GACW - 2FA TOTP Auth Client for Wear is a paid Android app that enables users to generate tokens for a website where 2FA is enabled. The app supports Samsung Gear, Galaxy, Wear OS, Fitbit Versa, and Ionic smartwatches. It does not generate QR codes but can scan a QR code generated by the website. The watch app requires the import of 2FA accounts from either an Android or an iPhone device before it can be used.

The app is a TOTP client that generates 2FA tokens for hundreds of websites, including Google and Twitter. To use the app, users need to scan a QR bar code or an alphanumeric code from their 2FA provider. Once the accounts are imported to the watch, connection to a phone is not required to generate 2FA tokens. The app allows importing 2FA accounts from 2FA Auth Client companion and displaying auth tokens on a watch.