# Echo Zone vs Number Chain

The clearest difference is in-app purchases: Number Chain at none against Echo Zone's 1. Number Chain also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.1). On price, update cadence 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. Number Chain asks for nothing beyond the download.

Echo Zone ships an update monthly, Number Chain every 3 weeks. The most recent releases landed on October 1, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Echo Zone | Number Chain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/echo-zone/id6752801641/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 51 MB | 56 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ghassen Ghamem](https://appshunter.io/developer/1584714475) | [FGTP Labs](https://appshunter.io/developer/1849326000) |

## 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 |


### Number Chain

[App page](https://appshunter.io/ios/app/number-chain-logic-grid/id6754763674)

**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 Number Chain free?

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

### Do Echo Zone or Number Chain have ads?

Echo Zone shows ads; Number Chain does not.

### Which is updated more often, Echo Zone or Number Chain?

Echo Zone ships an update monthly, and Number Chain every 3 weeks. Most recently, Echo Zone was updated on October 1, 2026 and Number Chain on October 10, 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.*