# OpeningTree vs The Chess Clock App

The clearest difference is review sentiment: OpeningTree at 83% against The Chess Clock App's 33%. OpeningTree also leads on in-app purchases (none vs 2) and ads (none vs shown). The Chess Clock App's advantage is price (Free vs $0.99) and rating (4.6 vs 4.4). On ratings volume, device support and iOS requirement there is nothing between them.

The Chess Clock App is free to download; OpeningTree costs $0.99 up front. The Chess Clock App sells 2 in-app purchases, starting at $2.99 per month. OpeningTree asks for nothing beyond the download.

The Chess Clock App holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 31 and 31 respectively. Written reviews complicate that: 83% of OpeningTree's written reviews are positive against 33% of The Chess Clock App's, so the app with the better star average is not the one people write more warmly about.

OpeningTree ships an update every 2 months, The Chess Clock App every 36 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | OpeningTree | The Chess Clock App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.4 (31 ratings)](https://appshunter.io/ios/app/openingtree-chess-openings/id882614935/reviews) | **[4.6 (31 ratings)](https://appshunter.io/ios/app/the-chess-clock-app/id1631785302/reviews)** |
| Number of ratings | 31 | 31 |
| Positive reviews | **83.3% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 36 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 52 MB | 37 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Adams](https://appshunter.io/developer/743520896) | [Vida Apps Incorporated](https://appshunter.io/developer/1580682451) |

## What reviewers say

### OpeningTree

[App page](https://appshunter.io/ios/app/openingtree-chess-openings/id882614935)

Explore chess openings with an extensive opening book and engine analysis. Analyze your games, create custom lines, and study moves from high-rated players. Accessible for visually impaired users.

**Highlights:** Extensive opening book, Crafty engine analysis, Load and analyze PGN games, Create custom move lines, Accessible for visually impaired, Mark moves with colors, Save board to PGN

**Features:** Vision Pro support

**In-app purchases:** none


### The Chess Clock App

[App page](https://appshunter.io/ios/app/the-chess-clock-app/id1631785302)

This app provides a customizable timer for various board games, including chess and shogi. It supports multiple time control modes like Sudden Death, Fischer, Byoyomi, and Handicap, allowing for individual player settings. Ideal for 2-4 player matches.

**Highlights:** Multiple time control modes, Fischer Mode support, Byoyomi Mode support, Sudden Death Mode support, Handicap time control, Customizable per-player settings, Supports 2-4 player games

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan - 1 Month | $2.99 | per month |
| Premium Plan - 1 Year | $29.99 | per year |


## Frequently asked questions

### Is OpeningTree free?

OpeningTree costs $0.99, with no in-app purchases.

### Is The Chess Clock App free?

The Chess Clock App is free to download, with in-app purchases available.

### Which has better reviews, OpeningTree or The Chess Clock App?

The Chess Clock App is rated higher. OpeningTree averages 4.4 out of 5 from 31 ratings, while The Chess Clock App averages 4.6 from 31 ratings.

### Do OpeningTree or The Chess Clock App have ads?

The Chess Clock App shows ads; OpeningTree does not.

### Which is updated more often, OpeningTree or The Chess Clock App?

OpeningTree ships an update every 2 months, and The Chess Clock App every 36 months. Most recently, OpeningTree was updated on October 24, 2026 and The Chess Clock App on October 24, 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.*