Calyx VPN review
A no-account, open-source Android VPN with useful leak prevention and bridge mode.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Calyx VPN is a free VPN service operated by The Calyx Institute for privacy-conscious Android users. It encrypts network traffic and routes it through Calyx-hosted VPN infrastructure, providing an anonymous IP address without requiring an account. The Android application is based on the Bitmask platform and is distributed through F-Droid, making it suited to users who prefer open-source software and an account-free setup.
Privacy and transparency are its clearest strengths. Calyx VPN uses a no-logs policy, and both its client and server software are open source. The service includes DNS-leak prevention, while IPv6-leak prevention is available on rooted devices. Optional bridge mode adds a way to route connections through a censorship-circumvention bridge, which gives the app a narrower but meaningful use case beyond ordinary traffic encryption.
The main trade-off is platform scope: Calyx VPN is available on Android, rather than across a broader range of listed platforms. Its speed limit is unspecified, so the published plan information does not establish a performance ceiling. CalyxVPN is also temporarily excluded from the CalyxOS Android 16 test build while its organization rebuilds capacity and infrastructure to maintain and develop the app. Choose it if you want a free, open-source Android VPN without user accounts; choose an alternative if you need support beyond Android or require a stated speed limit.
Calyx VPN pros and cons
- Where it wins
- Free service with no user accounts required
- Open-source client and server software
- DNS-leak prevention and optional bridge mode
- Where it doesn't
- Android-only availability
- Speed limit is unspecified
- IPv6-leak prevention requires a rooted device
Calyx VPN fact sheet, pricing and score →
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
Last updated · How we research and update