We were very curious to see whether or not this would happen, and it turns out we were right to wonder. When we first heard Apple announce the iOS 6
update, we made sure to warn users that if they didn't want to lose Google Maps, they should wait on updating (this was even before Apple Maps was found to have so many problems.) It turns out that a lot of people had the same concerns, and delayed updating their iOS devices until Google Maps was released, and that has caused a spike in the iOS 6 adoption.
Ad network MoPub checked data from the 12,000 iOS applications in a recent study that found iOS 6 adoption jumped 29% in the five days after Google Maps was released into the App Store. MoPub CEO Jim Payne said:
We observed since the launch of Google Maps for iOS 6 a 30 percent increase in unique iOS 6 users, and we think it’s related to Google Maps. It verifies the hypothesis that people were actually holding back to upgrade until Google Maps was available.
It definitely verifies our hypothesis too. Of course, Google Maps for iOS has been an all-around success since launch, taking just 7 hours
to reach the top of the iTunes charts, and 48 hours to gather 10 million downloads