# ChessBased vs ChessMaster

The clearest difference is in-app purchases: ChessMaster at none against ChessBased's 1. ChessMaster also leads on iOS requirement (13.0 vs 17.0). ChessBased's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. ChessBased sells 1 one-off in-app purchase. ChessMaster asks for nothing beyond the download.

ChessBased ships an update every 2 weeks, ChessMaster weekly. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ChessBased | ChessMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/chessbased-stockfish-19/id6773557320/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 27 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ENVISIONAIRY LLC](https://appshunter.io/developer/1605281065) | [HYO JONG YOO](https://appshunter.io/developer/1879487756) |

## What reviewers say

### ChessBased

[App page](https://appshunter.io/ios/app/chessbased-stockfish-19/id6773557320)

Analyze chess openings with millions of games and advanced engine evaluations. Prepare like a grandmaster with a seamless interface, win-loss statistics, and move-by-move exploration. Save your favorite lines for later study on your iPhone or iPad.

**Highlights:** Millions of games database, Stockfish 18 engine evaluations, Win-loss statistics, Move-by-move exploration, Save favorite lines, Seamless UI

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessBased: Stockfish 18 | $4.99 | one-time |


### ChessMaster

[App page](https://appshunter.io/ios/app/chessmaster-ai-chess/id6775846082)

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

**In-app purchases:** none


## Frequently asked questions

### Is ChessBased free?

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

### Is ChessMaster free?

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

### Do ChessBased or ChessMaster have ads?

ChessMaster shows ads; ChessBased does not.

### Which is updated more often, ChessBased or ChessMaster?

ChessBased ships an update every 2 weeks, and ChessMaster weekly. Most recently, ChessBased was updated on October 31, 2026 and ChessMaster on October 25, 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.*