The short answer: Findaway Voices for most authors, ACX only if you have a very specific reason to stay Amazon-exclusive.
ACX is Amazon's audiobook creation and distribution platform. It gets your audiobook onto Audible, Amazon, and iTunes. The royalty rate is either 40% (exclusive to Audible) or 25% (non-exclusive). Exclusive means your audiobook is only available through Amazon's ecosystem for seven years. Yes, seven years. That is a long time to be locked into one platform.
Findaway Voices (now part of Spotify's audiobook infrastructure) distributes to Audible, Apple Books, Spotify, Google Play, Kobo, OverDrive (libraries), Hoopla, and dozens of other platforms. You keep 80% of the net revenue from most channels. The reach is dramatically wider than ACX, and you maintain full control of your distribution rights.
The math favors Findaway now. Spotify has become a major audiobook platform. Millions of listeners who already pay for Spotify Premium now have access to audiobook hours as part of their subscription, and Spotify's recommendation algorithm is introducing listeners to new audiobooks they would never have found on Audible. If your audiobook is not on Spotify, you are missing a growing audience that skews younger and more diverse than the traditional Audible listener.
Apple Books' audiobook section is also growing. Kobo's audiobook integration is expanding. Libraries are buying more audio titles every year. All of these channels are accessible through Findaway but not through ACX exclusive.
The one scenario where ACX still makes sense: you are producing a high-budget fiction audiobook with a star narrator and you are confident that the Audible audience alone will generate enough revenue to justify the exclusivity. Some romance and thriller authors in Kindle Unlimited do well with an all-Amazon strategy across ebook, print, and audio. But even for them, the seven-year lock-in is increasingly hard to justify as other platforms grow.
For most authors, especially non-fiction authors, go with Findaway. The wider reach, higher royalty percentages, and access to Spotify make it the clear winner.
A note on audiobook production costs. If you are using a human narrator through ACX, you can choose a royalty-share model (no upfront cost, but you split royalties 50/50 for seven years) or pay per finished hour (typically $200 to $500 per hour for a professional narrator, so a 10-hour book costs $2,000 to $5,000). Through Findaway, you pay per finished hour upfront but keep all your royalties. For non-fiction, AI narration through services like ElevenLabs or KDP Virtual Voice can produce a serviceable audiobook at near-zero cost. The quality has improved enormously, and for straightforward non-fiction where performance is less critical, it is a viable option.
The audiobook market is growing faster than any other book format. Ignoring it means leaving money on the table. But the platform you choose for distribution matters as much as the production quality. Choose the one that puts your audiobook in front of the most ears.
For most authors, especially non-fiction authors, go with Findaway. The wider reach, higher royalty percentages, and access to Spotify make it the clear winner.
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