If you use roaming data in your app, your users can easily keep your app's application data in sync across multiple devices. If a user installs your app on multiple devices, Windows keeps the application data in sync, reducing the amount of setup work that the user needs to do for your app on their second device.
Roaming also enables your users to continue a task, such as composing a list, right where they left off even on a different device. Windows replicates roaming data to the cloud when it is updated, and synchronizes the data to the other devices on which the app is installed. Learn more about Application Roaming Settings on