Compare software

NetGuardOpenSnitch
Freemium

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

 Free

Free and open source under the GPL.

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

Checked September 22, 2026

Checked September 21, 2026

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