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Spike.sh vs GoAlert: catalog facts
Spike.sh	GoAlert
Paid Paid service with a 14-day free trial that needs no credit card.	Free Free and open source; you host it yourself.
Web	Web, Self-hosted
Alerts by phone, SMS, WhatsApp and Slack Rule-based routing on title, severity and payload priority	On-call rotations, schedules and escalation policies Integrations with Grafana, Prometheus, Site24x7, Sensu and email
Hosted service only Paid after the trial period	You must host and maintain the server yourself Integration list is narrower than large commercial services
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
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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