SIGNL4 - Mobile Alerting 4+

Critical Alert Notifications

Derdack GmbH

Designed for iPhone

    • 4.6 • 87 Ratings
    • Free

iPhone Screenshots


In case of critical incidents SIGNL4® notifies operations and emergency teams by persistent push, text and voice calls with acknowledgement, tracking and escalation.

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+ integrations with 3rd party tools.

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 critical infrastructure 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:
* A new visual experience for critical alerts
* 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)
* Comprehensive API for 3rd party integrations

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
* Using Amazon Alexa (voice recognition)
* 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.

What’s New

Version 4.1.0

API overview displays E-Mail and Webhook endpoints again.
Various fixes and performance improvements.

Ratings and Reviews

4.6 out of 5
87 Ratings

87 Ratings

JJExperience ,

SIGNL4 is how alerting should feel

Very visual and easy to use - you can customize your experience and I love the simple punch in and punch out. The design makes it fun to use and the fact that it is mainly app based means that you can finally really carry your mobile alerting in your pocket. Love it and can only recommend it...

filediante ,

Super easy and effective!

I use SIGNL4 to receive critical alerts that cannot be missed. It never fails to send alerts and the app is very user friendly! I highly recommend it.

App Privacy

The developer, Derdack GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • Contact Info
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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