# Sudoku 2* vs Killer Sudoku

The clearest difference is iOS requirement: Sudoku 2* at 13.0 against Killer Sudoku's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 21, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Sudoku 2* | Killer Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (17 ratings)](https://appshunter.io/ios/app/sudoku-2/id1481923386/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 6 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Lei Li](https://appshunter.io/developer/760512889) | [Dmitrii Kurbakov](https://appshunter.io/developer/6796452758) |

## What reviewers say

### Sudoku 2*

[App page](https://appshunter.io/ios/app/sudoku-2/id1481923386)

This classic number puzzle game offers over 1500 levels across four difficulty settings. Enjoy an intuitive interface and all essential tools for a relaxing or mentally stimulating experience on the go.

**Highlights:** 1500+ Sudoku levels, 4 difficulty settings, Intuitive interface, Essential game functions, Playable on mobile devices, Suitable for all skill levels

**Features:** macOS Compatibility

**In-app purchases:** none


### Killer Sudoku

[App page](https://appshunter.io/ios/app/killer-sudoku-quick-notes/id6797194087)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku 2* free?

Sudoku 2* is free to download, with no in-app purchases.

### Is Killer Sudoku free?

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

### Do Sudoku 2* or Killer Sudoku have ads?

Neither Sudoku 2* nor Killer Sudoku shows ads.

### Which is updated more often, Sudoku 2* or Killer Sudoku?

Sudoku 2* ships an update fortnightly, and Killer Sudoku fortnightly. Most recently, Sudoku 2* was updated on October 21, 2026 and Killer Sudoku on October 4, 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.*