NT Sentinel

NT Sentinel app is designed to inform key information to staff & general public

National Theatre IT · com.yudu.sentinel.nationaltheatre

Not rated yet 500+ downloads v11.6.9.0 7.5 MB Android 6.0+ PEGI 3 · Everyone

Download APK 7.5 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v11.6.9.0 (11060900)
Updated: Jan 24, 2026 (8 months ago)
APK size: 7.5 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Business (app)
Listed since: Jun 1, 2021 (at least)
Permissions: 9 (1 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

NT Sentinel is an app by National Theatre IT in the Business category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

Since version 11.4.6.0, the minimum Android version rose from 5.0 to 6.0. It asks for 9 permissions, 1 of them sensitive: modify shared storage.

What's new in v11.6.9.0

- Minor bug fixes and improvements.

Description

From the listing uploaded by “appupdater”.

The National Theatre Sentinel app is designed to inform and communicate key information to the staff and general public when incidents occur in and around the National Theatre venue on London’s Southbank. The National Theatre Emergency Notification System (ENS) can quickly and easily construct and send critical information to local businesses and also respond to those that are in need. This comprehensive notification system keeps everyone informed before, during and after all events to achieve situational awareness when time is of the essence. Below are some of the features of the app and system: - Can send critical notifications using multiple types of notification (SMS, email, in-app etc) - Activate and receive confirmations from key contacts via a 2-way in-app messaging feature - Crisis Management - Clear lines of responsibility - In-app checklists - Defined communication flow - Access and execute the Business Continuity Plan at the push of a button - Track and analyse actions and responses to improve on future incidents - Enhanced situational awareness

Version history

4 versions are listed, going back to v11.4.6.0. Since v11.6.2.0 it requires Android 6.0+.

v11.6.9.0 LATEST Jan 24, 2026 7.5 MB UNKNOWN v11.6.6.0 Jan 15, 2026 7.5 MB UNKNOWN v11.6.2.0 Jun 5, 2024 7.6 MB UNKNOWN v11.4.6.0 Nov 3, 2023 7.6 MB UNKNOWN

All 4 versions

Security & authenticity

Security rating: Unknown

Signing certificate

Signature matches the Google Play version Checked by the source store on Jan 24, 2026.
Certificate issued to “Unknown” This is the certificate of the Google Play version.

Store checks and file details

Developer signature not checked yet Jan 24, 2026
Validated against Google Play Jan 24, 2026
Signed byCN=Unknown, OU=Unknown, O=Unknown, L=Unknown, ST=Unknown, C=Unknown
Signing certificate (SHA-1)1E:EE:7A:F4:78:C2:08:E3:69:59:3F:76:FC:0D:2E:56:70:D4:DF:12
File MD52178b1769d4578932030f853ae801593
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

NT Sentinel requests 9 permissions, 1 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.yudu.sentinel.nationaltheatre.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Show notifications android.permission.POST_NOTIFICATIONS
Use biometric hardware android.permission.USE_BIOMETRIC
Use fingerprint hardware android.permission.USE_FINGERPRINT
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

NT Sentinel APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the NT Sentinel APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 2178b1769d4578932030f853ae801593.