# Chess Middlegame III vs ChessPrep

The clearest difference is rating: Chess Middlegame III at 4.9 against ChessPrep's 3.0. Chess Middlegame III also leads on ratings volume (14 vs 2) and iOS requirement (8.0 vs 12.0). ChessPrep's advantage is update cadence (every 3 days vs every 4 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Chess Middlegame III sells 1 one-off in-app purchase and ChessPrep sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Chess Middlegame III holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Chess Middlegame III has 14 ratings behind it against 2, so its average is the more settled of the two.

Chess Middlegame III ships an update every 4 months, ChessPrep every 3 days. The most recent releases landed on October 21, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Chess Middlegame III | ChessPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/chess-middlegame-iii/id1130245794/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/chessprep/id6469808213/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 44 MB | 109 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chess King](https://appshunter.io/developer/1096660597) | [Stephen Papadatos](https://appshunter.io/developer/1712680449) |

## What reviewers say

### Chess Middlegame III

[App page](https://appshunter.io/ios/app/chess-middlegame-iii/id1130245794)

Master chess middlegame strategies with interactive lessons and practice problems. This app offers theoretical explanations and tactical exercises to improve your game, with features like hints, refutations, and ELO rating tracking.

**Highlights:** Interactive theoretical lessons, Practice problems with hints and refutations, ELO rating tracking, Play positions against the computer, Structured table of contents, Offline play

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full course | $7.99 | one-time |


### ChessPrep

[App page](https://appshunter.io/ios/app/chessprep/id6469808213)

Enhance your chess strategy with a powerful companion app. Build your repertoire from grandmaster moves, analyze opponent responses, and master tactics using a strong chess engine and spaced repetition.

**Highlights:** Build repertoire from grandmaster moves, Analyze opponent responses by elo, Stockfish 16 chess engine, Spaced repetition system, Position analysis and variation calculation

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChessButler Monthly Sub | $0.99 | per month |
| ChessButler Yearly Sub | $9.99 | per year |
| ChessButler Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is Chess Middlegame III free?

Chess Middlegame III is free to download, with in-app purchases available.

### Is ChessPrep free?

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

### Which has better reviews, Chess Middlegame III or ChessPrep?

Chess Middlegame III is rated higher. Chess Middlegame III averages 4.9 out of 5 from 14 ratings, while ChessPrep averages 3.0 from 2 ratings.

### Do Chess Middlegame III or ChessPrep have ads?

Neither Chess Middlegame III nor ChessPrep shows ads.

### Which is updated more often, Chess Middlegame III or ChessPrep?

Chess Middlegame III ships an update every 4 months, and ChessPrep every 3 days. Most recently, Chess Middlegame III was updated on October 21, 2026 and ChessPrep on October 16, 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.*