Sentinel vs Tensor FRC
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Sentinel
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.
- 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
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This app is designed specifically to read Sentinel smartcards for Network Railβs Sentinel system. It allows anyone to check their own Sentinel card and allows authorised card checkers to authenticate their team as well as undertake spot checks and check TVPs. When online, the app shows the most up to date information for each cardholder either by scanning the cardβs QR code or by reading the details stored in the smartcard using NFC. Even without mobile internet access, the information stored on the card can still be accessed, any recently scanned card details can also be reviewed, and all checks will be stored and uploaded to the database when back online.
Tensor FRC
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The Tensor FRC app is compatible with Tensor.NET & SSM web service v4.2.0.61 and above, registered with a FRC serial number. The Tensor FRC app provides the following functionality. β’ the app displays a refreshable list of employees, within a selected fire point, who are booked ON site for fire roll call purposes. β’ the app also displays a refreshable list of employees who have booked OFF site within a configurable time period. β’ the user can book a person OFF site directly from the app. Direct communication commands immediately update the status of booked off personnel at clocks and access controllers. β’ visitors, contractors and visiting employees are included in the app's on / off site lists when Tensor.NET is registered with a WinMCVS serial number. β’ on or off site personnel can be searched for by all or part of their surname. β’ full contact details, including name, telephone numbers, photographic image and the time and status of the last site booking, are available for each person on or off site. β’ the resident site and department is shown for employees. β’ the visitor company and appointment host details are shown for visitors. β’ personnel can be immediately contacted by voice call or email using live links in their contact details. β’ a fire marshal may browse the personnel allocated to any fire point available within their user's assigned site. β’ lists of on or off site personnel can be filtered by type; employee, visitor, contractor or visiting employee.
Screenshots
Verdict
The clearest difference is iOS requirement: Sentinel at 13.0 against Tensor FRC's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on June 8, 2026 and September 14, 2026 respectively.
| Parameter | Sentinel | Tensor FRC |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 9.8% of reviews | β |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | β |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 β better | 15.6 |
| Further details β not scored | ||
| Size | 6 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Reference Point Limited | Tensor plc |
In-app purchases
Sentinel
No in-app purchases
Tensor FRC
No in-app purchases
Questions
Is Sentinel free?
Is Tensor FRC free?
Do Sentinel or Tensor FRC have ads?
Which is updated more often, Sentinel or Tensor FRC?
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