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Calyx VPN vs Cloudflare WARP: catalog facts
Calyx VPN	Cloudflare WARP
Free Free, funded by Calyx Institute members and donations.	Freemium Free to use. WARP+ is a paid tier with optimised routing, and the same client is used for…
Android	Windows, macOS, Linux, Android, iOS
No account needed No logging, according to the provider	Free, with no data cap and no advertising Often faster than no tunnel at all thanks to Cloudflare's network
Only Calyx Institute servers are available Android only	Does not change your apparent country, so it is not a geo-unblocking tool Cloudflare sees the traffic your provider used to see
Downloadable app, Hosted service	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account needed
Needs internet	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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