# Sentinel vs Mail 25

The clearest difference is in-app purchases: Mail 25 at none against Sentinel's 1. Mail 25 also leads on iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Sentinel sells 1 one-off in-app purchase. Mail 25 asks for nothing beyond the download.

## The numbers

| Metric | Sentinel | Mail 25 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 3 MB | 24 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [6tSevn BV](https://appshunter.io/developer/1888787908) | [Yukthi Systems Private Limited](https://appshunter.io/developer/6786602866) |

## What reviewers say

### Sentinel

[App page](https://appshunter.io/ios/app/sentinel-ip-camera-setup/id6785523818)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keep Full Access | $0.99 | one-time |


### Mail 25

[App page](https://appshunter.io/ios/app/mail-25/id6786602864)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sentinel free?

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

### Is Mail 25 free?

Mail 25 is free to download, with no in-app purchases.

### Do Sentinel or Mail 25 have ads?

Neither Sentinel nor Mail 25 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.*