# Echo Zone vs Knife

The clearest difference is in-app purchases: Knife at none against Echo Zone's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Echo Zone sells 1 in-app purchase, starting at $5.99 per year. Knife asks for nothing beyond the download.

Echo Zone ships an update monthly, Knife every 3 weeks. The most recent releases landed on October 24, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Echo Zone | Knife |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/echo-zone/id6752801641/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 88 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ghassen Ghamem](https://appshunter.io/developer/1584714475) | [Myeong Su Seon](https://appshunter.io/developer/1714772732) |

## What reviewers say

### Echo Zone

[App page](https://appshunter.io/ios/app/echo-zone/id6752801641)

Navigate challenging mazes by mastering timing and anticipation. Choose between an easy mode with a visible map or a hard mode with limited vision. Each level requires a blend of thinking and action to avoid dangers and find the exit.

**Highlights:** Dynamic labyrinths with traps, Easy and Hard game modes, Precise controls, Short or long session play, Polished performance

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Go Ad-Free | $5.99 | per year |


### Knife

[App page](https://appshunter.io/ios/app/knife-crash/id6754973459)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Echo Zone free?

Echo Zone is free to download, with in-app purchases available.

### Is Knife free?

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

### Do Echo Zone or Knife have ads?

Both Echo Zone and Knife show ads.

### Which is updated more often, Echo Zone or Knife?

Echo Zone ships an update monthly, and Knife every 3 weeks. Most recently, Echo Zone was updated on October 24, 2026 and Knife on October 14, 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.*