# OpenMate vs ChessBased

The clearest difference is rating: OpenMate at 5.0 against ChessBased's 4.0. OpenMate also leads on in-app purchases (none vs 1) and update cadence (every 6 days vs every 2 weeks). On price, review sentiment, ads and device support there is nothing between them.

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

OpenMate holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: OpenMate has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

OpenMate ships an update every 6 days, ChessBased every 2 weeks. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | OpenMate | ChessBased |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/openmate/id6760992582/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/chessbased-stockfish-19/id6773557320/reviews) |
| Number of ratings | **6** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 20 MB | 2 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RAMINE ROANE](https://appshunter.io/developer/1887179395) | [ENVISIONAIRY LLC](https://appshunter.io/developer/1605281065) |

## What reviewers say

### OpenMate

[App page](https://appshunter.io/ios/app/openmate/id6760992582)

Master chess openings and play against a powerful engine with integrated coaching. This app offers a private, offline experience with visual guidance and strategy tips to improve your game. Enjoy uninterrupted play with no ads or distractions.

**Highlights:** Strong, fast chess engine, Fully offline functionality, Visual coaching with move suggestions, Built-in opening knowledge, Strategy tips and explanations, Play at your own pace, no clock, Undo moves freely

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is OpenMate free?

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

### Is ChessBased free?

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

### Which has better reviews, OpenMate or ChessBased?

OpenMate is rated higher. OpenMate averages 5.0 out of 5 from 6 ratings, while ChessBased averages 4.0 from 1 ratings.

### Do OpenMate or ChessBased have ads?

Neither OpenMate nor ChessBased shows ads.

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

OpenMate ships an update every 6 days, and ChessBased every 2 weeks. Most recently, OpenMate was updated on September 26, 2026 and ChessBased on October 12, 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.*