# Digital Chess Clock vs Chess Prep Pro Openings

The clearest difference is rating: Digital Chess Clock at 5.0 against Chess Prep Pro Openings's 4.5. Digital Chess Clock also leads on in-app purchases (none vs 3) and ads (none vs shown). Chess Prep Pro Openings's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (22 vs 2). 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. Digital Chess Clock asks for nothing beyond the download.

Digital Chess Clock holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Chess Prep Pro Openings has 22 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 89% of Digital Chess Clock's written reviews are positive against 75% of Chess Prep Pro Openings's.

Digital Chess Clock ships an update every 4 months, Chess Prep Pro Openings fortnightly. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Digital Chess Clock | Chess Prep Pro Openings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/digital-chess-clock/id386260074/reviews)** | [4.5 (22 ratings)](https://appshunter.io/ios/app/chess-prep-pro-openings/id1606629475/reviews) |
| Number of ratings | 2 | **22** |
| Positive reviews | **88.9% of reviews** | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 214 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Philip Bevan](https://appshunter.io/developer/363735530) | [Tomasz Bogun](https://appshunter.io/developer/1502902123) |

## What reviewers say

### Digital Chess Clock

[App page](https://appshunter.io/ios/app/digital-chess-clock/id386260074)

This application transforms your iPhone into a digital chess clock. It displays move counts and remaining time, with customizable settings for delays and sound. Easily adjust clock times and manage game flow with intuitive pause and reset functions.

**Highlights:** Digital chess clock functionality, Displays move counts and remaining time, Customizable delay types (None, Bronstein, Fisher), Adjustable clock times, Sound volume control, Pause and reset functions

**Features:** macOS Compatibility

**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 Digital Chess Clock free?

Digital Chess Clock 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, Digital Chess Clock or Chess Prep Pro Openings?

Digital Chess Clock is rated higher. Digital Chess Clock averages 5.0 out of 5 from 2 ratings, while Chess Prep Pro Openings averages 4.5 from 22 ratings.

### Do Digital Chess Clock or Chess Prep Pro Openings have ads?

Chess Prep Pro Openings shows ads; Digital Chess Clock does not.

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

Digital Chess Clock ships an update every 4 months, and Chess Prep Pro Openings fortnightly. Most recently, Digital Chess Clock was updated on October 16, 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.*