# Sudoku⁹ vs Sudoku Explorer

The clearest difference is in-app purchases: Sudoku⁹ at none against Sudoku Explorer's 8. Sudoku⁹ also leads on ads (none vs shown). Sudoku Explorer's advantage is update cadence (weekly vs every 9 months) and iOS requirement (12.0 vs 14.0). On price and device support there is nothing between them.

Both are free to download. Sudoku Explorer sells 8 one-off in-app purchases. Sudoku⁹ asks for nothing beyond the download.

Sudoku⁹ ships an update every 9 months, Sudoku Explorer weekly. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Sudoku⁹ | Sudoku Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/sudoku/id6445941744/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 9 months | **Weekly** |
| Monetization | Free | — |
| Size | 1 MB | 225 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Berson](https://appshunter.io/developer/1531453464) | [Thinking Game Limited](https://appshunter.io/developer/1694762275) |

## What reviewers say

### Sudoku⁹

[App page](https://appshunter.io/ios/app/sudoku/id6445941744)

This logic-based number-placement puzzle challenges players to fill grids with digits 1-9. Each row, column, and 3x3 subgrid must contain all digits without repetition. It's a classic brain teaser for honing deductive reasoning skills.

**Highlights:** Number placement logic, Row and column constraints, 3x3 region rules, Deductive reasoning challenge, Classic brain teaser

**Features:** macOS Compatibility

**In-app purchases:** none


### Sudoku Explorer

[App page](https://appshunter.io/ios/app/sudoku-explorer/id6738623508)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 240 Coins | $0.99 | one-time |
| Get 720 Coins! | $4.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Mega Bundle | $9.99 | one-time |
| Get 1500 Coins! | $9.99 | one-time |
| Get 2800 Coins! | $19.99 | one-time |
| Get 6200 Coins! | $49.99 | one-time |
| Get 13000 Coins! | $99.99 | one-time |


## Frequently asked questions

### Is Sudoku⁹ free?

Sudoku⁹ is free to download, with no in-app purchases.

### Is Sudoku Explorer free?

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

### Do Sudoku⁹ or Sudoku Explorer have ads?

Sudoku Explorer shows ads; Sudoku⁹ does not.

### Which is updated more often, Sudoku⁹ or Sudoku Explorer?

Sudoku⁹ ships an update every 9 months, and Sudoku Explorer weekly. Most recently, Sudoku⁹ was updated on October 6, 2026 and Sudoku Explorer on October 3, 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.*