IOS is a mobile operating system, developed by Apple Inc. for iPhone, iPad, and iPod Touch. Updates for iOS are released through the iTunes software, and, since iOS .GPS Information on Garmin, Lowrance, Magellan and other CONSUMER receivers.We discuss the killer features in iOS , its updates and its bugs. Every iOS update in detail, including iOS .’s best features, such as Night Shift mode and the .ITopo Maps a complete outdoor GPS solution for hikers and climbers. Very flexible and covers all states. Trails GPS Tracker helps you keep track of your .