# 史上最烧脑游戏 vs Echo

The clearest difference is in-app purchases: 史上最烧脑游戏 at none against Echo's 1. 史上最烧脑游戏 also leads on iOS requirement (10.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Echo sells 1 one-off in-app purchase. 史上最烧脑游戏 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 史上最烧脑游戏 | Echo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 days | Every 4 days |
| Size | 55 MB | 13 MB |
| Requires iOS | **10.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Guangzhou Weimeng Information Technology Co.,Ltd.](https://appshunter.io/developer/1511447987) | [Thorsten Halle](https://appshunter.io/developer/1881398429) |

## What reviewers say

### 史上最烧脑游戏

[App page](https://appshunter.io/ios/app/id1622938112)

**Features:** macOS Compatibility

**In-app purchases:** none


### Echo

[App page](https://appshunter.io/ios/app/echo-pattern-game/id6760206563)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Pro | $2.99 | one-time |


## Frequently asked questions

### Is 史上最烧脑游戏 free?

史上最烧脑游戏 is free to download, with no in-app purchases.

### Is Echo free?

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

### Do 史上最烧脑游戏 or Echo have ads?

Both 史上最烧脑游戏 and Echo show ads.

### Which is updated more often, 史上最烧脑游戏 or Echo?

史上最烧脑游戏 ships an update every 4 days, and Echo every 4 days. Most recently, 史上最烧脑游戏 was updated on October 8, 2026 and Echo on October 12, 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.*