The developer preview of Apple's upcoming OS X 10.10 Yosemite was almost four times more popular with developers than the developer preview OS X 10.9 Mavericks was at the same point in its lifecycle, but following the release of the public beta usage of the operating system has more than doubled.
Following the start of the OS X Yosemite public beta on July 24, 2014, North American web traffic data collected by web ads and analytics firm Chitika found usage rates rising significantly.
Following the release of the developer preview, usage figures hovered between 0.2 percent and 0.3 percent, but this very rapidly leapt to more than 0.6 percent on July 25.
Chitika Insights sampled hundreds of millions of US and Canadian Mac OS X-based online ad impressions running through the Chitika Ad Network.
Measuring OS X ad impressions from users between June 2 and July 2, Chitika found that the developer preview of OS X Yosemite was being used on 0.15 percent of Macs in the United States and Canada. By comparison, the developer preview of OS X Mavericks that was released last year took around 30 days to reach 0.05 percent of measured web traffic.
Assuming that most of the one million redemption codes that Apple made available have now been claimed, it is unlikely that Yosemite's share of total Mac OS X web traffic will grow much further beyond current usage rates until the operating system is released in the fall.