Several ebook reader apps, including those of Amazon (Kindle), Barnes and Noble (Nook), and Kobo, have removed in-app links to their online ebook stores in order to comply with App Store guidelines. Updates for the Kindle, Nook, Kobo and Google Books app hit the App Store in the past few days, the timing of which suggests a deadline not announced to the public.
Kobo sent out an email to customers noting this change yesterday:
Last month Apple revised its App Store Review Guidelines, removing a requirement that all apps that accessed content purchased elsewhere also offer the ability to purchase that content within the app at the same or a lower price. In conjunction with this removal, Apple clarified that apps that include a link to purchase content outside of an app that is not also available for purchase within an app — and therefore subject to Apple’s 30% cut — would be rejected.
The enforcement of these guidelines leave Apple with the only ebook store easily accessible from its iOS devices through its own iBooks app.
I purchase ebooks from Amazon and Barnes and Noble and I am disappointed to see these handy in-app links to their respective ebook stores go away, though it’s an inconvenience easily remedied by simply bookmarking them in Safari.