According to him, over 20 million devices, 22,780,029 to be precise, were seen running Cydia (which implies they are jailbroken) in the past two months. These devices include not just the iPhone but the iPod touch and the iPad as well.
Over a third of these jailbroken devices are iPhone 4 units, which can be jailbroken even on iOS 6, and the second most abundant model, at 20.4 percent, is the iPhone 4S for which an iOS 6 jailbreak is still not available. Amazingly, there are still some iPhone 2G and iPod touch 1st gen units in the stats, although both contribute less than a percent.
Here’s the chart:
Jay Freeman adds that during the lack of a public jailbreak for new versions of iOS, numbers typically go down, but the decline is offset by the huge surge in jailbreaks once a new one is released, and the net usage of Cydia is always going up.
Any guesses on how large this figure would become once the iPhone 5 jailbreak is released to the public?
Related: Keep checking our jailbreaking page to keep a tab on which devices and iOS versions can be currently jailbroken.