Yes, Qubii can be used with multiple devices. During the initial backup process, you'll have the option to either back up all devices into a single folder or create separate folders for each device. If you choose to create separate folders, you'll be prompted to name each folder. Please note that the folder name cannot be changed later on, and all backups from that device will be stored in that specific folder.
Support
If you are still having trouble, please contact the Maktar Customer Support Center for further assistance.
Customer Support Contact Information:
Qubii/ Qubii Pro App: App -> Select upper-left chat icon -> Contact US
Facebook Messenger: m.me/maktar.inc
Email: support@maktar.com