Jon, Good thoughts on younger students with high disposal income. I guess I passed those young and fun years. I got those numbers from Google Analytics. It detects (not 100%) per devices and browsers. I didn't even bother look at browsers this time. As you mentioned those numbers are not concrete, but it gives me some idea to reflect on our mobile users and plan for the future. We have developed iOS app two years ago, but I am tinkering an idea of developing Android App. I might be biased because I have an Android device and very very small disposable income. :) Sarah -----Original Message----- From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of Jon Gorman Sent: Tuesday, October 30, 2012 3:39 PM To: [log in to unmask] Subject: Re: [CODE4LIB] Mobile device usage (iOS vs. Android) > Any thought? I guess I'd be somewhat wary of comparing general trends to a more defined population. I'm guessing your campus population is not typical of the national population, instead probably skewed towards a younger population with higher disposable income (and also perhaps more sensitive to peer pressure) and hence might not follow general trends ;). Also, how is your 70% traffic figured? Do you have any way to determine if perhaps a few outliers are creating a significant amount of traffic. (In other words, do you know if the mobile traffic actually represents ownership, or might there be a smaller group of i-phone users who happen to use the library services more? I'd guess the smaller the population accessing via mobile, the more likely a small population could skew the results) Also, how are you measuring the Android users? Is it possible you're missing some who would be using non-default browsers or browsers modified by a carrier? I don't unfortunately have any stats, but I do seem to remember seeing some numbers locally that would indicate iOS count of web usage is still pretty high. Android phones are becoming very, very cheap but data plans aren't. Also, the form factor and the processing power of some of the cheaper androids make web searching less than thrilling. I could see someone using an Android that they get for free, but not accessing the library for a variety of reasons. It would be interesting if one could compare the usage of different Android devices but the difficulty of data collection here might be enormous. (I'm not sure off hand if there's an easy way to distinguish, say, a Samsung Galaxy 2 from a Optimus) Jon Gorman