Compare software

Yubico Authenticator vs Google Authenticator: catalog facts
Yubico Authenticator	Google Authenticator
Free The app is free; it requires a YubiKey, which is bought separately.	Free Free to download and use.
Windows, macOS, Linux, Android, iOS	Android, iOS
Secrets stay on the hardware key rather than the device Same codes available on any machine where the key is plugged in	Generates codes without a network connection Optional sync of codes across devices via a Google Account
Requires a YubiKey Losing the key loses access to the stored codes unless you have a backup	Cloud sync ties your codes to a Google Account Not open source
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	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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