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Mobile app · Internet & communication

Kryfo

Private messages over Tor. No phone number, no account, no metadata trail.

  • Completely free
  • Android
  • Open source
  • No account

Overview

Kryfo is a messaging mobile app, available on Android.

Features described in its F-Droid listing and in its GitHub repository: Tor network support, end-to-end encryption and data encryption.

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
  • “Alpha Private Messenger Over Tor” — GitHub, 10 November 2026
  • “An encrypted messenger for Android that works without a phone number, an email address, or an account.” — official website, 10 November 2026
  • “messages are end to end encrypted with the signal protocol, post-quantum between 0.6 phones, and travel over tor by default.” — GitHub, 10 November 2026
  • “Search across all your chats, kept in the encrypted database” — F-Droid, 10 November 2026

At a glance

Kryfo is completely free: it is open source software, and every feature is available without paying or subscribing.

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 account needed
  • No advertising
  • Commercial use allowed

Sources and checks

  • Facts collected from GitHub (credit card, account, source code, publisher, licence, free status, platforms, commercial use) —
  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Last technical check: 5 November 2026
  • Description from F-Droid — F-Droid (citation courte)

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