Android may be the more popular platform in general, but there sure are an awful lot of iPhones being used to take pictures for Flickr, and apparently not a whole lot of Android phones.
The most popular camera on Flickr: the iPhone 4S. Not just the most popular cameraphone—the most popular camera. The second most popular at the moment? The iPhone 4.
Cameras brands, in order of popularity on Flickr: Canon, Nikon, Apple, …, Samsung, HTC, …, Nokia, Kodak, Motorola …
Cameraphone popularity, in order: iPhone 4S, iPhone 4, iPhone 5, iPhone 3GS, Samsung Galaxy S II.
Perhaps they're causing some bias in these numbers today by not pushing the Android app, and some more bias by not reporting Android phones as a group, but given the data they have, I'm not surprised they push the iOS app over the Android version. It looks like their user base is very heavily biased towards the iPhone.
The most popular camera on Flickr: the iPhone 4S. Not just the most popular cameraphone—the most popular camera. The second most popular at the moment? The iPhone 4.
Cameras brands, in order of popularity on Flickr: Canon, Nikon, Apple, …, Samsung, HTC, …, Nokia, Kodak, Motorola …
Cameraphone popularity, in order: iPhone 4S, iPhone 4, iPhone 5, iPhone 3GS, Samsung Galaxy S II.
Source: http://www.flickr.com/cameras/
Perhaps they're causing some bias in these numbers today by not pushing the Android app, and some more bias by not reporting Android phones as a group, but given the data they have, I'm not surprised they push the iOS app over the Android version. It looks like their user base is very heavily biased towards the iPhone.