# 围棋SGF阅读器 vs 围棋之书

The clearest difference is ads: 围棋之书 at none against 围棋SGF阅读器's shown. 围棋之书 also leads on update cadence (monthly vs every 5 months). 围棋SGF阅读器's advantage is iOS requirement (14.1 vs 16.6). On price, in-app purchases 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 and 围棋之书 sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

围棋SGF阅读器 ships an update every 5 months, 围棋之书 monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 围棋SGF阅读器 | 围棋之书 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1644286562/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Monthly** |
| Size | 24 MB | 72 MB |
| Requires iOS | **14.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [丽娜 夏](https://appshunter.io/developer/1084968330) | [文艺 邓](https://appshunter.io/developer/1644286564) |

## 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 |


### 围棋之书

[App page](https://appshunter.io/ios/app/id1644286562)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 连续包月 | $2.99 | per month |
| 连续包年 | $29.99 | per year |
| 永久会员 | $24.99 | one-time |


## 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 围棋之书 free?

围棋之书 is free to download, with in-app purchases available.

### Do 围棋SGF阅读器 or 围棋之书 have ads?

围棋SGF阅读器 shows ads; 围棋之书 does not.

### Which is updated more often, 围棋SGF阅读器 or 围棋之书?

围棋SGF阅读器 ships an update every 5 months, and 围棋之书 monthly. Most recently, 围棋SGF阅读器 was updated on November 2, 2026 and 围棋之书 on November 3, 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.*