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LuLu vs Portmaster: catalog facts
LuLu	Portmaster
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Free and open source under the GPL 3.0. Network history search, per-app bandwidth and the…
macOS	Windows, Linux
Provides an open-source firewall interface for network access decisions.	Blocks known trackers and malware with no configuration Live list of every connection, attributed to the program that made it
Blocking the wrong connection can interrupt an application's features.	Windows and Linux only Network history search and bandwidth figures are paid features
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
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

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