Next time you open the app drawer, you'll see two icons for the apps you selected. (digitaltrends.com)
Maybe it isn't obvious, but I am quite certain that the screen shown is what you will see the first time you open the app. (safaribooksonline.com)
The next time you open the app for your HomeKit - enabled accessory, you'll be prompted to give your connected home a new name and re-link your HomeKit bridge or other connected accessories. (imore.com)