# SakataGo vs Read19

The clearest difference is price: Read19 at Free against SakataGo's $8.99. Read19 also leads on update cadence (every 2 days vs every 5 weeks). SakataGo's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

Read19 is free to download; SakataGo costs $8.99 up front. Read19 sells 4 in-app purchases, starting at $6.99 per month. SakataGo asks for nothing beyond the download.

SakataGo ships an update every 5 weeks, Read19 every 2 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | SakataGo | Read19 |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sakatago/id6755191755/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Monetization | Paid | — |
| Size | 554 MB | 16 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Torsten Hefer](https://appshunter.io/developer/1852500527) | [思程 陈](https://appshunter.io/developer/6786794222) |

## What reviewers say

### SakataGo

[App page](https://appshunter.io/ios/app/sakatago/id6755191755)

Play the ancient game of Go offline with a powerful AI engine. Analyze your games, get hints, and adjust AI strength from beginner to superhuman levels. Features realistic board designs and SGF file support for easy sharing and storage.

**Highlights:** Offline KataGo AI engine, Adjustable AI strength, Game analysis and hints, Realistic board and stone design, SGF file support, Multiple board sizes

**Features:** macOS Compatibility

**In-app purchases:** none


### Read19

[App page](https://appshunter.io/ios/app/read19/id6799068030)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KataGo Review Plus | $6.99 | per month |
| 300K Visits | $1.99 | one-time |
| 1M Visits | $3.99 | one-time |
| 3M Visits | $9.99 | one-time |


## Frequently asked questions

### Is SakataGo free?

SakataGo costs $8.99, with no in-app purchases.

### Is Read19 free?

Read19 is free to download, with in-app purchases available.

### Do SakataGo or Read19 have ads?

Neither SakataGo nor Read19 shows ads.

### Which is updated more often, SakataGo or Read19?

SakataGo ships an update every 5 weeks, and Read19 every 2 days. Most recently, SakataGo was updated on October 24, 2026 and Read19 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.*