Sentinel Downloads & RevenueSentinel · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperReference Point Limited
CategoryBusiness
PriceFree
Released
Rating★ 1.7 (86)
Version3.5.1
Age rating4+
First seen by us
19 Oct 2026
19 Oct 2026🆕First spotted by AppInsider📈Dropped out of every chart we track📦Version 3.5.1🆕Released on the App Store
Full timeline · 4 events
- 🆕Sentinel first spotted by AppInsider#88 in Top Free · Business · United Kingdom
- 📈Sentinel dropped out of every chart we trackLast seen 18 Oct
- 📦Sentinel version 3.5.1Bug fixes.
- 🆕Sentinel released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
1.7 ★
86 ratings
Measured
Sentinel on the App Store
App details
App ID
662867082
Publisher
Reference Point Limited
On the store since
Aug 2013
13 years on the store
Minimum OS
iOS 15.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
9 MB
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
1.7 ★
86 ratings
Measured
Ratings
86
Measured
About Sentinel
This app is designed specifically to read Sentinel smartcards for Network Rail’s 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 card’s 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.
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 card’s 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.
Latest updates
3.5.1
Bug fixes.
