# Baduk Cap — SGF your Goban

> Capture Go board positions and convert to SGF with image recognition. (iPhone/iPad app by Thomas Breitling.)

- Source: https://appshunter.io/ios/app/baduk-cap/id896353586 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Breitling](https://appshunter.io/developer/896353589)
- Category: Utilities
- Price: $3.99 with in-app purchases
- Rating: 4.70/5 from 57 App Store ratings · 37 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 190 MB
- Languages: American English, German (Germany), Chinese (Simplified, China)
- Released: 2014-07-20
- Data updated: 2026-08-21
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/baduk-cap/id896353586/reviews.md

## What is Baduk Cap?

Baduk Cap lets you capture positions on your wooden Go board and easily transfer them to the SGF file format (Smart Game Format) using built-in image recognition.

Include game information such as player names, ranks, captured stones, and more. You can copy the SGF file to the clipboard, send it by email, save it to Dropbox, or export it to apps like EasyGo or SmartGo Kifu.

Determine the winner and exact score of your game with the scoring function (available as an in-app purchase). Supported rulesets are: Japanese, Chinese, AGA (Area), AGA (Territory), Ing, New Zealand.

Because Baduk Cap automatically recognizes corners of arbitrary size, you can capture problems from books and export them to apps like EasyGo, which offer the spaced repetition system as a study tool.

Live capture of your game while it is being played is also supported, featuring automatic move recognition and automatic photo capture, or photos triggered via a Bluetooth camera remote. (This feature is available as an in-app purchase.) External cameras and webcams (UVC-compatible) can be used with this feature. Focus fully on the game instead of interrupting your concentration with manual recording. If you wish, you can broadcast your live game to the Mastodon social network.

Baduk Cap supports board sizes of 9 x 9, 13 x 13,  and 19 x 19, and is optimized for both iPhone and iPad.


The following one-year subscriptions are available (Baduk Cap Pro):

• Scoring: Determine the winner and exact result of the game (tap the result for an explanation of how it was calculated)

• Game recording:  Live capture your game with automatic move recognition, automatic photos, or photos triggered by a Bluetooth camera remote. Broadcast to Mastodon is supported. (Includes all features of the Scoring subscription)

These subscriptions do not renew automatically. After one year, you will need to manually resubscribe if you wish to continue using the unlocked features.

You can also choose the 'Lifetime Pro' subscription, which is paid once and provides access to all app features forever.

Each of the Baduk Cap Pro subscriptions also unlocks the following features:

• Siri shortcuts: Take a picture of your Go board with a voice command of your choice

• Dark mode

• Alternate app icons

## Key features

- Image recognition for Go board capture
- SGF file export
- In-app scoring function
- Live game recording
- Support for multiple rulesets
- Siri shortcuts

## Pricing and in-app purchases

Base price: $3.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Scoring (1 year) | $0.99 | one-time |
| Live capture (1 year) | $2.99 | one-time |
| Small tip | $0.99 | one-time |
| Medium tip | $1.99 | one-time |
| Large tip | $3.99 | one-time |
| Very large tip | $9.99 | one-time |
| Lifetime Pro | $14.99 | one-time |


## Recent user reviews (10 of 37)

All indexed reviews: https://appshunter.io/ios/app/baduk-cap/id896353586/reviews.md

### 5/5 — Great app and responsive dev!

*2026-01-08, version 6.2.1*

This app is purpose built for a wide variety of useful situations regarding playing Go!

I think a lot of the functionality and processes in the app are well thought out, but the developer is open to feedback and improving it.

New Added that are incredibly useful and I think the app as well worth it’s one time purchase. If you play Go, download this for sure.  

NEW: On the iPads and iPhones with USB-C, you can now plug-in a USB-C WebCam, which is much lighter than mounting an iPad or iPhone for a live recording and SGF of your game.

