I am a long-time avid audiobook listener and have always use the Audible app. Recently a book I wanted was not available on Audible but it was on Audiobooks.
I took advantage of the free first time user Credit. I found the app a little bit different from Audible but after using it for a few minutes found that it provided more options than the Audible app. Overall I am very pleased with Audiobooks. I am not certain if they provide discounts for bulk purchases of credits like Audible does- this would be my only complaint.
John Sherman art about Audiobooks.com: Get audiobooks, v5.10