# Sumio vs ECHO

The clearest difference is update cadence: ECHO at every 3 days against Sumio's every 3 weeks. Sumio's advantage is iOS requirement (8.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.0 for Sumio against 4.0 for ECHO. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

Sumio ships an update every 3 weeks, ECHO every 3 days. The most recent releases landed on October 24, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sumio | ECHO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/sumio/id1550447933/reviews) | [4.0 (4 ratings)](https://appshunter.io/ios/app/echo-time-loop-puzzle/id6791749935/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | Free |
| Size | 78 MB | 3 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Berkay Saglam](https://appshunter.io/developer/1549190677) | [Lucas Hesseldieck](https://appshunter.io/developer/6788079537) |

## What reviewers say

### Sumio

[App page](https://appshunter.io/ios/app/sumio/id1550447933)

Engage your mind with a logic number puzzle game. Drag tiles to match row and column sums, offering adjustable difficulty and daily challenges for hours of brain-training fun.

**Highlights:** Logic number puzzles, Drag and drop tile mechanics, Adjustable difficulty, Daily challenges, Hint system, Brain training

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

**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 Sumio free?

Sumio 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, Sumio or ECHO?

Sumio and ECHO are both rated 4.0 out of 5 on the App Store, from 4 and 4 ratings respectively.

### Do Sumio or ECHO have ads?

Neither Sumio nor ECHO shows ads.

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

Sumio ships an update every 3 weeks, and ECHO every 3 days. Most recently, Sumio was updated on October 24, 2026 and ECHO on October 31, 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.*