# Sudoku· vs Zendoku

The clearest difference is price: Sudoku· at Free against Zendoku's $0.99. Sudoku· also leads on rating (4.7 vs 4.0) and review sentiment (66% vs 33%). Zendoku's advantage is ads (none vs shown). On update cadence, in-app purchases and device support there is nothing between them.

Sudoku· is free to download; Zendoku costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sudoku· holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Sudoku· has 17K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 66% of Sudoku·'s written reviews are positive against 33% of Zendoku's.

Sudoku· ships an update every 2 months, Zendoku every 3 months. The most recent releases landed on November 7, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Sudoku· | Zendoku |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.7 (17K ratings)](https://appshunter.io/ios/app/sudoku/id839681682/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/zendoku/id934571977/reviews) |
| Number of ratings | **17K** | 2 |
| Positive reviews | **65.7% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Ad-supported** | Paid |
| Size | 42 MB | 61 MB |
| Requires iOS | **13** | 16.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [Harmonic Projects LLC](https://appshunter.io/developer/1772974838) |

## What reviewers say

### Sudoku·

[App page](https://appshunter.io/ios/app/sudoku/id839681682)

Engage your mind with a classic Sudoku puzzle game. Enjoy a clean interface and multiple difficulty levels. Track your progress and compete with others.

**Highlights:** Daily Challenge, Multiple difficulty levels, Note taking, Hint system, Highlight incorrect values, Individual statistics, Game Center leaderboard

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Excellent sudoku game
- 👍 Easy to use and understand
- 🧠 Helps exercise the brain
- 💤 Relaxing and calming

**What reviewers complain about**

- 🙄 Excessive ads and interruptions
- ⏱️ Ads affect game timer
- 🔇 Cannot mute or control audio
- 🐛 Bugs and crashes

**Reported bugs**

- Game freezes or crashes after updates
- Timer issues due to ads
- Difficulty closing ads or navigating UI
- Incompatibility with newer devices

**Requested features**

- Option to pay for ad-free version
- Ability to pause and restart games
- More detailed performance tracking
- Customizable color themes


### Zendoku

[App page](https://appshunter.io/ios/app/zendoku/id934571977)

A clean and elegant sudoku game offering unlimited puzzles across four difficulty levels. Enjoy a distraction-free experience with customizable themes and note-taking features. Play offline with no subscriptions or in-app purchases.

**Highlights:** Unlimited puzzles, Four difficulty settings, 32 relaxing themes, Note-taking feature, Distraction-free mode, Offline play

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku· free?

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

### Is Zendoku free?

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

### Which has better reviews, Sudoku· or Zendoku?

Sudoku· is rated higher. Sudoku· averages 4.7 out of 5 from 17K ratings, while Zendoku averages 4.0 from 2 ratings.

### Do Sudoku· or Zendoku have ads?

Sudoku· shows ads; Zendoku does not.

### Which is updated more often, Sudoku· or Zendoku?

Sudoku· ships an update every 2 months, and Zendoku every 3 months. Most recently, Sudoku· was updated on November 7, 2026 and Zendoku on November 1, 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.*