Super Grate is described as 'A free & open source Windows Profile Migration & Backup Utility. Super Grate is a GUI (Graphical User Interface) that assists Microsoft's USMT (User State Migration Utility) in performing remote migrations over a network connection' and is an app in the Backup & Sync category. There are three alternatives to Super Grate for Windows. The best alternative is USMTGUI. It's not free, so if you're looking for a free alternative, you could try User State Migration Tool.
In many ways USMTGUI is a replacement for the deprecated Microsoft tool Windows Easy Transfer. USMTGUI utilizes the same underlying "User State Migration Tool engine", that Microsoft has developed, to transfer User profiles from one Pc to another.
Microsoft User State Migration Tool is a scriptable command-line tool for IT professionals that assists in migrating user files and settings from one Windows PC to another, or to the same PC during in-place upgrades of the OS.