AOMEI Backupper is backup, restore, clone and synchronisation software for Windows. It is used to back up and restore systems, disks and files, keep files in sync and clone or migrate disks. The vendor also offers a macOS edition and a Server edition. It is desktop software installed on the user's own computer or server, not a hosted service.
AOMEI publishes its privacy policy under the name AOMEI International Network Limited. AOMEI Technology is based in Chengdu, China, so the vendor is a non-EU company. The privacy policy says third-party vendors and hosting partners are used for networking and storage, without naming locations, and it does not mention the GDPR by name. Because the software runs locally, backups stay on the storage you choose. A European organisation should still check what the application sends to the vendor. The software is proprietary.