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PagerTreeGoAlert
Paid

Subscription service; plans are listed on its pricing page.

 Free

Free and open source; you host it yourself.

Android, iOS, Web Web, Self-hosted
  • On-call schedules with escalation layers
  • Notifications by push, email, SMS, voice and chat
  • On-call rotations, schedules and escalation policies
  • Integrations with Grafana, Prometheus, Site24x7, Sensu and email
  • Hosted service only, with no self-hosted option
  • Aimed at teams rather than individuals
  • You must host and maintain the server yourself
  • Integration list is narrower than large commercial services
Downloadable app, Hosted service Self-hosted
Closed source Open source
License not stated License not stated
Account needed Not stated if an account is needed
Needs internet Not stated if it works offline

Checked September 24, 2026

Checked October 1, 2026

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