Once you have created your Carbon account and logged in with MetaMask, you can go into the Account section and scroll down to “Device Login Code”. Click “Generate code” to get your code.
Now go to the Carbon app or website on any other device, go to Sign in and enter that code. Codes are valid for 60 seconds only, so be ready! You can generate a new code if the code has expired.
This code login method makes it very simple to use Carbon on multiple devices without the need for any email address or password.
You can also easily logout of all devices.
If you need to interact with the blockchain (such as depositing Carbon) then you will need to use your MetaMask device.