# Simple Sudoku Game vs Echo Letters

The clearest difference is iOS requirement: Simple Sudoku Game at 13.0 against Echo Letters's 26.1. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Simple Sudoku Game | Echo Letters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simple-sudoku-game/id337787822/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 44 months | — |
| Monetization | Free | — |
| Size | 5 MB | 9 MB |
| Requires iOS | **13.0** | 26.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Illés László](https://appshunter.io/developer/316890672) | [ReachUp](https://appshunter.io/developer/1864016624) |

## What reviewers say

### Simple Sudoku Game

[App page](https://appshunter.io/ios/app/simple-sudoku-game/id337787822)

Engage your mind with a vast collection of unique Sudoku puzzles. This game offers various difficulty levels, helpful tools like undo and notes, and tracks your progress with statistics and a timer.

**Highlights:** Over 1,000,000 unique puzzles, Undo functionality, Note-taking feature, Hint system, Erase tool, Multiple difficulty modes, Statistics tracking, In-game timer

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

**In-app purchases:** none


### Echo Letters

[App page](https://appshunter.io/ios/app/echo-letters/id6756981207)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Sudoku Game free?

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

### Is Echo Letters free?

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

### Do Simple Sudoku Game or Echo Letters have ads?

Neither Simple Sudoku Game nor Echo Letters shows ads.

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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.*