Mobile alerting app that delivers alerts to the team on duty by push, SMS and voice call, with acknowledgements, duty scheduling and many monitoring integrations.
Pricing and hosting
- Pricing
- Free plan
- Free plan
- Up to 5 users, push alerts
- Open source
- No
- Self-hosted
- No
- Launched
- 2017
- Status
- Active
- Website
- signl4.com
Plans and prices change; check the tool's own site before you decide.
What it does
On-call and alert escalation checklist
10 of 12 confirmed in SIGNL4's own documentation. The same checklist is used for every tool in On-call.
- On-call schedules Yes
- Layered or follow-the-sun schedules Not confirmed
- Overrides and swaps Yes
- Escalation policies Yes
- Escalation repeats Not confirmed
- Phone call alerts Yes
- SMS alerts Yes
- Mobile app Yes
- Acknowledge from chat Yes
- Heartbeat checks Yes
- Alert grouping Yes
- Maintenance windows Yes
Notifications repeat until acknowledged, but no documented repeat of the whole escalation chain. Maintenance via muting alert categories.
Checked against: signl4.com, signl4.com (2), signl4.com (3), github.com, docs.signl4.com
Notification delivery checklist
8 of 8 confirmed in SIGNL4's own documentation. The same checklist is used for every tool in Notifications.
- Mobile push Yes
- SMS Yes
- Voice calls Yes
- Email Yes
- Chat apps Yes
- HTTP API or webhook ingest Yes
- Bypass silent mode Yes
- Acknowledgement Yes
Push with mute (DND) override, SMS/voice, email, Teams/Slack, inbound webhook/REST API, and acknowledgement.
Checked against: signl4.com, signl4.com (2), github.com
Alternatives to SIGNL4
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