# 疯子读书 vs 齐采药

The clearest difference is iOS requirement: 疯子读书 at 9.0 against 齐采药's 12.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | 疯子读书 | 齐采药 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 49 MB | 50 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [天津众妙之门科技有限公司](https://appshunter.io/developer/1676883673) | [Hebei Anjia Pharmaceuticals Co., Ltd.](https://appshunter.io/developer/1820357658) |

## What reviewers say

### 疯子读书

[App page](https://appshunter.io/ios/app/id6446239659)

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

**In-app purchases:** none


### 齐采药

[App page](https://appshunter.io/ios/app/id6450694458)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 疯子读书 free?

疯子读书 is free to download, with no in-app purchases.

### Is 齐采药 free?

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

### Do 疯子读书 or 齐采药 have ads?

Neither 疯子读书 nor 齐采药 shows ads.

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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.*