Things are a little less straightforward for those with an Amazon Music Unlimited family plan. Only the primary account holders of family plans can listen to the included one audiobook per month. If any other family members want access to Audible titles ...

Beginning Tuesday, music streaming service customers in the US, UK and Canada have a new perk: Audible's catalog of more than 1 million audio titles, Amazon said in a press release. One audiobook per month is up for grabs for individual plan subscribers and family plan primary account holders.

Amazon Music Unlimited subscribers can now get one free audiobook per month — similar to the freebie Spotify started tossing Premium listeners last year. The perk is available to Music Unlimited subscribers in the US,