SIGNL4 – Mobile Alerting app icon

SIGNL4 – Mobile Alerting

Critical Alerting with Tracking, Escalation, On-Call Duty and Shift Scheduling

Derdack GmbH · com.derdack.signl4

Not rated yet 10K+ downloads v4.3.1 10.9 MB Android 6.0+ PEGI 3 · Everyone

At a glance

Latest version
v4.3.1 (385)
Updated
Feb 25, 2025 (1 year ago)
APK size
10.9 MB
Requires
Android 6.0+ (API 23)
CPU support
x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics
OpenGL ES 2.0+
Category
Business (app)
Listed since
Oct 20, 2020 (at least)
Permissions
23 (7 sensitive)
Website
signl4.com
Developer contact
[email protected]
Privacy
Developer's privacy policy

About this APK

SIGNL4 – Mobile Alerting is an app by Derdack GmbH in the Business category, listed since at least October 2020. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 23 permissions, 7 of them sensitive, including precise location, camera and read contacts. The app can read the advertising ID that ad and analytics services use.

What's new in v4.3.1

- We streamlined and improved Microsoft logins for more security and convenience. - We've also implemented minor fixes and improvements to enhance overall app performance.

Description

From the listing uploaded by “appupdater”.

In case of critical incidents in areas like workers safety, 24/7 IT operations, manufacturing continuity or disaster response, SIGNL4 is your tool for instant mobile alerting. It is designed to effectively alert and notify incident response teams like firefighters, emergency teams, IT Ops or Security Ops staff, field service technicians and maintenance engineers. SIGNL4 adds critical mobile alerting to your services and systems in no time. It bridges the ‘last mile’ from IT and IoT systems, machines and sensors to engineers, IT staff and workers ‘in the field’ and accelerates response up to 10x. SIGNL4 notifies staff on duty through targeted and persistent mobile push, text messages and voice calls with acknowledgement, tracking and escalation. It provides for convenient on-call duty and shift scheduling to reliably delivers the right information to the right people at the right time – anywhere. SIGNL4 enables mission-critical systems in IT, IoT, on the shop floor and in hundred other areas to automatically notify the right people when response time matters. SIGNL4 provides simple and convenient interfaces like email and webhooks to quickly connect systems like IT monitoring, IT service management, IoT devices, SCADA systems, security cameras and more. We have verified 150+ 3rd party integrations. SIGNL4 enables to: * Reliably and persistently dispatch critical alerts and work items to field staff, maintenance engineers and mobile workforce * Automate alerting/escalation processes by linking machines, IT or any other application to the right person at the right time * Accelerate and ensure response by providing persistent notifications, response tracking and escalations * Manage timely availability of operations teams (on-call duties, shifts) to route alerts automatically * Link any system directly to staff in charge. Consolidate events and alerts from multiple sources. Create a single pane of glass for critical information SIGNL4 provides: * Designed for critical operations with a new visual experience including a native 'darkmode' * Persistent and trackable alert notifications by mobile push, voice calls and text * Automated escalations based on target response times * Scheduled and ad-hoc on-call duty and shift management * Shared annotations to alerts and audit trails * Raising of alerts from the mobile app * Integrated mobile chat * Alert notifications to your entire team or team members on duty * Custom sounds for your critical alerts * One-touch connect with your team members * Monitors, tracks and reports your hours spend on duty (CSV download) * Complete audit trails of all notifications and response (CSV download) * 150+ verified integrations and comprehensive API for 3rd party tools How can you trigger alerts and notifications? * Send an email or call our webhook (REST API) * From IT Monitoring systems like PRTG, Zabbix, CheckMK, SCOM, Solarwinds, Dynatrace, Datadog, Grafana, Icinga, Nagios, BMC, Netapp, New Relic, Splunk * From ITSM systems like ConnectWise, ServiceNow, Freshdesk, Freshservice, SMAX, Topdesk, Remedy * From IT Security systems like Azure Sentinel, Azure Security, Sophos * From automation platforms like Zapier, Microsoft PowerAutomate, Node-Red, UIPath * From IoT and OT like Wonderware, Siemens, zenon, IXON, Telekom IoT Service Button and many other SCADA and MES * From any systems capable of sending email or calling a webhook * In-app 1-click alert trigger with automated geo-location * Use your web browser to send alerts to your team Note: You need a SIGNL4 account to use this app and some features depend on your SIGNL4 plan.

Security & authenticity

Security rating: Trusted

Signing certificate

  • Certificate issued to “Derdack GmbH” The developer's name — though anyone can put any name in a certificate.

Store checks and file details

  • Developer signature verified Feb 25, 2025
  • Signed byCN=Matthes Derdack, OU=Research & Development, O=Derdack GmbH, L=Potsdam, ST=Brandenburg, C=DE
  • Signing certificate (SHA-1)84:61:B4:65:AD:5A:33:78:B0:CD:81:D8:6F:81:41:9F:04:B4:66:6B
  • File MD525e78a321e2d76f276ed03b767aacef6
  • 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 (23)

SIGNL4 – Mobile Alerting requests 23 permissions, 7 of them sensitive.

Required hardware & features

SIGNL4 – Mobile Alerting APK: questions and answers

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

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the SIGNL4 – Mobile Alerting APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is 25e78a321e2d76f276ed03b767aacef6.

Tags

More Business apps