Can I use the audiobook in iTunes or another app? I don’t want to listen to all the chapters over cellular data.

Definitely! The file you want for the audiobook in iTunes or other audio book apps is the M4B file. That will give you all the chapters in one file, and iTunes will keep your place rather than trying to listen to each chapter individually.

If you download the M4B files, it should automatically open in iTunes when you click on the download. However, some device setups are different, and if it doesn’t open you may have to sideload it into the device. Drop us a note at contact@otpbooks.com if you need help with that.