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Authy vs 2FAS: catalog facts
Authy	2FAS
Free Free to use for consumers.	Free Free and open source. Some components are source-available.
Android, iOS	Android, iOS, Browser extension
Encrypted backup and multi-device sync, which many authenticators lack	Browser extension approves codes on the phone instead of typing them Encrypted backups to your own iCloud or Google Drive account
Desktop applications were retired; only mobile is supported Account recovery is tied to a phone number, which is a known attack surface	Mobile-first; there is no standalone desktop app Push approval needs the browser extension installed on each machine
Downloadable app	Downloadable app, Browser extension
Closed source	Open 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 22, 2026

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