# Chess Prep Pro Openings vs Power Checkers

The clearest difference is in-app purchases: Power Checkers at none against Chess Prep Pro Openings's 3. Power Checkers also leads on ads (none vs shown) and update cadence (daily vs fortnightly). Chess Prep Pro Openings's advantage is iOS requirement (15.0 vs 17.6). On price and device support 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. Power Checkers asks for nothing beyond the download.

Chess Prep Pro Openings ships an update fortnightly, Power Checkers daily. The most recent releases landed on October 27, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Chess Prep Pro Openings | Power Checkers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 214 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tomasz Bogun](https://appshunter.io/developer/1502902123) | [Adi Khader](https://appshunter.io/developer/925553094) |

## 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 |


### Power Checkers

[App page](https://appshunter.io/ios/app/power-checkers/id6744624018)

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

**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 Power Checkers free?

Power Checkers is free to download, with no in-app purchases.

### Do Chess Prep Pro Openings or Power Checkers have ads?

Chess Prep Pro Openings shows ads; Power Checkers does not.

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

Chess Prep Pro Openings ships an update fortnightly, and Power Checkers daily. Most recently, Chess Prep Pro Openings was updated on October 27, 2026 and Power Checkers on October 6, 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.*