I am a Technology Integrator in a school PreK-12. Middle School is who uses Notability the most, some on iPad and some on MacBooks. The biggest complaint I get is the option of using a different iCloud account as a backup other than the iCloud account associated with the device. I myself installed Notability on my home iMac so I could work on projects without having to bring my work Computer and iPad home. My Computer is setup with a personal icloud account. So, my attempt to do that was fruitless. You can choose ANY Google Drive account to back up to, WHY can’t you have a choice of iCloud? Work on it boys and girls. Make it happen.
chad smith in NYC about Notability, v2.2.0