Compare software

Avast Free AntivirusMoonlock
Freemium

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

 Paid

Paid software with a 7-day free trial.

Windows, macOS, Android macOS
  • Free antivirus from a large vendor
  • Available for Windows, macOS and Android
  • Real-time background scanning, including Mail attachments
  • Explains each detected threat and suggested next steps
  • Closed source
  • Promotes paid products from within the free offer
  • macOS only
  • Paid after the trial
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 Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

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