# Chess Endgame Trainer vs Openings Mastermind

The clearest difference is rating: Openings Mastermind at 4.3 against Chess Endgame Trainer's 3.0. Openings Mastermind also leads on ads (none vs shown) and monetization model (free vs ad-supported). Chess Endgame Trainer's advantage is iOS requirement (9.0 vs 18.6). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Openings Mastermind holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 6 and 6 respectively. Written reviews complicate that: 57% of Chess Endgame Trainer's written reviews are positive against 50% of Openings Mastermind's, so the app with the better star average is not the one people write more warmly about.

Chess Endgame Trainer ships an update monthly, Openings Mastermind fortnightly. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Chess Endgame Trainer | Openings Mastermind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (6 ratings)](https://appshunter.io/ios/app/chess-endgame-trainer/id1066381775/reviews) | **[4.3 (6 ratings)](https://appshunter.io/ios/app/openings-mastermind/id6448386251/reviews)** |
| Number of ratings | 6 | 6 |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Ad-supported | **Free** |
| Size | 56 MB | 88 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Propersh LLC](https://appshunter.io/developer/862587473) | [Christian Heise](https://appshunter.io/developer/1632898424) |

## What reviewers say

### Chess Endgame Trainer

[App page](https://appshunter.io/ios/app/chess-endgame-trainer/id1066381775)

Practice chess endgames with a vast collection of puzzles. Solve challenges and verify solutions with the computer to quickly improve your chess skills without needing a partner or tutor.

**Highlights:** Vast endgame puzzle collection, Easy-to-use interface, Solve puzzles and verify with computer, Study computer-provided solutions, Improve chess skills efficiently

**Features:** macOS Compatibility

**In-app purchases:** none


### Openings Mastermind

[App page](https://appshunter.io/ios/app/openings-mastermind/id6448386251)

Master chess openings with this app. Import studies, explore with advanced engines, and practice specific lines through repetition. Track your progress and improve your game.

**Highlights:** Import Lichess Studies or PGNs, Explore openings with Stockfish 15, Practice openings by repetition, Smart practice queue, Track learning progress

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Endgame Trainer free?

Chess Endgame Trainer is free to download, with no in-app purchases.

### Is Openings Mastermind free?

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

### Which has better reviews, Chess Endgame Trainer or Openings Mastermind?

Openings Mastermind is rated higher. Chess Endgame Trainer averages 3.0 out of 5 from 6 ratings, while Openings Mastermind averages 4.3 from 6 ratings.

### Do Chess Endgame Trainer or Openings Mastermind have ads?

Chess Endgame Trainer shows ads; Openings Mastermind does not.

### Which is updated more often, Chess Endgame Trainer or Openings Mastermind?

Chess Endgame Trainer ships an update monthly, and Openings Mastermind fortnightly. Most recently, Chess Endgame Trainer was updated on October 3, 2026 and Openings Mastermind on October 7, 2026.

---

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