from iOS (DIRECT)
You can back up your notes from Android DIRECTLY:
Open "Files" app from your iOS device.
Select "On My iPhone / iPad"
3. Open "Unique Bible App Plus". You should see a file, named "Notes.sqlite", which contains your notes.
4. Select "Notes.sqlite".
5. With "Notes.sqlite" selected, touch the share button. This enables you to send out the file to somewhere else for backup purpose.