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SpeedCurve vs CrUX Vis: catalog facts
SpeedCurve	CrUX Vis
Paid Commercial subscription service; demos are offered on request.	Free Free tool from Google.
Web	Web
Synthetic testing and real user monitoring in one place Tracks Core Web Vitals and custom timings over time	Uses real-user field data from Chrome Charts trends for a page or a whole origin
Paid service aimed at businesses More than an individual needs for occasional checks	Only covers sites with enough Chrome traffic to be in the report Shows measurements but does not run tests itself
Hosted service	Web application
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 24, 2026

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