Juli Clover, writing for MacRumors:

Apple today informed developers of “reader” apps that they are able to sign up for access to an “External Link Account Entitlement” that will allow the app to offer a link to a website so users can create or manage an account outside of the App Store.

Chris Hannah, with the only question anyone should be asking in response to this news:

Why is this just not for all apps?

Apple’s silly restrictions on the App Store are holding the platform back. They should give this option to all app developers and let them distribute apps outside of the App Store, too.

➝ Source: macrumors.com