Amazon has the world's largest catalog of digital books, but buying them on an iPad requires a specific workaround due to Apple's in-app purchase fees.
Excellent rewards program and great support for independent authors. 💡 Pro-Tips for iPad Readers buy books to read on ipad
Apple Books, Kindle (via Audible), and Kobo all allow you to buy and listen to audiobooks directly on your tablet. Amazon has the world's largest catalog of digital