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RustNet vs Picosnitch: catalog facts
RustNet	Picosnitch
Free The software is free under its open-source licence. Hosting, hardware and external…	Free Free, with source code published on GitHub.
Windows, macOS, Linux, Android, Command line	Linux
It shows TCP, UDP and QUIC connections with the owning process and detected protocol, sandboxed by default and…	Alerts on new connecting or modified programs Per-executable bandwidth history with several breakdowns
It is a young project, and deep packet inspection still needs elevated capture permissions.	Linux only Monitors and logs traffic but does not block it
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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