When critical Systems fail

Respond like a Superhero


Mobile Alerting and Anywhere Incident Management

Stay ahead of critical incidents

When critical systems fail, incidents happen or urgent services need to be provided, SIGNL4 bridges the ‘last mile’ to your staff, engineers, IT admins and workers ‘in the field’. It adds real-time mobile alerting to your services, systems and processes in no time.

SIGNL4 notifies through persistent mobile push, text and voice calls with acknowledgement, tracking and escalation. Integrated duty and shift scheduling ensures the right people are alerted at the right time. Its mobile app enables an anywhere response to incidents, from managing alerts to communicating with experts and taking action with single tap on your phone.

Through convenient interfaces like email and webhooks, SIGNL4 adds mobile alerting and incident response capabilities to IT, IoT, SCADA and other technical systems.

SIGNL4 thus provides for an up to 10x faster and effective response to critical alerts, major incidents and urgent service requests.

Our Customers









“The app is a great solution for alerting in production or other environments. We were able to easily connect it to AWS CloudFront and other monitoring systems. The support is great and you get personal attention.”

SIGNL4 Review


/ Zoomin Software


Intuitive. Simple. Effective.

Reliable Alerting

Reliable and super-fast delivery of alerts via push, text and voice calls with tracking, acknowledgement and escalations

Powerful mobile app

Inuitive mobile app for Android and iPhone. Customizable push sounds and alert categories. Rich alerts with links, GPS maps and much more. Integrated mobile chat.

Built-in shift and duty scheduling

Convenient scheduling of shifts and on-call duty in your browser. Plus ad-hoc duty management from the mobile app. Routes alerts to the right people at the right time

Call Routing

Provide a 24/7 phone number and have inbound calls automatically routed to staff on duty. Or use the integrated voice mailbox with on-call alerting

Track and report in real-time

Real-time tracking of alerts, acknowledgement, annotations and resolution. Both in mobile app and browser. Downloadable CSV reports for duty hours.

150+ Integrations

Integrates with any system via Email, Webhook, REST and 2-way connectors. Consolidates events and alerts from multiple sources in IT, IoT, manufacturing, etc. Over 150 tested and verified integrations.

Use Cases and Solutions

Mobile Alerting and Anywhere Incident Management

What's new at SIGNL4

How to use the Rest API to manage SIGNL4 categories

September 20, 2023

August 2023 update – calendar export and video attachments in the mobile app

August 23, 2023

July 2023 Update – New user management, Duty stand-ins, incident response in voice-calls and simplified SSO

July 19, 2023