The charts below shows the different OS versions of both Android and iOS. Android's chart covers the distribution up until November (does not include KitKat -- which is only found on 1.1% of devices). The iOS chart shows 96% of users running either iOS 6 (22%) or iOS 7 (74%).
Apple offers just three phones and four tablets on the market today while there are currently hundreds of other Android phones and tablets -- making it much easier for developers to push out Applications and updates on iOS devices.
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