Apple biggest addition will include taking on Google Now with a new iOS initiative internally called Proactive. According to 9To5Mac, Proactive will leverage existing features such as Siri, Contacts, Calendar, Passbook, and third-party apps ‘to create a viable competitor to Google Now’. The company also has plans to introduce a new smart home app for iOS 9 called 'Home'. The new app will allow a user to set up new smart home products such as Wi-Fi garage door openers, smart thermostats akin to Nest’s Learning Thermostat, and wireless door locks with iPhones and iPads.
For Apple, iOS 9 is all about change. The company has penned down a new strategy as well, as it expects to widen the time/life span of support for its older devices including the iPhone 4S. Needless to say, this will help the company maintain a foothold in emerging markets where people don't replace a high-end device every time its new variant arrives. Apple will focus heavily on improving stability and optimization for their yet to release iOS 9.