Compare software

Proton VPN vs Avast SecureLine VPN: catalog facts
Proton VPNAvast SecureLine VPN
Freemium

The free tier has no data cap but limited countries and speeds. Paid plans add more…

Paid

Paid subscription, with a free trial available for download.

Windows, macOS, Linux, Android, iOS, Browser extension Windows, macOS, Android, iOS, Browser extension
  • A free tier with no data cap and no advertising
  • Clients are open source on every platform and independently audited
  • Apps for desktop and mobile devices
  • Free trial before paying
  • An account is required, even for the free tier
  • Free tier covers few countries and slows down at peak times
  • Closed source, so the client cannot be independently audited
  • Requires trusting Avast with your traffic
Downloadable app, Browser extension Downloadable app, Hosted service, Browser extension
Open source Closed source
License: GPL-3.0 License not stated
Account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked September 24, 2026

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