# Primus Chess Lite vs OpenChess

The clearest difference is rating: OpenChess at 5.0 against Primus Chess Lite's 4.3. OpenChess also leads on update cadence (fortnightly vs every 9 months). Primus Chess Lite's advantage is in-app purchases (none vs 10) and ratings volume (23 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. OpenChess sells 10 one-off in-app purchases. Primus Chess Lite asks for nothing beyond the download.

OpenChess holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Primus Chess Lite has 23 ratings behind it against 2, so its average is the more settled of the two.

Primus Chess Lite ships an update every 9 months, OpenChess fortnightly. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Primus Chess Lite | OpenChess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (23 ratings)](https://appshunter.io/ios/app/primus-chess-lite/id1108509545/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904/reviews)** |
| Number of ratings | **23** | 2 |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 78 MB | 57 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DBRG Ltd.](https://appshunter.io/developer/964613425) | [David Bryant](https://appshunter.io/developer/1559648957) |

## What reviewers say

### Primus Chess Lite

[App page](https://appshunter.io/ios/app/primus-chess-lite/id1108509545)

This chess engine is designed for intermediate players, mimicking human play with strategic depth and occasional blunders. It offers local multiplayer options and practice modes.

**Highlights:** Human-like chess engine, Intermediate player focus (up to 2000 Elo), Local multiplayer (Bluetooth/LAN), Tabletop virtual chessboard mode, Five skill levels, Selected puzzles and practice levels, Mini-tournament mode

**Features:** macOS Compatibility

**In-app purchases:** none


### OpenChess

[App page](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904)

Master chess openings by playing against a specialized AI. Explore specific defenses or move sequences, and gain insights into positional advantages and piece values. Improve your game from the very first moves.

**Highlights:** Learn specific chess openings, Play against AI focused on opening lines, Analyze positional advantages, Evaluate piece values and mobility, Understand pawn structure, Track defended and attacked pieces

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tarrasch Defense Opening | $0.99 | one-time |
| Trompowsky Attack Opening | $0.99 | one-time |
| Scandinavian Defense Opening | $0.99 | one-time |
| Three Knights Opening | $0.99 | one-time |
| Zukertort Opening | $0.99 | one-time |
| Van't Kruijs Opening | $0.99 | one-time |
| Vienna Game Opening | $0.99 | one-time |
| Ware Opening | $0.99 | one-time |
| Opening Explorer | $4.99 | one-time |
| OpenChess Premium | $19.99 | one-time |


## Frequently asked questions

### Is Primus Chess Lite free?

Primus Chess Lite is free to download, with no in-app purchases.

### Is OpenChess free?

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

### Which has better reviews, Primus Chess Lite or OpenChess?

OpenChess is rated higher. Primus Chess Lite averages 4.3 out of 5 from 23 ratings, while OpenChess averages 5.0 from 2 ratings.

### Do Primus Chess Lite or OpenChess have ads?

Neither Primus Chess Lite nor OpenChess shows ads.

### Which is updated more often, Primus Chess Lite or OpenChess?

Primus Chess Lite ships an update every 9 months, and OpenChess fortnightly. Most recently, Primus Chess Lite was updated on November 2, 2026 and OpenChess on October 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.*