases


SmartGo One is the only Go app you’ll need whether you’re just getting started with Go or are a seasoned master. Learn, play, and win with SmartGo One!

The ancient game of Go can be enjoyed on your iPhone or iPad in a whole new way. Also known as igo (囲碁), wéiqí (围棋), or baduk (바둑), Go starts out with a blank game board that fills as you work to capture territory and stones from your opponent.

You can start with a board size of 9x9 and then move onto larger ones measuring 13x13 and 19x19 as your skills grow. SmartGo One increases its difficulty as players improve, with an automatically-adjusted handicap ensuring you’re never playing an opponent that’s beyond your capabilities. But don’t be fooled into thinking SmartGo will hold your hand — you’ll still be challenged! With a strong engine based on KataGo, expect a battle as your improving skills demand it.

SmartGo One gives Go fans a way to play, but it goes far beyond that. With SmartGo One you’ll also be able to read books about Go while replaying moves that those books describe to help you get a better understanding. A collection of more than 115,000 pro-level game records means you’ll never stop learning from masters both modern and much, much older. Players can also take advantage of a growing library of Go problems. Solving those problems is a great way to improve your in-game decision making.

Stuck or keen to learn how a master would play any position you find yourself in? SmartGo’s pattern matching technology will cross-reference your game board with those of historical games, showing you how other players dealt with the situation at hand. No matter your level of skill, SmartGo One will help you improve.

Features include:

• Choice of 9x9, 11x11, 13x13, and 19x19 boards
• A robust game engine
• Fast response
• Manual choice of handicap or automatic handicap adjustment
• Advanced features allow players to record, annotate, and then edit their games for future learning and improvement
• Track per-user levels
• A territory estimator
• Hints
• Undo and Replay capabilities
• Tutorial with over 100 problems
• Extensive user manual

We value your privacy, and only collect the minimum information necessary to make our apps work well for you. You can read more at

This app is licensed under the standard Apple Terms of Use (EULA):

What’s New

Version 1.8.4

• You can now swipe in the empty area below the board to replay the game.
• Improved handling of player names in team games.

Ratings and Reviews

4.7 out of 5
96 Ratings

96 Ratings

G4rrett413 ,

One is the one must have Go app!

There is so much in the free version! I was just a at tournament and someone was complaining that their “free” game recording app would not save unless you bought it. Completely nuts! If only I had looked at SmartGo One before, I would have told my friend that the free download records and saves games, has extensive commenting tools, has computer play on small boards, and lets you read and interact with Go books. The FREE tutorial on playing Go is great. Any beginner would be pleased to have so much content in a single package.

For the serious student of Go there is so much when you subscribe to the Pro version for less than a dollar a month. 114,000 professional games and counting, a giant set of problems, and play against the computer on full size board.

I only purchased an iPad because I wanted a portable version of SmartGo software when I saw it being demonstrated in a cafeteria line at a US Go Congress many years ago. I am so pleased to see a new version come out.

kipbot ,

Terrific, all-around complete, Go application

It's been said elsewhere, but having a single app with problems, sample games, a handicapped computer opponent, AND that contains Go Books I've purchased over the years, sorted by difficulty is amazing.

Plus, I reported a small issue to the developer and heard back with a solve within hours.

If you're interested in Go, you should get it. If you're not yet interested in Go, you should be, and you should go get it!

jbrizz ,

Such a step down.

I’ve been running SmartGo apps since they started, mostly for the (GO) problems. I bought this new one just to support the developer. Not that I haven’t played a game against it si this review doesn’t apply to that piece.

The GO problems in this game are RIFE with mistakes that a good proofreading would catch. “White to kill”, then black lives and the message says “this exchange doesn’t help black”. Makes no sense. This after following the suggested moves because I thought I was confused. Or, you play the correct sequence but you play one more move than the software was expecting and the stone pictured on the upper right gets a red star indicating you’ve made a mistake. When it’s not a mistake, it’s what would be the correct next move. Probably 20% of the problems have something like these.

I’m a paid user, full version.

App Privacy

The developer, Smart Go, Inc., 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 Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Some in‑app purchases, including subscriptions, may be shareable with your family group when Family Sharing is enabled.

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