Compare software

Stratum vs Authy: catalog facts
Stratum	Authy
Free Free and open source under the GPL 3.0 license.	Free Free to use for consumers.
Android	Android, iOS
Encrypted backups with import from other apps and export at any time Supports TOTP, HOTP and mOTP	Encrypted backup and multi-device sync, which many authenticators lack
Android only, with no iOS or desktop version Only handles one-time codes, not passwords	Desktop applications were retired; only mobile is supported Account recovery is tied to a phone number, which is a known attack surface
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	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

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