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Tweaking.com Windows Repair vs System Mechanic: catalog facts
Tweaking.com Windows Repair	System Mechanic
Freemium Free version available; a premium plan unlocks advanced repairs.	Paid Paid license, listed at $54.95 and often discounted.
Windows	Windows
Scans and lists Windows problems before fixing them Backs up registry and permissions and creates restore points	Combines junk cleanup, startup management and privacy wiping Automated maintenance through ActiveCare
Windows only Advanced repairs require the premium plan	Windows only Closed source and paid
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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 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.