[Zubersoft]

If you purchased MobileSheets through the Microsoft Store, then your purchase is tied to the email address you used on the store. Just log in with that same email address, and you will be able to install MobileSheets on the other devices you own. It is also recommended to be logged in to Windows 10 itself with that email address to avoid problems. If you purchased through FastSpring (https://zubersoft.onfastspring.com/), then a separate purchase is required for each device. You will get one license key per purchase, and you can enter those when starting the application for the first time.

Mike