Most Android devices default to the Google Play Store for downloading and installing apps, but it's far from the only place ...

In general, you should install apps outside of your phone's app store only if you have a very good reason to.

To install your app or game, remove a device from your account Ten of your devices have apps & games from Store already installed on them That’s the limit.

Apple How to add device to HomeKit To add every device besides Apple TV to your Home app, you’ll need to use your iPhone or iPad. After loading up the app, follow these simple steps.