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Uptime.com vs Checkly: catalog facts
Uptime.com	Checkly
Paid Commercial monitoring service with paid plans.	Freemium Free to start, with paid plans for larger use.
Android, iOS, Web	Web, Command line
Website, API, cron job and real user monitoring in one service Unlimited email, SMS and Slack notifications	Monitors defined as code and kept in version control Uses standard Playwright for browser checks
Hosted only, with no self-hosted option Aimed at business monitoring rather than personal sites	Requires writing code, so less suited to non-developers Checks run on Checkly's hosted infrastructure
Downloadable app, Hosted service	Downloadable app, Hosted service
Closed source	Closed source
License not stated	License not stated
Account needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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