According to the official developer documentation, several factors prevent a native iOS release:
Since the official CloudStream 3 app is not on iOS, users often turn to these alternatives found on the App Store : cloudstream 3 ios
Because of the high demand, scammers have noticed the keyword. If you search for "CloudStream 3 iOS" on Google, you might see third-party websites offering a .ipa file or an app that claims to be "CloudStream for iPhone." The entire core of the application has to be rewritten
iOS apps, conversely, are built using or Objective-C. You cannot simply "copy-paste" an Android app onto an iPhone. The entire core of the application has to be rewritten. While developers are working on cross-platform solutions (like Flutter or React Native), or porting the logic to Swift, it is a massive undertaking for a team that is largely working for free in their spare time. or porting the logic to Swift