Spotify announced on Monday that Apple has approved a new app update, allowing iPhone users in the U.S. to purchase individual audiobooks directly within the app. Users can also view audiobook prices and easily buy additional listening hours beyond the initial 15 hours.“This change lowers the barriers for more users to embrace their first — or tenth — audiobook, while allowing publishers and authors to reach fans and access new audiences seamlessly,” the company wrote in the announcement.  This long-awaite ...