Compare software

ZoneAlarmGlassWire
Freemium

Free firewall and free antivirus, with paid security suites.

 Freemium

A free version is available. Longer history and extra features require a paid licence.

Windows, macOS, Android, iOS Windows, Android
  • Free outbound firewall that controls program network access
  • Free antivirus option
  • Visual history makes it obvious which application started talking and when
  • Alerts on first connections and on changes to system network settings
  • Most extra protections require a paid suite
  • Closed source
  • Longer history retention and several features need a paid licence
  • Windows and Android only, closed source
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 October 1, 2026

Checked September 22, 2026

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