Apple’s iOS mobile operating system has recently surpassed Mac OS in terms of Web market share, notes analytics firm Chitika in a recent report.

Since September, Apple’s desktop operating system – collectively referred to as Mac OS in the report – has been steadily losing Web market share while the iOS, which powers Apple’s line of mobile devices, has been gaining. As you can see in the above graph, the iOS recently surpassed Mac OS in terms of Web market share in the United States, evidencing the popularity of Apple’s iOS devices when it comes to Web browsing. The report notes that:

The data shows that the web market shares of iOS and OS X have been converging steadily since August. iOS has been posting regular gains, and has experienced an overall growth of nearly 50%, whereas OS X has seen its market share decline by 25% since a high point in September. February marks the first point where a reversal in position can be seen in the respective operating systems. iOS passes Mac OS with 8.15% of all web traffic, whereas Mac OS only sees 7.96%.

Back in June, we told you that the iPad itself accounted for one percent of all Web browsing. At the time, the Web market share of Apple’s iOS was around half of the share of Mac OS; the launch of Apple’s iPhone 4S, along with other factors, have resulted in the iOS gaining a Web market share of 8.15 percent and surpassing that of the desktop operating system.

For more information, take a look at the original report.