# Tangdou Go vs Read19

The clearest difference is in-app purchases: Tangdou Go at none against Read19's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Read19 sells 4 in-app purchases, starting at $6.99 per month. Tangdou Go asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Tangdou Go | Read19 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/tangdou-go/id6765623744/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 87.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free | — |
| Size | 340 MB | 16 MB |
| Requires iOS | 18.1 | **18.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [北京泽齐科技有限公司](https://appshunter.io/developer/1896014078) | [思程 陈](https://appshunter.io/developer/6786794222) |

## What reviewers say

### Tangdou Go

[App page](https://appshunter.io/ios/app/tangdou-go/id6765623744)

This app offers a comprehensive Go experience, allowing users to play online matches, practice against AI, and analyze their games. It provides tools for reviewing past games with detailed statistics and browsing game records to facilitate continuous improvement.

**Highlights:** Online Go matches, AI opponent challenges, AI game analysis, Win-rate charts, Game record browsing, Go club integration

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

**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 Tangdou Go free?

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

### Is Read19 free?

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

### Do Tangdou Go or Read19 have ads?

Neither Tangdou Go nor Read19 shows ads.

### Which is updated more often, Tangdou Go or Read19?

Tangdou Go ships an update every 2 days, and Read19 every 2 days. Most recently, Tangdou Go was updated on October 12, 2026 and Read19 on September 30, 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.*