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DriveDx vs CrystalDiskInfo: catalog facts
DriveDx	CrystalDiskInfo
Paid Paid license with a free trial download.	Free Free and open source under the MIT licence.
macOS	Windows
Detailed SMART health indicators for SSDs and HDDs Runs drive self-tests	Plain Good, Caution or Bad verdict on top of the raw S.M.A.R.T. table Supports NVMe, many USB enclosures and some Intel RAID setups
macOS only Paid after the trial	Windows only A Good verdict does not mean a drive cannot fail tomorrow
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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