> App stores changed none of that in terms of fundamental activity one needs to do.
This just isn’t true: app stores vary but they added some key changes — developers have a reputation to worry about, stores restrict what APIs you can call, and it provides a single place to force updates or pull malware. That’s not perfect, of course, but it’s better than just installing whatever you find online — Facebook et al. wouldn’t be upset with Apple if it wasn’t working.
This just isn’t true: app stores vary but they added some key changes — developers have a reputation to worry about, stores restrict what APIs you can call, and it provides a single place to force updates or pull malware. That’s not perfect, of course, but it’s better than just installing whatever you find online — Facebook et al. wouldn’t be upset with Apple if it wasn’t working.