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Psiphon vs VPN.ac: catalog facts
Psiphon	VPN.ac
Freemium Free to connect, with an optional subscription or PsiCash for ad-free, faster connections.	Paid Commercial subscription service; the research does not list current prices.
Windows, Android, iOS	Windows, macOS, Linux, Android, iOS, Browser extension
Several blocking-resilient transports that keep working where standard VPNs fail Free to use with no payment needed	Supports WireGuard, OpenVPN and obfuscated protocols Publishes per-location gateway counts and a node status page
The free tier shows ads and runs at lower speeds Traffic passes through servers run by Psiphon	Paid service with no free tier shown Fewer locations outside Europe and North America in the published list
Downloadable app	Downloadable app, Hosted service, Browser extension
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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