# Brain Trainer vs OpenChess

The clearest difference is in-app purchases: Brain Trainer at none against OpenChess's 10. Brain Trainer also leads on iOS requirement (9.0 vs 12.0). On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Brain Trainer against 5.0 for OpenChess. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Brain Trainer ships an update every 3 weeks, OpenChess fortnightly. The most recent releases landed on October 12, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Brain Trainer | OpenChess |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/brain-trainer-cognitive-game/id1037477449/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/openchess-an-opening-explorer/id6504700904/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 83 MB | 57 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [samona limited](https://appshunter.io/developer/1453997195) | [David Bryant](https://appshunter.io/developer/1559648957) |

## What reviewers say

### Brain Trainer

[App page](https://appshunter.io/ios/app/brain-trainer-cognitive-game/id1037477449)

Sharpen your memory and boost your brain strength with this engaging game. It features progressively challenging levels and intuitive gameplay designed for the whole family. Remember patterns and repeat them to test your cognitive abilities.

**Highlights:** Boost brain strength, Sharpen memory power, Pattern recall challenges, Progressive difficulty levels, Simple and intuitive interface, Fun for the entire family

**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 Brain Trainer free?

Brain 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, Brain Trainer or OpenChess?

Brain Trainer and OpenChess are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Brain Trainer or OpenChess have ads?

Neither Brain Trainer nor OpenChess shows ads.

### Which is updated more often, Brain Trainer or OpenChess?

Brain Trainer ships an update every 3 weeks, and OpenChess fortnightly. Most recently, Brain Trainer was updated on October 12, 2026 and OpenChess on October 15, 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.*