Beware! I used this app for about 6 different third party accounts, I didn't know the issue around getting a new device and so I sold my phone, went to install the app & it said scan the QR code from your old device. 4 hours of my life I will never get back, talking to google support, emailing them, still locked out of al my accounts 😫 If you use this app then make sure you download the backup codes (it doesn't tell you too and I didn't know what I didn't know). Use Authy instead!