Fragmentation is the flaming torch we have to face each time a discussion about Android updates or development is started. Google releases monthly distribution numbers of its operating system, which detail the percentages of devices running a certain version of the OS that have visited the Play Store in the past 7 days. They're usually met with collective groans as Froyo and Gingerbread cling on to dear life month after month.

But as Apteligent's monthly data report points out, Google doesn't take into consideration two important factors: devices that don't have the Play Store installed (ie Chinese handsets mostly) and device usage. A phone may access the Play Store, but it may not be actively used.

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