But a year on, a total of 35m iPhone owners in the US used Apple’s
maps during September 2013, according to ComScore, compared
to a total of 58.7m Google Maps across the iPhone and Android.
Of those, about 6m used Google Maps on the iPhone, according to
calculations by the Guardian based on figures from ComScore. That
includes 2m iPhone users who have not or cannot upgrade to iOS 6,
according to data from MixPanel.