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Calyx VPN

Free VPN Service offered by The Calyx Institute.

  • Free, with trade-offs
  • Android
  • Open source

Overview

Calyx VPN is a VPN client, available on Android.

Features described in its F-Droid listing: multi-user support.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “Free VPN Service offered by The Calyx Institute” — F-Droid, 10 November 2026
  • “Anonymous VPN: No user accounts and no logging.” — F-Droid, 10 November 2026

At a glance

Calyx VPN is free, with trade-offs: it relies on a non-free online service.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • No advertising
  • Commercial use allowed

Weaknesses

  • Few recent updates
  • Flagged by F-Droid: relies on a non-free online service

Sources and checks

  • Facts collected from Official plan pages (pricing, licence, terms) (commercial use) —
  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from F-Droid — F-Droid (citation courte)

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