# Chess Opening Trainer vs OpenChess

The clearest difference is rating: OpenChess at 5.0 against Chess Opening Trainer's 1.4. OpenChess also leads on ads (none vs shown) and update cadence (fortnightly vs every 4 months). Chess Opening Trainer's advantage is in-app purchases (none vs 10) and ratings volume (7 vs 2). On price and device support there is nothing between them.

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

OpenChess holds the better App Store score, 5.0 against 1.4. Both are backed by a comparable volume of ratings — 7 and 2 respectively.

Chess Opening Trainer ships an update every 4 months, OpenChess fortnightly. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Chess Opening Trainer | OpenChess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.4 (7 ratings)](https://appshunter.io/ios/app/chess-opening-trainer/id1106058837/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904/reviews)** |
| Number of ratings | **7** | 2 |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 33 MB | 57 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Propersh LLC](https://appshunter.io/developer/862587473) | [David Bryant](https://appshunter.io/developer/1559648957) |

## What reviewers say

### Chess Opening Trainer

[App page](https://appshunter.io/ios/app/chess-opening-trainer/id1106058837)

Learn chess openings with a simplified interface that analyzes millions of games. Moves are scored and ordered by popularity, making study straightforward. Test your knowledge with built-in quizzes.

**Highlights:** Simplified interface, Move scoring based on popularity, Analysis of over 2 million games, Straightforward study approach, Opening knowledge testing

**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 Chess Opening Trainer free?

Chess Opening Trainer 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, Chess Opening Trainer or OpenChess?

OpenChess is rated higher. Chess Opening Trainer averages 1.4 out of 5 from 7 ratings, while OpenChess averages 5.0 from 2 ratings.

### Do Chess Opening Trainer or OpenChess have ads?

Chess Opening Trainer shows ads; OpenChess does not.

### Which is updated more often, Chess Opening Trainer or OpenChess?

Chess Opening Trainer ships an update every 4 months, and OpenChess fortnightly. Most recently, Chess Opening Trainer was updated on October 24, 2026 and OpenChess on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*