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Bitmask vs Calyx VPN: catalog facts
Bitmask	Calyx VPN
Free Free to use and open source under the GPL-3.0 licence.	Free Free, funded by Calyx Institute members and donations.
Android	Android
No account needed and automatic configuration Built-in tools for bypassing censorship	No account needed No logging, according to the provider
Limited to a small set of compatible providers Speed and server choice depend on volunteer-run providers	Only Calyx Institute servers are available Android only
Downloadable app	Downloadable app, Hosted service
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account 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.