IOS and Android are the two dominant mobile operating systems. IOS was developed by Apple and is used exclusively on Apple devices like iPhone, iPad and iPod Touch. It provides a intuitive touch interface. Android was originally developed by Android Inc. and is now owned by Google. It is an open source, Linux-based OS used by many manufacturers on smartphones and tablets. While IOS prioritizes simplicity and integration with other Apple services, Android is open source and customizable, making it the global market leader in terms of devices activated. Both operating systems have grown dramatically in recent years.