Originally the carriers were terrified of app stores because there would be cell network hacking tools and service disrupting network traffic. A vast majority o

Originally the carriers were terrified of app stores because there would be cell network hacking tools and service disrupting network traffic. A vast majority of malware on macOS now comes from pirate apps stores via torrents. Much of the current App Store design is based on those concerns and the current iOS sandbox is still a long way from preventing those abuses.