Search giant Google (NASDAQ:GOOGL) has updated its flagship Google Search app on Apple's (NASDAQ:AAPL) iOS platform to version 3.0.0, bringing its Now virtual assistant to the rival operating system for the first time. Now offers functionalities that will rival Apple's own Siri virtual assistant.

Google Now launched on Android last summer alongside 4.1 Jelly Bean, while Siri was released in 2011 with the iPhone 4S. Many consider Google Now to be superior to Siri, since Google has a larger collection of user data that it can use to proactively suggest things, such as when someone should leave earlier for their commute due to congested traffic.

Now and Siri will compete much like Google Maps and Apple Maps do, offering rival services for iOS users.