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Authy vs Yubico Authenticator: catalog facts
Authy	Yubico Authenticator
Free Free to use for consumers.	Free The app is free; it requires a YubiKey, which is bought separately.
Android, iOS	Windows, macOS, Linux, Android, iOS
Encrypted backup and multi-device sync, which many authenticators lack	Secrets stay on the hardware key rather than the device Same codes available on any machine where the key is plugged in
Desktop applications were retired; only mobile is supported Account recovery is tied to a phone number, which is a known attack surface	Requires a YubiKey Losing the key loses access to the stored codes unless you have a backup
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 24, 2026

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