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XX-Net vs Ultrasurf: catalog facts
XX-Net	Ultrasurf
Freemium The software is distributed free; the project also mentions paid plans.	Free Free to download and use.
Windows, macOS, Linux, Android, iOS	Windows
Traffic obfuscation designed to look like ordinary browser connections Portable, with no installation required	Traffic is disguised as ordinary TLS web traffic Small, portable download that needs little setup
Documentation is mainly in Chinese No license file is detected on the GitHub repository	Closed source, so its security claims cannot be independently audited Focused on getting past censorship rather than full VPN features
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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