# 围棋SGF阅读器 vs Go Master 2017

The clearest difference is in-app purchases: Go Master 2017 at none against 围棋SGF阅读器's 1. Go Master 2017 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price and device support there is nothing between them.

Both are free to download. 围棋SGF阅读器 sells 1 one-off in-app purchase. Go Master 2017 asks for nothing beyond the download.

围棋SGF阅读器 ships an update every 5 months, Go Master 2017 every 3 weeks. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 围棋SGF阅读器 | Go Master 2017 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/go-master-2017/id1256305602/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 95.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 24 MB | 6 MB |
| Requires iOS | 14.1 | **9.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [丽娜 夏](https://appshunter.io/developer/1084968330) | [Wenzhang Zhu](https://appshunter.io/developer/1244344456) |

## What reviewers say

### 围棋SGF阅读器

[App page](https://appshunter.io/ios/app/sgf/id1253931166)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| You will pay to remove ads. | $1.99 | one-time |


### Go Master 2017

[App page](https://appshunter.io/ios/app/go-master-2017/id1256305602)

This app offers a free library of Go problems for learners of all levels, from beginner to advanced. It provides detailed explanations, solutions, and variations for each problem, encouraging proactive learning with note-taking tools.

**Highlights:** Free Go problem library, Problems for all levels (40k to 9d), Covers all game stages, Proactive learning encouragement, Detailed explanations and solutions, Note-taking tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 围棋SGF阅读器 free?

围棋SGF阅读器 is free to download, with in-app purchases available.

### Is Go Master 2017 free?

Go Master 2017 is free to download, with no in-app purchases.

### Do 围棋SGF阅读器 or Go Master 2017 have ads?

围棋SGF阅读器 shows ads; Go Master 2017 does not.

### Which is updated more often, 围棋SGF阅读器 or Go Master 2017?

围棋SGF阅读器 ships an update every 5 months, and Go Master 2017 every 3 weeks. Most recently, 围棋SGF阅读器 was updated on October 11, 2026 and Go Master 2017 on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*