nostr:nevent1qqsqcuvclgekv70rqye5g30xtajklpqemfeq34yldj05p9yh77ghasqpp4mhxue69uhkummn9ekx7mqpz3mhxue69uhhyetvv9ujuerpd46hxtnfdupzqstv5xf654zghrx2ruykg2q8wewvpm3fjcyljuklqc2vlw829u43qvzqqqqqqywxtgtm

I didn't get any replies, so I went out to search myself. Here's what I found:

Linux:

- opensnitch

Very similar to Little Snitch. To run on NixOS, add services.opensnitch.enable = true; and add opensnitch-ui to your packages

Homepage: https://github.com/evilsocket/opensnitch

- Portmaster

Open source, looks more advanced than LS, offer paid plan. Haven't tried yet since it's not available in nixpkgs.

Homepage: https://safing.io

Android:

- NetGuard

Open source, simple - allows blocking WiFi/mobile/both networking for single apps. Acts like a virtual VPN. F-Droid available afaik.

Homepage: https://netguard.me/

- GlassWire:

Free, analyses your network usage per App. App firewall like NetGuard available in paid plan. Also available for Windows

Homepage: https://www.glasswire.com/

Trying both at the moment, unless you pay for GlassWire NetGuard makes sense I guess.

Bonus: Mac OS

- LuLu

Open Source alternative to Little Snitch. Available on homebrew. Haven't tried yet but this will land on my work mac next week.

Homepage: https://github.com/objective-see/LuLu

I hope this may help if you're on the same quest :) Stop the snooping #asknostr