IPod game steps towards entering the video game handheld console market. Even video game magazines like GamePro and EGM have reviewed and rated most of their games. The games are in the form of .ipg files (iPod game), which are actually .zip archives in disguise. When unzipped, they reveal executable files along with common audio and image files, leading to the possibility of third-party games. Currently, Apple has no publicly available software development kit (SDK) for iPod-specific development. The iOS SDK covers only iOS on the iPhone and iPod Touch, not traditional iPods. As of October 2011, Apple has removed all the
IPhone be accessed by a hardware button below the screen on all models expect for the iPhone X where the user must swipe up. The original iPhone contained the following apps: Messages (SMS and MMS messaging), Calendar, Photos, Camera, YouTube, Stocks, Maps (Google Maps), Weather, Voice Memos, Notes, Clock, Calculator, Settings and iTunes (store). The App Store was introduced for the iPhone 3GS and iPhone 4. Compass, FaceTime and GameCenter were added in iOS 4 and 4.1 respectively. In iOS 5, Reminders and Newsstand were added, and the iPod application was split into separate Music and Videos applications. iOS 6 added