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Secret Space Encryptor vs OpenKeychain: catalog facts
Secret Space Encryptor	OpenKeychain
Free Free to download.	Free Free and open source, supported by donations.
Windows, macOS, Linux, Android	Android
Password manager and file and text encryption in one Android app Desktop companion for files and text	Compatible with OpenPGP software on other platforms Provides encryption to other Android apps such as K-9 Mail
Main app is Android only; iOS versions are separate apps Developer site gives little detail	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
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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