DON'T BUY: Abandoned and broken. – KyBook 3 Ebook Reader Review

Does not work with Google Drive as advertised. It probably did at some point, but the developer gave up. No updates in a year. The github page is littered with support requests that have gone unanswered. Hundreds. This DOES NOT function with cloud services anymore.
Review by Barrowlands on KyBook 3 Ebook Reader.