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GPG Suite vs PGPTool: catalog facts
GPG Suite	PGPTool
Freemium Downloads are free; the GPG Mail extension needs a paid yearly support plan after a 30-day…	Free Free to download and use.
macOS	Windows, macOS, Linux
Encrypt, sign and verify files and messages on a Mac GPG Keychain app for managing OpenPGP keys	Compatible with the OpenPGP specification Suggests encryption and decryption settings from previous actions
macOS only GPG Mail requires a paid subscription	Requires a separately installed Java Runtime Environment 17 or later Non-Oracle JREs need JAVA_HOME set or the ZIP package on Windows
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
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 October 2, 2026

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