Most current iOS version distribution percentage?
I started working on a new app and I wanted to use all of the new iOS5 features (including storyboard) but I'm afraid to limit my app to iOS5 users only.
I couldn't find any information about iOS5 usage VS iOS<5 usage.
If you could point me to some research data or give me an advice about going for iOS5 only development, I would be forever grateful :)
Thanks
Answer
http://david-smith.org/iosversionstats/ has some data that is (as of Apr 2013) are bang up to date.
That data showed that 1.5 weeks after formal release, iOS 6 had already reached 38%. Currently (Apr 2013) it shows that iOS 6 has reached 89.1%.
UPDATE - June 2013
Apple have now also added some stats to their developer portal, these show the devices accessing the appstore and for a 14 day period ending June 3, 2013 iOS 6 was 93%, iOS5 6% and earlier iOS versions 1%. (Nov 2013: this link doesn't seem to work anymore - I can't find a current link.)
UPDATE - November 2013
Mixpanel trends have a graph showing iOS 7 adoption rate
UPDATE - Deccember 2013
Apple's stats are back (at a new URL).
They're currently show iOS 7 74%, iOS 6 22%, and 'earlier' 4% - as measured by the App Store in 7 days ending 1st December. (ie. approx 2 months after the public release of iOS 7.)