No. 10 of 28 ·IT Incident Management Software

SIGNL4

Web · Android · iPhone · API · paid plans from $9/mo

Freedom report

Three barsScore 6.6

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

SIGNL4 is ranked #10 of 28 in IT incident management software on Freedom251. It runs on Android, API, iOS, Web. There is a free plan. A free trial is offered. Paid plans start at $9/mo.

SIGNL4 plans and pricing

All plans

Starter Free up to 5 users · push alerts · native mobile app · ad-hoc duty management · email, webhook, REST API signl4.com · 5 Oct 2026

Notify & Connect $9/mo per user; billed monthly Starter features · text and voice alerts · persistent notifications · ChatOps · chat and email support signl4.com · 5 Oct 2026

Optimize $15/mo per user/month with annual subscription; $19 per user/month with monthly payment Notify & Connect features · automated escalations · duty and shift scheduling · AI Ops and AI Alerting signl4.com · 5 Oct 2026

Maximize $25/mo per user/month with annual subscription; $29 per user/month with monthly payment Optimize features · live call routing · audit logs · SCIM provisioning · priority support · 99.95% SLA signl4.com · 5 Oct 2026

Compared on IT incident management software

Free plan: Yes
Paid from: $9/user/mo
On-call scheduling: Yes
Escalation policies: Yes
Post-incident reviews: Yes
Stakeholder updates: Yes
ChatOps incident actions: Yes

Best SIGNL4 alternatives

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The record

Product: SIGNL4 is a cloud-based incident management and alerting platform for the incident lifecycle.
Alerting: It sends alert notifications by push, text, voice, and email, with tracking and escalations.
Event handling: Its event processing engine filters alert noise, deduplicates repetitive signals, and can delay non-critical alerts for auto-recovery.
Incident response: The platform supports targeted mobile alerts, on-call scheduling, team collaboration, escalation tracking, and mobile remediation.
Integrations: SIGNL4 says it has more than 200 verified and tested third-party integrations and supports email, webhooks, and REST API.
Examples: Its listed top integrations include Checkmk, ConnectWise, Icinga, Kaseya, Microsoft Sentinel, Microsoft Teams, PRTG, ServiceNow, and Zabbix.
Security and compliance: The Trust Center lists GDPR, ISO/IEC 27001:2022, TISAX, DORA, and EU AI Act compliance topics and provides access to security documentation by request.
Trial: The 30-day free trial includes Maximize features for up to 10 users, requires no credit card, and includes communication costs.
Trial support: Free support is available during the trial through integrated chat and the online support portal.
Customer fit: SIGNL4 describes the trial as built for teams responsible for mission-critical systems and highlights IT and OT response use cases.
Commercial availability: Commercial subscriptions are offered exclusively to businesses and public institutions, not private users.
Company: Derdack says it was founded in 1999 and describes SIGNL4 as its cloud-based SaaS solution.
Price from: $9/mo

Where it ranks on Freedom251

Best IT Incident Management Software in 2026#10 of 28

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Sources

signl4.com/incident-management/· checked 5 Oct 2026
signl4.com/integrations-api/· checked 5 Oct 2026
trust.signl4.com· checked 5 Oct 2026
signl4.com/free-trial-test/· checked 5 Oct 2026
signl4.com/pricing/· checked 5 Oct 2026
signl4.com/about-signl4/· checked 5 Oct 2026