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GoAlertPagerTree
Free

Free and open source; you host it yourself.

 Paid

Subscription service; plans are listed on its pricing page.

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

Checked October 1, 2026

Checked September 24, 2026

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