# Sentinel vs MSTMobile

The clearest difference is update cadence: MSTMobile at monthly against Sentinel's every 4 months. Sentinel's advantage is iOS requirement (13.0 vs 15.6). 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, MSTMobile monthly. The most recent releases landed on June 8, 2026 and June 25, 2026 respectively.

## The numbers

| Metric | Sentinel | MSTMobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/mstmobile/id952270146/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 9.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | Free | Free |
| Size | 6 MB | 60 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reference Point Limited](https://appshunter.io/developer/662867085) | [Mobil Information Systems Limited](https://appshunter.io/developer/328204515) |

## 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


### MSTMobile

[App page](https://appshunter.io/ios/app/mstmobile/id952270146)

Track your fleet and vehicle locations with real-time GPS data. Access historical movement and make informed decisions about your fleet's activities through an intuitive mobile interface.

**Highlights:** Real-time fleet/vehicle location, Historical movement data, Intuitive mobile interface, On-the-spot decision making, Feature-rich user experience

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sentinel free?

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

### Is MSTMobile free?

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

### Do Sentinel or MSTMobile have ads?

Neither Sentinel nor MSTMobile shows ads.

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

Sentinel ships an update every 4 months, and MSTMobile monthly. Most recently, Sentinel was updated on June 8, 2026 and MSTMobile on June 25, 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.*