Amazon Kindle book purchases are the next Google Play billing casualty

Enlarge / Amazon's new purchase explainer and the "learn more" link.

Following up on its earlier move to pull Audible audiobook purchases from its Play Store app, Amazon is also turning off Kindle digital book purchases on Android. The Google Play purchasing crackdown is to blame, of course. Starting on June 1, Google will require all Play Store apps to use Google Play billing for digital purchases or face removal from the marketplace. Google Play billing technically has been in the rules for a while, but Google is ending a hands-off enforcement policy that effectively allowed companies to run their own billing systems.

When you visit the Amazon app, you can still buy physical books, but digital purchases now show a "Why can't I buy on the app?" link instead of a purchase button. Amazon's link shows a popup that says, "To remain in compliance with the Google Play Store policies, you will no longer be able to buy new content from the app. You can build a reading list on the app and buy on [the] Amazon website from your browser."

Amazon Music purchases have also been shut down on the Google Play app. The move brings Amazon's Google Play app in line with the iOS app, which also doesn't allow digital purchases. On Android, Amazon is pushing users to the website, where they can still buy digital content or sign up for an unlimited subscription, which avoids the Play Store purchase lockdown.