Compare software

OpenSnitchNetGuard
Free

Free and open source under the GPL.

 Freemium

Free and open source. Some features are unlocked by an in-app purchase.

Linux Android
  • Prompts on every new outbound connection, so unexpected traffic becomes visible
  • Blocks ad, tracker and malware domains system-wide
  • Per-app blocking with separate Wi-Fi and mobile rules, without root
  • Live traffic log showing exactly what each app contacts
  • Linux only
  • The first days are a stream of prompts until your rules settle
  • Occupies the VPN slot, so it cannot run alongside a real VPN
  • Some features are unlocked by an in-app purchase
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-3.0
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 21, 2026

Checked September 22, 2026

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