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KGpgOpenKeychain
Free

Free and open source under the GPL.

 Free

Free and open source, supported by donations.

Linux Android
  • Simple interface over GnuPG
  • Shows signatures, trust and expiry at a glance
  • Compatible with OpenPGP software on other platforms
  • Provides encryption to other Android apps such as K-9 Mail
  • Linux only
  • Fewer features than Kleopatra, with no S/MIME support
  • Android only
  • Using OpenPGP keys well requires some understanding of how key exchange works
Downloadable app Downloadable app
Open source Open source
License: GPL-2.0-or-later License: GPL-3.0
No account needed No account needed
Works offline Works offline

Checked September 24, 2026

Checked September 23, 2026

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