# 师大方云 vs ProofLink

The clearest difference is device support: ProofLink at 2 against 师大方云's —. 师大方云's advantage is iOS requirement (10.0 vs 15). On price and in-app purchases 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 | 师大方云 | ProofLink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 5 days |
| Size | 78 MB | 41 MB |
| Requires iOS | **10.0** | 15 |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jiangsu Normal University](https://appshunter.io/developer/1367894633) | [Mashang Traceability (Shanghai) Technology Co., Ltd.](https://appshunter.io/developer/1825050994) |

## What reviewers say

### 师大方云

[App page](https://appshunter.io/ios/app/id1367894634)

**In-app purchases:** none


### ProofLink

[App page](https://appshunter.io/ios/app/prooflink/id6748296486)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 师大方云 free?

师大方云 is free to download, with no in-app purchases.

### Is ProofLink free?

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

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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.*