# Sudoku· vs Killer Sudoku +

The clearest difference is in-app purchases: Sudoku· at none against Killer Sudoku +'s 22. Sudoku· also leads on ratings volume (17K vs 311). Killer Sudoku +'s advantage is ads (none vs shown) and review sentiment (75% vs 66%). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. Killer Sudoku + sells 22 one-off in-app purchases. Sudoku· asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Sudoku· against 4.8 for Killer Sudoku +. That said, the two scores are not equally well evidenced: Sudoku· has 17K ratings behind it against 311, so its average is the more settled of the two. Written reviews are what separate them: 66% of Sudoku·'s written reviews are positive against 75% of Killer Sudoku +'s.

Sudoku· ships an update every 2 months, Killer Sudoku + every 3 months. The most recent releases landed on October 28, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Sudoku· | Killer Sudoku + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (17K ratings)](https://appshunter.io/ios/app/sudoku/id839681682/reviews) | **[4.8 (311 ratings)](https://appshunter.io/ios/app/killer-sudoku-plus/id866856408/reviews)** |
| Number of ratings | **17K** | 311 |
| Positive reviews | 65.7% of reviews | **74.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 42 MB | 2 MB |
| Requires iOS | 13 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [James Gibbs](https://appshunter.io/developer/866856411) |

## 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


### Killer Sudoku +

[App page](https://appshunter.io/ios/app/killer-sudoku-plus/id866856408)

This app offers a challenging variant of Sudoku where you must fill a grid with numbers 1-9, ensuring each row, column, and 3x3 block has unique digits. Additionally, numbers within designated "cages" must sum to a specified value without repeating.

**Highlights:** Sudoku variant gameplay, Cage sum challenges, Unique solution puzzles, Graded difficulty levels, Thousands of puzzles available

**Features:** macOS Compatibility

**In-app purchases (22)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Easy Killer Sudokus #1 | $0.99 | one-time |
| 100 Moderate Killer Sudokus #1 | $0.99 | one-time |
| 100 Hard Killer Sudokus #1 | $0.99 | one-time |
| 100 Extreme Killer Sudokus #1 | $0.99 | one-time |
| 100 Mixed Killer Sudokus #1 | $0.99 | one-time |
| 100 Easy Killer Sudokus #2 | $0.99 | one-time |
| 100 Hard Killer Sudokus #2 | $0.99 | one-time |
| 100 Mixed Killer Sudokus #2 | $0.99 | one-time |
| 100 Moderate Killer Sudokus #2 | $0.99 | one-time |
| 100 Easy Killer Sudokus #3 | $0.99 | one-time |
| 100 Moderate Killer Sudokus #3 | $0.99 | one-time |
| 100 Hard Killer Sudokus #3 | $0.99 | one-time |
| 100 Mixed Killer Sudokus #3 | $0.99 | one-time |
| 100 Extreme Killer Sudokus #2 | $0.99 | one-time |
| 100 Extreme Killer Sudokus #4 | $0.99 | one-time |
| 100 Extreme Killer Sudokus #3 | $0.99 | one-time |
| 100 Easy Killer Sudokus #4 | $0.99 | one-time |
| 500 Extreme Killer Sudokus | $3.99 | one-time |
| 500 Easy Killer Sudokus | $3.99 | one-time |
| 500 Hard Killer Sudokus | $3.99 | one-time |
| 500 Moderate Killer Sudokus | $3.99 | one-time |
| 500 Mixed Killer Sudokus | $3.99 | one-time |

**What reviewers like**

- 👍 Great game/app
- 🧠 Challenging puzzles
- 💡 User-friendly interface (once used to)
- 💰 Good value for money/affordable
- 🚫 No ads

**What reviewers complain about**

- 🤔 Puzzles can vary in difficulty
- 💰 Limited free puzzles
- 🐛 Some puzzles have multiple solutions
- 📱 Purchase restoration issues
- 🖱️ Uncomfortable/confusing controls

**Reported bugs**

- Purchased packs disappear after factory reset/device change
- Cannot download extra games, error message
- Puzzles with multiple solutions
- App jams after purchasing puzzles
- App frozen/won't open

**Requested features**

- Colorize squares individually
- Left-handed option
- Highlight all cells with a particular number
- Highlight undone actions
- Ability to undo undone actions


## Frequently asked questions

### Is Sudoku· free?

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

### Is Killer Sudoku + free?

Killer Sudoku + is free to download, with in-app purchases available.

### Which has better reviews, Sudoku· or Killer Sudoku +?

Killer Sudoku + is rated higher. Sudoku· averages 4.7 out of 5 from 17K ratings, while Killer Sudoku + averages 4.8 from 311 ratings.

### Do Sudoku· or Killer Sudoku + have ads?

Sudoku· shows ads; Killer Sudoku + does not.

### Which is updated more often, Sudoku· or Killer Sudoku +?

Sudoku· ships an update every 2 months, and Killer Sudoku + every 3 months. Most recently, Sudoku· was updated on October 28, 2026 and Killer Sudoku + on October 26, 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.*