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y-cruncher vs OCCT: catalog facts
y-cruncher	OCCT
Free Freeware, free to download and use.	Freemium Free for individuals, with offerings for professional and business use.
Windows, Linux, Command line	Windows, Linux
Scales across many CPU cores Established benchmark with published fastest times	Stress testing, benchmarking and monitoring in one tool Free for individual users
Closed source freeware Large computations need a lot of memory and disk space	Closed source Professional use is a separate offering
Downloadable app	Downloadable app
Closed source	Closed source
License: Freeware	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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