# LinkBrief vs Mail Sentinel

The clearest difference is device support: LinkBrief at 4 against Mail Sentinel's 2. LinkBrief also leads on iOS requirement (13.0 vs 17.0). On price, ads 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 | LinkBrief | Mail Sentinel |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Size | 20 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [晨鹏 林](https://appshunter.io/developer/1579655553) | [Sky Benson](https://appshunter.io/developer/1839805807) |

## What reviewers say

### LinkBrief

[App page](https://appshunter.io/ios/app/linkbrief/id6752807932)

**In-app purchases:** none


### Mail Sentinel

[App page](https://appshunter.io/ios/app/mail-sentinel/id6757452962)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LinkBrief free?

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

### Is Mail Sentinel free?

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

### Do LinkBrief or Mail Sentinel have ads?

Neither LinkBrief nor Mail Sentinel 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.*