# DieDoku vs ECHO

The clearest difference is rating: DieDoku at 5.0 against ECHO's 4.0. DieDoku also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.0). ECHO's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume and in-app purchases there is nothing between them.

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

DieDoku holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

DieDoku ships an update every 6 days, ECHO every 3 days. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | DieDoku | ECHO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/diedoku-mini-sudoku-puzzles/id6751937119/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/echo-time-loop-puzzle/id6791749935/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 days | **Every 3 days** |
| Monetization | Ad-supported | **Free** |
| Size | 72 MB | 3 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Christopher Szeto](https://appshunter.io/developer/1837610168) | [Lucas Hesseldieck](https://appshunter.io/developer/6788079537) |

## What reviewers say

### DieDoku

[App page](https://appshunter.io/ios/app/diedoku-mini-sudoku-puzzles/id6751937119)

This app offers a unique 6x6 puzzle experience using dice instead of numbers. It's designed for both beginners learning sudoku fundamentals and experienced players seeking a fresh challenge. Enjoy daily puzzles, timed challenges, and a solo journey mode to keep your mind sharp.

**Highlights:** Dice-based 6x6 sudoku puzzles, Daily Challenge mode, Timeless Journey progression, Full sudoku toolkit (notes, hints, undo), Solo and friend comparison modes, Collectible DieCats

**Features:** macOS Compatibility

**In-app purchases:** none


### ECHO

[App page](https://appshunter.io/ios/app/echo-time-loop-puzzle/id6791749935)

This puzzle game challenges you to cooperate with recordings of your past actions. Solve intricate levels by coordinating with your "echoes" to overcome obstacles and complete complex sequences.

**Highlights:** Time-loop gameplay, 100 campaign levels, Daily puzzles, Endless Zen mode, Time challenge mode, Offline play, Live synthesized music

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

**In-app purchases:** none


## Frequently asked questions

### Is DieDoku free?

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

### Is ECHO free?

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

### Which has better reviews, DieDoku or ECHO?

DieDoku is rated higher. DieDoku averages 5.0 out of 5 from 8 ratings, while ECHO averages 4.0 from 4 ratings.

### Do DieDoku or ECHO have ads?

DieDoku shows ads; ECHO does not.

### Which is updated more often, DieDoku or ECHO?

DieDoku ships an update every 6 days, and ECHO every 3 days. Most recently, DieDoku was updated on October 24, 2026 and ECHO on October 22, 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.*