The Apple Store, buy and download iOS applications. The App store is only available through iTunes, or through the App Store application on your iOS phone. You will need an Apple account.
Download Android apps and digital content to your device using the Google Play Store app or through play.Google.com. on your computer. using your Google account.
You''ll need a Microsoft account to download Windows 8 applications. Download apps from the Windows Phone store mobile application or from their website.