# Chess Prep Pro Openings vs Endgame AI

The clearest difference is in-app purchases: Endgame AI at none against Chess Prep Pro Openings's 3. Endgame AI also leads on ads (none vs shown) and review sentiment (100% vs 75%). Chess Prep Pro Openings's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Chess Prep Pro Openings sells 3 in-app purchases, starting at $3.99 per month. Endgame AI asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Chess Prep Pro Openings against 4.6 for Endgame AI. Both are backed by a comparable volume of ratings — 22 and 31 respectively. Written reviews are what separate them: 75% of Chess Prep Pro Openings's written reviews are positive against 100% of Endgame AI's.

Chess Prep Pro Openings ships an update fortnightly, Endgame AI every 3 weeks. Both last shipped on October 30, 2026.

## The numbers

| Metric | Chess Prep Pro Openings | Endgame AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews) | **[4.6 (31 ratings)](https://appshunter.io/ios/app/endgame-ai/id6755304651/reviews)** |
| Number of ratings | 22 | **31** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 214 MB | 162 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Bogun](https://appshunter.io/developer/1502902123) | [Endgame Chess](https://appshunter.io/developer/1853027984) |

## What reviewers say

### Chess Prep Pro Openings

[App page](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475)

Master chess openings by building custom repertoires and training your memory. Analyze opponent moves, discover blind spots, and utilize an advanced engine for in-depth preparation. Expand your knowledge with downloadable repertoires and import/export PGNs.

**Highlights:** Custom chess opening repertoires, Repertoire training and memory sharpening, Blind spot finder against player games, Chess openings player database, Advanced StockFish engine analysis, Downloadable and importable repertoires

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly premium subscription | $3.99 | per month |
| Yearly premium | $24.99 | per year |
| Lifetime Premium | $59.99 | one-time |


### Endgame AI

[App page](https://appshunter.io/ios/app/endgame-ai/id6755304651)

An innovative online platform for chess players of all levels. Offers diverse game modes, daily tournaments, and advanced tools for game analysis and improvement. Connect with players globally and sharpen your skills against computer bots.

**Highlights:** Diverse time controls (Bullet, Blitz, Classical), Daily tournaments, Global matchmaking, Computer bot practice, Free game review and analysis, Performance and accuracy estimation, Board editor and PGN import

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Prep Pro Openings free?

Chess Prep Pro Openings is free to download, with in-app purchases available.

### Is Endgame AI free?

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

### Which has better reviews, Chess Prep Pro Openings or Endgame AI?

Endgame AI is rated higher. Chess Prep Pro Openings averages 4.5 out of 5 from 22 ratings, while Endgame AI averages 4.6 from 31 ratings.

### Do Chess Prep Pro Openings or Endgame AI have ads?

Chess Prep Pro Openings shows ads; Endgame AI does not.

### Which is updated more often, Chess Prep Pro Openings or Endgame AI?

Chess Prep Pro Openings ships an update fortnightly, and Endgame AI every 3 weeks. Most recently, Chess Prep Pro Openings was updated on October 30, 2026 and Endgame AI on October 30, 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.*