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GnuPG vs PGPony: catalog facts
GnuPG	PGPony
Free Free and open source under the GPL.	Free Free, with the source published under the Apache-2.0 licence.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Android, iOS
The reference free OpenPGP implementation, present everywhere Smartcard and hardware token support through its agent	Hardware key support over NFC with on-card key generation Interoperable with GnuPG and supports OpenPGP v6
Key management and the command line are famously unforgiving Defaults and trust models confuse newcomers into unsafe practice	Young project compared with OpenKeychain or GnuPG Post-quantum keys need recipients with compatible software
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: Apache-2.0
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 22, 2026	Official website Full listing and sources Checked October 2, 2026

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