# 简研 vs 日月时间

The clearest difference is device support: 简研 at 2 against 日月时间's —. 简研 also leads on iOS requirement (10.0 vs 12.0). On in-app purchases there is nothing between them.

## The numbers

| Metric | 简研 | 日月时间 |
| --- | --- | --- |
| Price | **Free** | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 5 weeks | — |
| Size | 101 MB | 25 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Mudi Biotech Co., Ltd.](https://appshunter.io/developer/1008561790) | [北京才牛图科技有限公司](https://appshunter.io/developer/1556885180) |

## What reviewers say

### 简研

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 日月时间

[App page](https://appshunter.io/ios/app/id6769769359)

**In-app purchases:** none


## Frequently asked questions

### Is 简研 free?

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

### Is 日月时间 free?

Pricing for 日月时间 is not currently listed on the App Store.

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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.*