Confusing, and now it doesnt work

The app doesnt make it clear how to purchase books on Apple devices. You have to buy the books on the website, then read the books in the app. I like the night reading function.

Edit: I cant view any of my purchased books in the app. It freezes whenever I attempt to open them. I have an iPhone 6. Ripoff.

jchillz420 about Google Play Books - Books & Comics, v3.1.1