Google Chrome browser for Android
Google currently splits ad revenue share with Apple for Google searches performed through Safari, a deal that currently sees Google paying Apple roughly $1 billion per year. With a potential Chrome browser for iOS leading to Google keeping all revenue for searches through the browser for itself, Google could see a significant financial benefit if it can achieve a substantial user base on iOS.
The problem for Google is that Apple does not make it convenient for users to take advantage of third-party browsers, with Safari alternatives like Opera and Dolphin representing only tiny fractions of iOS browser share. Systemwide calls for browser actions throughout iOS apps are linked to Safari, meaning that users have to take extra steps to use a different browser, with the inconvenience leading the vast majority of users to simply use Safari for their iOS browsing needs.