<i>&gt; So that&#x27;s how it is nowadays, pay the Apple extortion fee it&#x27;s good for you .</i><p>That&#x27;s not what OP is saying, though. The f.lux folks were leveraging private APIs, that are unpublished and not part of the set of tools you&#x27;re authorized to build commercial apps on for iOS. Apple doesn&#x27;t want to support those APIs for whatever reason, so they&#x27;re not included in the toolset. Just because you can find a way to do something (like distributing binaries to have users compile into their own version of an app, trusting that the distributor is trustworthy, that the distribution hasn&#x27;t been corrupted somehow, that...) doesn&#x27;t mean it should be allowed willy nilly.<p>Strong requirements like this at some level have kept quality in the average iOS app high.<p>I recently dumped Android for iOS again because I got sick after 4 years of my devices never quite working right. If I don&#x27;t have to spend so much time on my iPhone policing apps from randomly deciding to go off the reserve (like happened even with quite popular apps on Android), I&#x27;ll take that over complete unfettered license to muck about in the operating system.<p>Cause that as a practice just doesn&#x27;t turn out well. For every f.lux there&#x27;s 100 development operations who are gonna screw something up.