# Sentinel vs Guild Gateway

The clearest difference is review sentiment: Guild Gateway at 75% against Sentinel's 10%. Guild Gateway also leads on update cadence (every 8 days 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, Guild Gateway every 8 days. Both last shipped on June 8, 2026.

## The numbers

| Metric | Sentinel | Guild Gateway |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 9.8% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Free | Free |
| Size | 6 MB | 85 MB |
| Requires iOS | 13.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reference Point Limited](https://appshunter.io/developer/662867085) | [THE CONSTRUCTION WORKERS GUILD LIMITED](https://appshunter.io/developer/1766713467) |

## 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


### Guild Gateway

[App page](https://appshunter.io/ios/app/guild-gateway/id6670547039)

This app digitizes subcontractor registrations, eliminating paper processes. It allows for secure, real-time access to pay statements and leverages over 25 years of status compliance expertise. Trusted by over 1000 businesses, it aims to streamline efficiency and productivity.

**Highlights:** Digital subcontractor registration, Secure pay statement access, Real-time statement viewing, Status compliance expertise, Streamlined efficiency

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sentinel free?

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

### Is Guild Gateway free?

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

### Do Sentinel or Guild Gateway have ads?

Neither Sentinel nor Guild Gateway shows ads.

### Which is updated more often, Sentinel or Guild Gateway?

Sentinel ships an update every 4 months, and Guild Gateway every 8 days. Most recently, Sentinel was updated on June 8, 2026 and Guild Gateway on June 8, 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.*