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SIGNL4 vs Grafana Cloud IRM: catalog facts
SIGNL4	Grafana Cloud IRM
Paid Commercial subscription service; see the SIGNL4 website for plans.	Freemium A free account is available; paid use is billed per active user.
Android, iOS, Web	Android, iOS, Web
Alerts by push, text, voice and email with escalation On-call scheduling and call routing in one service	On-call schedules, alert routing and incident response in one tool Mobile apps plus Slack and Microsoft Teams notifications
Hosted commercial service rather than self-hosted software Aimed at teams and organisations, not individuals	Hosted only, tied to Grafana Cloud Most useful for teams already on the Grafana stack
Downloadable app, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.