# Sudoku | Keep your mind sharp! vs Sudoku Explorer

The clearest difference is update cadence: Sudoku Explorer at weekly against Sudoku | Keep your mind sharp!'s every 5 weeks. Sudoku Explorer also leads on iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sudoku | Keep your mind sharp! sells 2 in-app purchases, starting at $0.99 per month and Sudoku Explorer sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Sudoku | Keep your mind sharp! ships an update every 5 weeks, Sudoku Explorer weekly. The most recent releases landed on September 19, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Sudoku | Keep your mind sharp! | Sudoku Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (225 ratings)](https://appshunter.io/ios/app/sudoku-keep-your-mind-sharp/id1483114958/reviews)** | — |
| Number of ratings | **225** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 186 MB | 225 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Loyal Foundry, Inc.](https://appshunter.io/developer/1620612434) | [Thinking Game Limited](https://appshunter.io/developer/1694762275) |

## What reviewers say

### Sudoku | Keep your mind sharp!

[App page](https://appshunter.io/ios/app/sudoku-keep-your-mind-sharp/id1483114958)

Engage in the classic numbers game with thousands of free Sudoku puzzles. Suitable for all skill levels, this app offers features to help you relax, sharpen your mind, and track your progress. Enjoy customizable themes and unlimited hints for a seamless puzzle experience.

**Highlights:** Thousands of free puzzles, Note-taking feature, Customizable themes, Multiple difficulty levels, Statistics tracking, Unlimited hints, Cell, row, and column highlighting

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $0.99 | per month |
| Sudoku Remove Ads | $3.99 | one-time |


### 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 Sudoku | Keep your mind sharp! free?

Sudoku | Keep your mind sharp! is free to download, with in-app purchases available.

### Is Sudoku Explorer free?

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

### Do Sudoku | Keep your mind sharp! or Sudoku Explorer have ads?

Both Sudoku | Keep your mind sharp! and Sudoku Explorer show ads.

### Which is updated more often, Sudoku | Keep your mind sharp! or Sudoku Explorer?

Sudoku | Keep your mind sharp! ships an update every 5 weeks, and Sudoku Explorer weekly. Most recently, Sudoku | Keep your mind sharp! was updated on September 19, 2026 and Sudoku Explorer on September 16, 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.*