So, generally speaking, all you need to do is install the companion apps for all your smart home devices and then keep them up to date. We recommend that you set your smart-home apps to update automatically. On an Android device, open the Google Play Store app, tap the menu button (three lines) on the top left, and then select Settings > Auto-update apps. On iOS, go to Settings > iTunes & App Store and set Apps to automatically download. Here's what you need to know.