# Sudoku vs ONE KILLER LEFT

The clearest difference is ads: Sudoku at none against ONE KILLER LEFT's shown. ONE KILLER LEFT's advantage is update cadence (every 4 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Sudoku sells 4 in-app purchases, starting at $1.99 per 7 days and ONE KILLER LEFT sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sudoku ships an update every 2 weeks, ONE KILLER LEFT every 4 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | Sudoku | ONE KILLER LEFT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 60 MB | 41 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Fehmi Velioglu](https://appshunter.io/developer/1868220613) | [RICARDO GONZALEZ ESCALERA](https://appshunter.io/developer/6804354567) |

## What reviewers say

### Sudoku

[App page](https://appshunter.io/ios/app/sudoku-global-challenge/id6760406953)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $1.99 | per 7 days |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $29.99 | per year |


### ONE KILLER LEFT

[App page](https://appshunter.io/ios/app/one-killer-left/id6804354565)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 Discards | $0.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Sudoku free?

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

### Is ONE KILLER LEFT free?

ONE KILLER LEFT is free to download, with in-app purchases available.

### Do Sudoku or ONE KILLER LEFT have ads?

ONE KILLER LEFT shows ads; Sudoku does not.

### Which is updated more often, Sudoku or ONE KILLER LEFT?

Sudoku ships an update every 2 weeks, and ONE KILLER LEFT every 4 days. Most recently, Sudoku was updated on October 8, 2026 and ONE KILLER LEFT on October 8, 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.*