What you need to know SceneFlow is a new iPhone app that gives you personization options that the Home app simply doesn't. Users can change the layout of the app to make it just so. Apple's HomeKit is pretty swell and the Home app does its job. But it doesn't do it with any kind of real customization in mind. SceneFlow is a new app for iPhone that very much does because you can make the app look exactly how you'd like it to look. SceneFlow lets you take your HomeKit accessories, whether they're lights, security cameras, or anything else, and put them wherever you like on the app's home screen. You can change how each device appears as well, so lights could be a simple on-screen button while cameras display a preview of what they're seeing.