# 科研安全管理 vs 知伴

The clearest difference is in-app purchases: 科研安全管理 at none against 知伴's 6. 知伴's advantage is update cadence (fortnightly vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 知伴 sells 6 one-off in-app purchases. 科研安全管理 asks for nothing beyond the download.

科研安全管理 ships an update every 6 months, 知伴 fortnightly. Both last shipped on October 14, 2026.

## The numbers

| Metric | 科研安全管理 | 知伴 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 80 MB | 56 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [释普科技(上海)有限公司](https://appshunter.io/developer/1406216198) | [上海问学长科技有限公司](https://appshunter.io/developer/1690508127) |

## What reviewers say

### 科研安全管理

[App page](https://appshunter.io/ios/app/id6443770593)

**Features:** Vision Pro support

**In-app purchases:** none


### 知伴

[App page](https://appshunter.io/ios/app/id6449756253)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6学币 | $0.99 | one-time |
| 68学币 | $9.99 | one-time |
| 88学币 | $12.99 | one-time |
| 168学币 | $24.99 | one-time |
| 288学币 | $39.99 | one-time |
| 588学币 | $79.99 | one-time |


## Frequently asked questions

### Is 科研安全管理 free?

科研安全管理 is free to download, with no in-app purchases.

### Is 知伴 free?

知伴 is free to download, with in-app purchases available.

### Do 科研安全管理 or 知伴 have ads?

Neither 科研安全管理 nor 知伴 shows ads.

### Which is updated more often, 科研安全管理 or 知伴?

科研安全管理 ships an update every 6 months, and 知伴 fortnightly. Most recently, 科研安全管理 was updated on October 14, 2026 and 知伴 on October 14, 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.*