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Crucible vs Prime95: catalog facts
Crucible	Prime95
Free Free and open source under the GPL-3.0-or-later licence.	Free Free to download and use under the GIMPS free software license.
Linux	Windows, macOS, Linux
Specs view and stress test in one simple app Live CPU temperature and usage during tests	Standard, demanding CPU and memory stress test Builds for Windows, macOS, Linux and FreeBSD
Small, young project with few contributors Linux only	Not an OSI open source license Dated interface
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License: GIMPS free software license
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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