You can install OneAuth on multiple devices and designate one of them as your primary device and the others as secondary devices. This is useful when you don't have the primary device with you, but need to sign in to your Zoho account. If you only have one device set up, then that device becomes your primary device by default.
If you'd like a personalized walk-through of our data preparation tool, please request a demo and we'll be happy to show you how to get the best out of Zoho DataPrep.