# Grandmaster Chess vs ChessPrep

The clearest difference is ads: ChessPrep at none against Grandmaster Chess's shown. ChessPrep also leads on update cadence (every 3 days vs every 8 days) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Grandmaster Chess sells 4 in-app purchases, starting at $1.99 per month 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.

Grandmaster Chess ships an update every 8 days, ChessPrep every 3 days. The most recent releases landed on September 8, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | Grandmaster Chess | ChessPrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chessprep/id6469808213/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 days | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 69 MB | 109 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NABENDU SINHA](https://appshunter.io/developer/320218106) | [Stephen Papadatos](https://appshunter.io/developer/1712680449) |

## What reviewers say

### Grandmaster Chess

[App page](https://appshunter.io/ios/app/grandmaster-chess-play-as-gm/id6446227773)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly Subscription | $1.99 | per month |
| Yearly Pro Subscription | $19.99 | per year |
| Remove Ads | $1.99 | one-time |
| Magnus Pack | $1.99 | 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 Grandmaster Chess free?

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

### Is ChessPrep free?

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

### Do Grandmaster Chess or ChessPrep have ads?

Grandmaster Chess shows ads; ChessPrep does not.

### Which is updated more often, Grandmaster Chess or ChessPrep?

Grandmaster Chess ships an update every 8 days, and ChessPrep every 3 days. Most recently, Grandmaster Chess was updated on September 8, 2026 and ChessPrep on June 11, 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.*