### 5/5 — Board to SGF – PERFECT!

*2025-10-30*

Does what it says, and that very well! A treasure for every Go / Baduk / Weiqi lover.
Tut, was es sagt, und das sehr gut! Ein Schatz für alle, die Go /Baduk / Weiqi lieben.

### 5/5 — Love it

*2025-06-24, version 6.1.3*

I’m going to keep this short and sweet. Love this app.

### 5/5 — 一直用的挺好

*2025-04-05*

突然提示，无法进入程序。iPhone 13，iOS版本15.4.1
错误
当本应用程序首次启动，需要连接互联
网来准备机器学习（ML）模式。
重试

### 1/5 — Scoring is an in app purchase.

*2024-11-17*

This is a bait an switch. Scoring games is an in app purchase. This is NOT made clear in the app description. This is highly unethical marketing.

### 5/5 — Accurate and easy to use

*2024-10-16, version 6.1.1*

Exactly what I was looking for. Reasonable price for what it does. No data collection. Absolutely deserves 5 stars.

### 4/5 — Annoying to pay twice but works great

*2024-08-18, version 6.0.1*

I didn’t like that I had to pay £3.99 for the app itself before I even knew whether it would work, and then once inside it turned out I had to pay another £0.99/year subscription to score the game. (This knocked off a star in my review.) BUT the actual app works great, I’ve had no problems so far. 

 I’m a beginner and this takes a lot of stress out of figuring out scoring!

### 1/5 — Poor value for money.

*2024-06-30, version 6.0.1*

Recognition is poor. Basic scoring should not require a subscription in addition to app purchase.

### 1/5 — Scam

*2024-05-27*

I paid $3.99 for this app thinking that it can do what its advertised, but to use the functions you’ll have to pay extra money. So I paid $3.99 just to install the app that does nothing unless I pay more.

### 5/5 — Incredible Technology!

*2023-11-08, version 6.0*

I just subscribed to get the live capture and it’s astounding!!

## Frequently asked questions about Baduk Cap

### What does Baduk Cap do?

Baduk Cap uses image recognition to capture positions on a physical Go board and convert them into the SGF (Smart Game Format). It allows you to include game details, export files, and even offers features like scoring and live game recording.

### What are the key features of Baduk Cap?

Key features include automatic image recognition of Go board positions, conversion to SGF format, inclusion of game information, and export options to various apps. Optional in-app purchases unlock advanced features like scoring and live game recording.

### How much does Baduk Cap cost?

The app is free to download and use with basic features. Advanced functionalities like scoring and live game recording are available through one-year subscriptions (Baduk Cap Pro) or a one-time 'Lifetime Pro' purchase.

### What Go board sizes and rulesets are supported?

The app supports board sizes of 9x9, 13x13, and 19x19. It is compatible with Japanese, Chinese, AGA (Area), AGA (Territory), Ing, and New Zealand rulesets.

### How can I use Baduk Cap for studying Go problems?

You can capture Go problems from books using the app's image recognition. These captured positions can then be exported to other Go apps like EasyGo, which utilize spaced repetition systems for effective study.

## Version history (last 5 releases)

### 6.2.4 — 2026-04-18

Improvement of Broadcast to Mastodon

### 6.2.3 — 2026-04-17

Improved recognition of black and white stones (requires iOS / iPadOS 17 or later)

### 6.2.2 — 2026-04-03

User interface improvements

### 6.2.1 — 2026-01-03

Improved visibility of grid lines when capturing board corners

### 6.2 — 2025-12-31

Support for external USB cameras and webcams (UVC compatible, iOS / iPadOS 17.0)

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## More apps by Thomas Breitling

- [Brain Waves - Magic Trick](https://appshunter.io/ios/app/brain-waves-magic-trick/id1583546052)

All apps by Thomas Breitling: https://appshunter.io/developer/896353589

## Related topics

[baduk cap](https://appshunter.io/ios/topics/baduk-cap) · [thomas breitling](https://appshunter.io/ios/topics/thomas-breitling)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-21.*