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OpenKeychain vs Sequoia PGP: catalog facts
OpenKeychain	Sequoia PGP
Free Free and open source, supported by donations.	Free Free and open source.
Android	Linux, Command line
Compatible with OpenPGP software on other platforms Provides encryption to other Android apps such as K-9 Mail	Written in memory-safe Rust Usable both as a library and through the sq command-line tool
Android only Using OpenPGP keys well requires some understanding of how key exchange works	Command-line only, with no graphical interface Much of the project is aimed at developers rather than end users
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: LGPL-2.0-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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