In the United States, launch cities will include Baltimore, Chicago, New York, Philadelphia, San Francisco, and Washington DC. Transit directions will also be available internationally in London, Toronto, and Berlin.

iOS 9 will give Apple Maps users the ability to receive public transit directions, restoring core functionality that Apple's mobile operating system lost when the company replaced Google Maps with its own software in 2012.

Apple's iOS 9 scheduled to be released later this year and will be available for update on all iPhones, iPads and iPods. iOS 9 is full of enhancements and adds new multitasking features to devices.

Siri can do more than ever, and new proactive suggestions help users get things done before they ask. The operating system enhances performance, battery life, and security.