# Sudoku Mentor vs Echo Hunt

The clearest difference is in-app purchases: Echo Hunt at none against Sudoku Mentor's 1. Sudoku Mentor's advantage is iOS requirement (13.0 vs 17.6). On price there is nothing between them.

Both are free to download. Sudoku Mentor sells 1 one-off in-app purchase. Echo Hunt asks for nothing beyond the download.

## The numbers

| Metric | Sudoku Mentor | Echo Hunt |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Size | 17 MB | 6 MB |
| Requires iOS | **13.0** | 17.6 |
| Age rating | 4+ | 4+ |
| Developer | [杭州一点不同科技有限公司](https://appshunter.io/developer/1719597086) | [明明 常](https://appshunter.io/developer/1536002037) |

## What reviewers say

### Sudoku Mentor

[App page](https://appshunter.io/ios/app/sudoku-mentor/id6759636236)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sudoku Mentor Pro | $0.99 | one-time |


### Echo Hunt

[App page](https://appshunter.io/ios/app/echo-hunt-shadow-chase/id6760329092)

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Mentor free?

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

### Is Echo Hunt free?

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

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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.*