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StableBit Scanner vs PassMark DiskCheckup: catalog facts
StableBit Scanner	PassMark DiskCheckup
Paid Costs $29.95, with a fully functional 30-day free trial.	Free Free to download and use.
Windows	Windows
Continuous background surface scans of all drives Health monitoring with alerts when parameters change	Shows SMART values alongside their thresholds Predicts when an attribute may cross its threshold
Windows only Paid after the 30-day trial	Windows only Closed source
Downloadable app	Downloadable app
Closed source	Closed source
License: Proprietary	License: Proprietary
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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