Compare software

Stratum vs Google Authenticator: catalog facts
Stratum	Google Authenticator
Free Free and open source under the GPL 3.0 license.	Free Free to download and use.
Android	Android, iOS
Encrypted backups with import from other apps and export at any time Supports TOTP, HOTP and mOTP	Generates codes without a network connection Optional sync of codes across devices via a Google Account
Android only, with no iOS or desktop version Only handles one-time codes, not passwords	Cloud sync ties your codes to a Google Account Not open source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
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.