SIGNL4
Incident management software
IT alerting software
Emergency notification software
Emergency software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if SIGNL4 and its alternatives fit your requirements.
$9.00 per user per month
Free TrialFree version
Small
Medium
Large
- Construction
- Agriculture, fishing, and forestry
- Manufacturing
What is SIGNL4
SIGNL4 is an IT alerting and on-call notification product that routes critical alerts from monitoring and business systems to mobile devices and escalates them until acknowledged. It targets IT operations, DevOps, and field service teams that need reliable after-hours alerting and coordinated incident response. The product emphasizes mobile-first alerting, duty scheduling, and integrations (including email/webhooks and common monitoring tools) to reduce time-to-acknowledge and support small to mid-sized teams.
Mobile-first alerting workflow
SIGNL4 centers its user experience on smartphone push notifications, SMS/voice options, and in-app acknowledgement. This design supports responders who are away from a desk and need to act quickly. The app-based workflow also enables basic collaboration actions (e.g., acknowledge, annotate, and hand off) directly from the phone.
Escalations and duty scheduling
The product includes on-call schedules, rotations, and escalation chains to ensure alerts reach a responsible person. It supports repeated notifications and multi-step escalation when an alert is not acknowledged. These capabilities align with common operational requirements for 24/7 coverage without requiring a full ITSM suite.
Broad integration options
SIGNL4 can ingest alerts through email and webhooks and provides connectors for common monitoring and automation tools. This makes it practical to deploy alongside existing observability stacks and ticketing processes. Compared with broader service management platforms, it focuses on alert ingestion and routing rather than end-to-end service desk workflows.
Limited ITSM case management
SIGNL4 focuses on alerting and escalation rather than full incident lifecycle management. Organizations that need native ticketing, change management, asset management, or complex request workflows typically require an additional ITSM platform. This can increase process fragmentation if teams expect a single system of record.
Reporting and analytics depth
Operational reporting is generally oriented around alert activity and response behavior rather than deep service analytics. Teams looking for advanced KPI dashboards, correlation, and service-level analytics may find the built-in reporting insufficient. In those cases, exporting data to external BI/analytics tools may be necessary.
Complexity at larger scale
As the number of teams, services, and routing rules grows, maintaining schedules, escalation policies, and integration mappings can become administratively heavy. Larger enterprises may require more granular governance, role separation, and configuration management than smaller alerting tools typically provide. This can lead to additional operational overhead for platform administrators.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Starter | $0.00 per month (for up to 5 users) | Free tier: Push alerts, native mobile app, ad-hoc duty management, 'Who is on call' dashboard, acknowledgements, Email/Webhook/REST API, Distribution Rules, Teams & Slack integration, SSO via 3rd party, Unlimited Teams. SMS/Voice are pay-per-use (see notes). |
| Notify & Connect | $9.00 per user/month | Everything in Starter plus: Text & Voice alerts included, Persistent notifications, ChatOps, Geolocations & Maps, Manual alerts from web or mobile, User roles, No limit for users & teams, Chat & Email support. |
| Optimize | $15.00 per user/month (annual billing) — $19 per user/month (monthly billing) | Everything in Notify & Connect plus: Automated escalations, Flood protection, Duty & shift scheduling, Post-shift reports, Calendar export, Remote actions, Rules with logical conditions, 2-way 3rd party connectors, AI Ops & AI Alerting. |
| Maximize | $25.00 per user/month (annual billing) — $29 per user/month (monthly billing) | Everything in Optimize plus: Live call routing, Voice mailbox with alerts, Dedicated phone number for inbound calls (optional $10/mo), Public 'Who is on call' dashboard, Audit logs, Custom data retention, User provisioning via SCIM, Priority support, SLA 99.95%. |
Notes:
- Prices shown on SIGNL4 pricing page are per user/month with annual subscription by default. Monthly payment prices are explicitly listed for Optimize ($19/mo) and Maximize ($29/mo).
- Starter plan supports up to 5 users free. SMS/text and voice calls on Starter are pay-per-use: 15¢ per text and 35¢ per voice call (country-dependent) as listed on the official pricing page.
- Dedicated phone number for inbound calls is an optional add-on listed at $10/mo on the official site.
- Official FAQ/support pages mention a 30-day free trial for the Maximize plan; one official page states the trial is for 10 users while another support article states 5 users (discrepancy in vendor docs). All information above is taken solely from SIGNL4's official website (pricing page and support articles).
Seller details
Derdack GmbH
Potsdam, Germany
Private
https://www.signl4.com/
https://x.com/signl4
https://www.linkedin.com/company/derdack/
