# Chess Time vs sudoku

The clearest difference is in-app purchases: sudoku at none against Chess Time's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Chess Time sells 3 in-app purchases, starting at $1.99 per month. sudoku asks for nothing beyond the download.

Chess Time ships an update every 10 days, sudoku every 9 days. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Chess Time | sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.7K ratings)](https://appshunter.io/ios/app/chess-time-multiplayer-chess/id455602152/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 86.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 10 days | **Every 9 days** |
| Monetization | Freemium | — |
| Size | 42 MB | 139 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Haptic Apps LLC](https://appshunter.io/developer/421590139) | [Hansang Oh](https://appshunter.io/developer/1871981671) |

## What reviewers say

### Chess Time

[App page](https://appshunter.io/ios/app/chess-time-multiplayer-chess/id455602152)

Engage in online chess matches with friends or players worldwide. This app supports correspondence play with extended move times and offers features like in-game chat and customizable themes. Track your progress with an auto-calculated ELO rating.

**Highlights:** Online correspondence chess, Play with friends, Global player matchmaking, In-game chat, Customizable chess sets and themes, Auto-calculated ELO rating, PGN export

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Chess Time Premium | $1.99 | per month |
| Chess Time Premium - Annual | $17.99 | per year |
| IOS Chess Time Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🌍 Cross-platform play
- 📊 Detailed player stats and rankings
- 💬 In-game chat functionality
- 🕰️ Flexible time controls for games

**What reviewers complain about**

- 🐛 Occasional glitches and bugs
- 🔍 Limited customization options
- 💰 Ads can be intrusive
- 🔒 Lack of robust anti-cheat measures
- 🖥️ Outdated or basic user interface

**Reported bugs**

- Game incorrectly declaring draws on checkmate
- Inability to castle or move pieces in certain situations
- Notification issues across different devices

**Requested features**

- Ability to invite friends to watch ongoing games
- Option to disable move analysis for rated games
- Faster move processing and real-time gameplay
- More diverse chess piece and board designs
- In-app purchase to remove ads permanently


### sudoku

[App page](https://appshunter.io/ios/app/sudoku-100/id6758285339)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chess Time free?

Chess Time is free to download, with in-app purchases available.

### Is sudoku free?

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

### Do Chess Time or sudoku have ads?

Both Chess Time and sudoku show ads.

### Which is updated more often, Chess Time or sudoku?

Chess Time ships an update every 10 days, and sudoku every 9 days. Most recently, Chess Time was updated on October 21, 2026 and sudoku on October 14, 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.*