SAN FRANCISCO, June 9 morning news, 2015 Apple Worldwide Developers Conference (WWDC 2015) in San Francisco officially opened this year on the theme "the epicenter of change. (Center of change)." After OS X is redesigned iOS 9, the entire system will be more intelligent.（Recover/Retrieve Lost iPhone Contacts After Upgrading to iOS 9）
First introduced the redesigned interface is very nice Siri, the new voice assistant will help you find more. Improved features make these portable assistant Siri becomes better, it would be recommended that the activities carried out by the device according to your usage scenario changes. For example: If you add an address in an event in the calendar application in, Siri will remind you ought to departure time. iOS 9 will provide a deeper level of information search, Apple even provides a search API interface, so that users can search more APP inside information.（Transfer Contacts from iPhone to iPhone 6S/7）
In everyday use of iOS 9 will provide more intelligence experience, when you pick up the iPhone the first time in the morning, it will automatically suggest the need to open the APP according to your daily habits. Browser search, mail and other historical usage records, will be recorded phone down and generate reminders. But you have nothing to worry about data leakage, all records will only be stored in the device. Apple ID is not associated with, nor shared with third parties.（How to Restore Disappeared Data from iPhone iPad iPod after iOS 9 Upgrade）
In addition, Apple said iOS 9 more power, compared to iOS 8 that allows mobile phones to use more three hours.