# Sentinel vs MacRail

The clearest difference is review sentiment: MacRail at 100% against Sentinel's 10%. MacRail also leads on update cadence (every 2 months vs every 4 months). 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, MacRail every 2 months. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Sentinel | MacRail |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 8 MB | 11 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reference Point Limited](https://appshunter.io/developer/662867085) | [Weston Analytics](https://appshunter.io/developer/1521673737) |

## 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


### MacRail

[App page](https://appshunter.io/ios/app/macrail/id1550770161)

Access your work schedule and submit updates directly from your mobile device. Securely log in using your credentials or fingerprint. Share essential travel and contact details for efficient scheduling management.

**Highlights:** Mobile account login, Fingerprint authentication, View work schedule, Submit schedule updates, Add travel details, Add contact information

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sentinel free?

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

### Is MacRail free?

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

### Do Sentinel or MacRail have ads?

Neither Sentinel nor MacRail shows ads.

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

Sentinel ships an update every 4 months, and MacRail every 2 months. Most recently, Sentinel was updated on October 10, 2026 and MacRail on October 1, 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.*