# Chess Only vs Chess Prep Pro Openings

The clearest difference is rating: Chess Prep Pro Openings at 4.5 against Chess Only's 4.0. Chess Only's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, review sentiment, 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. Chess Only asks for nothing beyond the download.

Chess Prep Pro Openings holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 29 and 22 respectively. Written reviews split almost evenly too, at 75% and 75% positive.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Chess Only | Chess Prep Pro Openings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (29 ratings)](https://appshunter.io/ios/app/chess-only/id1569045693/reviews) | **[4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews)** |
| Number of ratings | **29** | 22 |
| Positive reviews | 75.0% of reviews | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 214 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Young-Jo Song](https://appshunter.io/developer/1569045695) | [Tomasz Bogun](https://appshunter.io/developer/1502902123) |

## What reviewers say

### Chess Only

[App page](https://appshunter.io/ios/app/chess-only/id1569045693)

Enhance your chess skills with instant analysis and tactical puzzles. This app offers a human-like engine with adjustable difficulty and an evaluation bar with blunder alerts. Play and study without distractions, with features like move trial and PGN saving.

**Highlights:** Instant game analysis, Tactical puzzles, Human-like engine (Elo 400-2500), Evaluation bar with blunder alert, Try moves out of game play, PGN file saving, Over-the-board mode

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

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Chess Only free?

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

### Is Chess Prep Pro Openings free?

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

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

Chess Prep Pro Openings is rated higher. Chess Only averages 4.0 out of 5 from 29 ratings, while Chess Prep Pro Openings averages 4.5 from 22 ratings.

### Do Chess Only or Chess Prep Pro Openings have ads?

Chess Prep Pro Openings shows ads; Chess Only does not.

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

Chess Only ships an update fortnightly, and Chess Prep Pro Openings fortnightly. Most recently, Chess Only was updated on October 20, 2026 and Chess Prep Pro Openings on October 19, 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.*