# 侦探推理 vs 动脑急转弯

The clearest difference is ads: 动脑急转弯 at none against 侦探推理's shown. 动脑急转弯 also leads on update cadence (every 3 months vs every 52 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

侦探推理 ships an update every 52 months, 动脑急转弯 every 3 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 侦探推理 | 动脑急转弯 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 52 months | **Every 3 months** |
| Size | 18 MB | 4 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Yuanhao Information Technology Co., Ltd.](https://appshunter.io/developer/697767253) | [Render Apps](https://appshunter.io/developer/1614413964) |

## What reviewers say

### 侦探推理

[App page](https://appshunter.io/ios/app/id904629372)

**Features:** macOS Compatibility

**In-app purchases:** none


### 动脑急转弯

[App page](https://appshunter.io/ios/app/id1614413962)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 侦探推理 free?

侦探推理 is free to download, with no in-app purchases.

### Is 动脑急转弯 free?

动脑急转弯 is free to download, with no in-app purchases.

### Do 侦探推理 or 动脑急转弯 have ads?

侦探推理 shows ads; 动脑急转弯 does not.

### Which is updated more often, 侦探推理 or 动脑急转弯?

侦探推理 ships an update every 52 months, and 动脑急转弯 every 3 months. Most recently, 侦探推理 was updated on October 7, 2026 and 动脑急转弯 on October 25, 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.*