# 脑筋急转弯3600 vs 挑战最强大脑

The clearest difference is in-app purchases: 脑筋急转弯3600 at none against 挑战最强大脑's 6. 挑战最强大脑's advantage is ads (none vs shown) and update cadence (every 5 months vs every 22 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 挑战最强大脑 sells 6 one-off in-app purchases. 脑筋急转弯3600 asks for nothing beyond the download.

脑筋急转弯3600 ships an update every 22 months, 挑战最强大脑 every 5 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 脑筋急转弯3600 | 挑战最强大脑 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 22 months | **Every 5 months** |
| Size | 8 MB | 100 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [文睿 李](https://appshunter.io/developer/372593992) | [剑 林](https://appshunter.io/developer/1466914836) |

## What reviewers say

### 脑筋急转弯3600

[App page](https://appshunter.io/ios/app/3600/id511820634)

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

**In-app purchases:** none


### 挑战最强大脑

[App page](https://appshunter.io/ios/app/id1470584883)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 打赏6元 | $0.99 | one-time |
| 打赏12元 | $1.99 | one-time |
| 打赏18元 | $2.99 | one-time |
| 打赏25元 | $3.99 | one-time |
| 打赏30元 | $4.99 | one-time |
| 打赏50元 | $7.99 | one-time |


## Frequently asked questions

### Is 脑筋急转弯3600 free?

脑筋急转弯3600 is free to download, with no in-app purchases.

### Is 挑战最强大脑 free?

挑战最强大脑 is free to download, with in-app purchases available.

### Do 脑筋急转弯3600 or 挑战最强大脑 have ads?

脑筋急转弯3600 shows ads; 挑战最强大脑 does not.

### Which is updated more often, 脑筋急转弯3600 or 挑战最强大脑?

脑筋急转弯3600 ships an update every 22 months, and 挑战最强大脑 every 5 months. Most recently, 脑筋急转弯3600 was updated on November 1, 2026 and 挑战最强大脑 on October 29, 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.*