# Sentinel vs MiSentinel

The clearest difference is update cadence: MiSentinel at weekly against Sentinel's every 4 months. MiSentinel also leads on review sentiment (25% vs 10%). Sentinel's advantage is iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sentinel ships an update every 4 months, MiSentinel weekly. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Sentinel | MiSentinel |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.8% of reviews | **25.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | Free |
| Size | 8 MB | 44 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Reference Point Limited](https://appshunter.io/developer/662867085) | [Sentinel Technologies](https://appshunter.io/developer/841522350) |

## What reviewers say

### Sentinel

[App page](https://appshunter.io/ios/app/sentinel/id662867082)

Access and verify Network Rail Sentinel smartcards. Check your own card details or authenticate team members and conduct spot checks. Works online for real-time data or offline for card access and stored check history.

**Highlights:** Read Sentinel smartcards via NFC, Scan QR codes for card data, Verify cardholder information, Authenticate team members, Perform spot checks, Check TVPs (Track Vacancy Permits), Offline access to card data

**In-app purchases:** none


### MiSentinel

[App page](https://appshunter.io/ios/app/misentinel/id1214281371)

This application helps organizations manage and protect lone workers by streamlining shift scheduling and providing real-time incident monitoring. It offers instant alerts for missed check-ins and allows for detailed multimedia incident reporting.

**Highlights:** Real-time alerts for staff issues, Multimedia incident reporting, Staff check-in/out tracking, Live location monitoring, Automated emergency notifications, On-demand activity reports

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentinel free?

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

### Is MiSentinel free?

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

### Do Sentinel or MiSentinel have ads?

Neither Sentinel nor MiSentinel shows ads.

### Which is updated more often, Sentinel or MiSentinel?

Sentinel ships an update every 4 months, and MiSentinel weekly. Most recently, Sentinel was updated on October 16, 2026 and MiSentinel on October 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*