# ChessClock vs 100 Squares

The clearest difference is review sentiment: 100 Squares at 100% against ChessClock's 38%. 100 Squares also leads on ads (none vs shown) and monetization model (free vs ad-supported). ChessClock's advantage is update cadence (every 8 months vs every 21 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ChessClock ships an update every 8 months, 100 Squares every 21 months. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | ChessClock | 100 Squares |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/100-squares/id289002920/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 8 months** | Every 21 months |
| Monetization | Ad-supported | **Free** |
| Size | 5 MB | 1 MB |
| Requires iOS | 15.4 | **8.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aardustry GmbH](https://appshunter.io/developer/1674069248) | [Jean-Francois Pautex](https://appshunter.io/developer/286566990) |

## What reviewers say

### ChessClock

[App page](https://appshunter.io/ios/app/chessclock/id287026942)

This app provides a digital and analog chess clock with customizable time controls, including Fischer, Bronstein, and USCF delay modes. It features a classic skeuomorphic design and highlights the active clock for easy tracking during games.

**Highlights:** Dual clock display, Fischer, Bronstein, USCF delay modes, Analog and digital modes, Independent clock settings, Active clock highlighting, Skeuomorphic design

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

**In-app purchases:** none


### 100 Squares

[App page](https://appshunter.io/ios/app/100-squares/id289002920)

Fill a 100-box grid by strategically placing numbers, leaving specific gaps horizontally, vertically, and diagonally. Compete with others by checking and adding your scores to a network leaderboard. Enjoy a simple yet challenging puzzle experience.

**Highlights:** Fill 100 boxes, Strategic placement rules, Help mode available, Undo moves, Network scores and comments, Leaderboard functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ChessClock free?

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

### Is 100 Squares free?

100 Squares is free to download, with no in-app purchases.

### Do ChessClock or 100 Squares have ads?

ChessClock shows ads; 100 Squares does not.

### Which is updated more often, ChessClock or 100 Squares?

ChessClock ships an update every 8 months, and 100 Squares every 21 months. Most recently, ChessClock was updated on October 16, 2026 and 100 Squares 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.*