Planet Fitness is offering two-months of Audible membership that includes two audiobook credits for FREE for a limited time. Upon signing up, you will receive a code for a FREE $15 Amazon.com credit via email. This offer is limited to one per person and is only valid for new Audible customers. Offer valid while supplies last. If you do not wish to continue subscribing to Audible after the trial, be sure you cancel your membership before the end of the second month to avoid being charged.