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HetrixTools vs updown.io: catalog facts
HetrixTools	updown.io
Freemium Free tier with 15 uptime and 32 blacklist monitors; paid plans add more.	Paid Pay-per-use pricing that scales linearly with check frequency; cards, PayPal, SEPA and…
Web	Web
Generous free tier for uptime and blacklist monitoring Checks from up to 12 locations	Check interval adjustable from 15 seconds to 1 hour Downtime confirmed from two locations before alerting
Hosted only, with no self-hosted option Requires an account	No free tier mentioned Hosted only, with no self-hosted option
Web application, Hosted service	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.