Compare software

Avast Free AntivirusAvira Free Security
Freemium

The antivirus is free; Avast sells a VPN and other paid products.

 Freemium

Free tier with paid Internet Security and Prime plans.

Windows, macOS, Android Windows, macOS, Android, iOS
  • Free antivirus from a large vendor
  • Available for Windows, macOS and Android
  • Real-time antivirus at no cost
  • Extra tools like software updater and browser safety
  • Closed source
  • Promotes paid products from within the free offer
  • Closed source
  • Upsells paid plans and premium tools
Downloadable app 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 Needs internet

Checked September 23, 2026

Checked September 24, 2026

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