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Malwarebytes vs Avast Free Antivirus: catalog facts
Malwarebytes	Avast Free Antivirus
Freemium A free scanner is available; real-time protection, VPN and scam detection are part of paid…	Freemium The antivirus is free; Avast sells a VPN and other paid products.
Windows, macOS, Android, iOS, Browser extension	Windows, macOS, Android
Available on Windows, macOS, Android and iOS Combines malware scanning, VPN and scam detection	Free antivirus from a large vendor Available for Windows, macOS and Android
Most protection features require a paid plan Closed source	Closed source Promotes paid products from within the free offer
Downloadable app, Browser extension	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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