Apple makes it very difficult to use a browser other than the default Safari on iOS devices. They don't outright prevent other developers from creating browsers, but they do prevent users from selecting a different default browser. Back in June, Google finally released Chrome for iOS and it has since been gaining market share.
In July, Google's browser had reached a massive 1.5 percent, which, despite the small number, is quite impressive. Here we are just three months after the initial release and Google's Chrome has reached an even more impressive 2.7 percent. Of course, these market share numbers are a bunch of estimates and vary with the time of day and between days.
Chitika, the advertising company behind these numbers, stated that depending on the hour of the day, the number can be in excess of 5 percent, and peaked at 6.83 percent on September 7. Chitika's analysts state, "considering the fact that Chrome for iOS spent nearly a month as the top free app for iOS devices, the Chitika Insights team expected it would make more of an impact on the market than it has thus far."