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GPG Suite vs OpenKeychain: catalog facts
GPG Suite	OpenKeychain
Freemium Downloads are free; the GPG Mail extension needs a paid yearly support plan after a 30-day…	Free Free and open source, supported by donations.
macOS	Android
Encrypt, sign and verify files and messages on a Mac GPG Keychain app for managing OpenPGP keys	Compatible with OpenPGP software on other platforms Provides encryption to other Android apps such as K-9 Mail
macOS only GPG Mail requires a paid subscription	Android only Using OpenPGP keys well requires some understanding of how key exchange works
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.