# 简研 vs 雷神之锤

The clearest difference is iOS requirement: 雷神之锤 at 8.0 against 简研's 10.0. 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 | 简研 | 雷神之锤 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 101 MB | 38 MB |
| Requires iOS | 10.0 | **8.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shanghai Mudi Biotech Co., Ltd.](https://appshunter.io/developer/1008561790) | [山东和远智能科技股份有限公司](https://appshunter.io/developer/1340752431) |

## What reviewers say

### 简研

[App page](https://appshunter.io/ios/app/id1361002001)

**Features:** macOS Compatibility

**In-app purchases:** none


### 雷神之锤

[App page](https://appshunter.io/ios/app/id1489443947)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 简研 free?

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

### Is 雷神之锤 free?

雷神之锤 is free to download, with no in-app purchases.

### Do 简研 or 雷神之锤 have ads?

Neither 简研 nor 雷神之锤 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.*