“I would like to recommend SIGNL4. We have connected it to our Operations Manager environment so we can be as pro-active as possible, leading to less downtime of disrupted services.”



Solution Architect / ASAPCloud


Critical Alert Notifications that Work

SIGNL4 is an out-of-the-box cloud solution that enables operations and business teams to respond faster and more effectively to critical alerts, major incidents and urgent service requests. SIGNL4 reliably delivers the right information to the right people at the right time – anywhere. It notifies active staff on duty through targeted and persistent mobile push, text and voicecalls with acknowledgement, tracking and escalation. SIGNL4 enables technical systems in IoT, on the shop floor and in hundred other areas to connect and communicate with the right people.


A new Mobile Alerting Experience

SIGNL4 focuses on the essence of critical alerting and service dispatching. It has been especially designed for critical operations and features for instance a native ‘darkmode’. It is lightweight but very effective. SIGNL4 is a modern B2B app – visual and easy to use.

Mobile Alert Management

Never miss a critical Alert

SIGNL4 notifies your team members on duty persistently by push, text and voice call until an alert is acknowledged and confirmed by a single or multiple persons. If there is no response within a certain time (“target response time”), team managers will be notified automatically.

Persistent Notifications

Alerting on your terms

SIGNL4 provides for an unrivalled notification experience. Define the sequence of push, text and voice calls. Choose the ringtone that is most effective. Enable persistent notification for your team and select the proper channel. And override the hardware mute button on your iPhone.

Notification Pattern

Alert Routing & Duty Management with a single Touch

Team members can go on and off duty with a single touch. The SIGNL4 duty assistant reminds on duty hand-overs. All hours spent on duty are automatically logged and reported. Once users checked in for duty, alerts are automatically routed to them. If they are not on duty, they won’t get alerted.

Automated Alert Routing

Duty & Shift Scheduling in your browser

Conveniently schedule your team’s shifts and on-call duties from any webbrowser and with a few mouse-clicks and drag&drop. SIGNL4 scheduling covers any scenario. It comes with minimum staffing level monitoring and post-shift reports for a digital hand-over.

Scheduling in SIGNL4

Tracking and Ownership

SIGNL4 provides for alert ownership transparency. Alert confirmations and annotations are visible in real-time throughout the entire team avoiding waste and following up on who takes care of what.


Rich and Augmented Alerts

Enrich your alerts with great content including text parameters, images, sound files, weblinks and maps. Either use the open APIs to deliver your content or use the built-in capabilities to augment alerts with text, color, icon, maps and push sound.


Anywhere Collaboration

SIGNL4 provides a unique incident-related mobile chatops feature for anywhere collaboration. Each alert creates a persistent chat room and team members chat and share annotations in real-time. So, everybody can contribute from anywhere to solving a critical problem or incident. On top, we integrate with Microsoft Teams and Slack.

Shared mobile Annotations

Connect your Systems with Ease

Integrates seamlessly with hundreds of applications (see our growing list here). On top, each team has an associated, dedicated email address you can use to raise alerts. Or use the webhook or REST API to connect any system. And as SIGNL4 is a cloud solution, you can simply download the app and you’re good to go.


Customize and personalize

You can customize SIGNL4 to meet your individual alerting needs and to create actionable alerts. And personalization options make SIGNL4 even more powerful. Choose custom notifications sounds, upload a personal picture and a team picture to make it ‘your’ SIGNL4.


* Features can be subject to a chosen plan

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SIGNL4 explained in 8 minutes

Mobile Alerting with SIGNL4

Alerts in IT, OT, IoT and Business Apps

Secure Connection and automated Delivery

Persistent Notifications with Tracking, Escalation and Confirmation to Staff on Duty

How SIGNL4 impacts Operations

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SIGNL4 on Google Play

SIGNL4 on Apple iTunes

Get started

SIGNL4 on Google Play

SIGNL4 on Apple iTunes