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Mobile Alerting and Anywhere Incident Response
Respond to Incidents and Emergencies like a Superhero
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When critical Systems fail, don't hope for the best... respond 10x faster!
Stay ahead of incidents with SIGNL4 – the smarter way to handle mobile alerting.
SIGNL4 automates the delivery of critical alerts, ensures the right people get notified at the right time, and empowers your operations team to respond and resolve issues from anywhere.
Faster Incident Response
%
Less Unexpected Downtime
%
Less False Alerts
A Proven Solution
1000+ Customers worldwide
iOS and Android App
Alerting and Incident Management. Anywhere.
The SIGNL4 mobile app for iOS and Android is your unified command center for managing critical alerts and incidents – anytime, anywhere.
It transforms raw event data into actionable, context-rich alerts with visual categorization, embedded links, location maps, images, videos, and more.
Empower your response teams to take immediate action and stay connected wherever they are.
Approved
SIGNL4 rates 4-5 stars in app stores and on review sites like Capterra & G2.
Ultra-Reliable, Instant Mobile Alerting
Automated Mobile Alerting
SIGNL4 delivers lightning-fast notifications via push, SMS, email, and voice – ensuring your team can respond when it matters most. With intelligent time-based notification profiles, real-time delivery tracking, alert acknowledgments, and automated escalation workflows, SIGNL4 makes sure no alert goes unnoticed.
Customize push tones, override mute settings, and take advantage of a powerful set of mobile alerting features built for high-stakes environments.
Intelligent On-Call Scheduling and Shift Management
On-Call Management
SIGNL4 redefines how teams handle on-call duty with powerful, browser-based scheduling that eliminates the chaos of outdated spreadsheets.
Alerts are automatically routed to the right people at exactly the right time, while a real-time dashboard gives you instant visibility into who’s on duty – anywhere, anytime.
Bring modern, intelligent on-call scheduling and shift orchestration to the frontlines of your critical operations.
Always Connected. Always Responsive.
After-Hours Call Routing
SIGNL4 transforms after-hours communication with an enterprise-ready solution that ensures critical calls are never missed.
It intelligently routes live voice calls to on-duty staff and instantly alerts teams to new voicemails, so nothing slips through the cracks.
AI-Powered Alerting
AIOps
SIGNL4 applies the power of AIOps to make incident response smarter and faster – across both IT and OT environments.
From noise reduction and intelligent alert routing to AI-generated summaries and automated shift planning, SIGNL4 brings intelligence and efficiency to every step of the incident lifecycle.
Seamless, Scalable Alerting Integrations
200+ Integrations
SIGNL4 connects to almost any system – using email, webhooks, REST APIs, and powerful two-way connectors – to bring your alerts together in one place. It unifies events and notifications from across IT operations, IoT environments, industrial systems, and more into a single, actionable stream. With 200+ tested and trusted integrations, SIGNL4 delivers fast setup, effortless compatibility, and rock-solid, enterprise-grade reliability.
“If you’re looking for a lightweight, effective way to manage operational alerts without overcomplicating things, SIGNL4 delivers. It’s easy to implement, highly reliable, and scalable as your use cases grow.”
“SIGNL4’s reliable alert notification system has eliminated manual processes, delivering instant cost savings and allowing our team to focus on what matters most.”
“It is a very nice cloud based tool with a lot of functions. Every alert can have its own category for a better overview. Excellent calender function. But the best is the easy to use app.”
Next Steps
Discover what SIGNL4 can do for your operations – and start your free 30-day trial of powerful mobile alerting today.
Certified Security
SIGNL4 keeps your sensitive and confidential data safe. Derdack GmbH is ISO/IEC 27001:2022 and TISAX certified, meeting some of the highest standards in information security and data protection.
What’s new: Insights and Use Cases
What Our Customers Say: The Real Value of Incident Response Tools
We’ve put together a selection of use cases from a wide range of industries and applications. Enjoy exploring how different teams use our incident response tool in practice.
Closing the Year: What 2025 Taught Us About Resilience
It is that time of the year again. Time to reflect and look back at 2025. And I find myself thinking less about platforms and features – and more about the people behind them.
What Is IT Incident Response?
This article explores how IT incident response works today, why it matters, and how teams can build stronger processes, technologies, and communication structures to protect systems and data from outages, intrusions, and other threats.
Why SIGNL4?
Unlike traditional notification tools, SIGNL4 delivers automated, targeted, and persistent alerts that cut through the noise – reaching the right people at the right time via push, SMS, or voice. With smart alert filtering, duty scheduling, acknowledgment tracking, automated escalations, and seamless integrations across IT, IoT, OT, and operational systems, SIGNL4 ensures critical information gets from alert to action without delay.
Its intuitive mobile experience, enterprise-grade security, and real-time collaboration features empower teams to stay in control, reduce downtime, and boost operational efficiency – anytime, anywhere.