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YASS vs Leaf: catalog facts
YASS	Leaf
Free The project is offered at no cost; the listed source has no asserted license.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Linux, Android, Command line	Windows, Command line
Supports Shadowsocks and NaiveProxy Includes both command-line and Qt graphical interfaces	Wide range of proxy protocols and transports QUIC, TLS, WebSocket and Reality support
The Windows XP build requires the Universal UCRT package.	No graphical interface; configured by file No release builds published on GitHub
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 2, 2026

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