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Ptyxis vs Black Box: catalog facts
Ptyxis	Black Box
Free Free and open source under the GPLv3.	Free Free and open source under the GPL-3.0 licence.
Linux	Linux
Built-in awareness of Podman, Toolbox and Distrobox containers Native GTK interface that fits GNOME	Native GTK 4 and libadwaita interface Uses the established VTE terminal engine
Linux only Container features matter most on container-based setups	Linux only Releases are infrequent
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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