August has been a pretty slow month for mobile app marketing in recent years, but this year went a different direction. Not only did our July indexes reach impressive heights, but Apple also introduced a new wrinkle to its ranking algorithm all while gearing up for its annual launch of new eye-catching gadgets. So much excitement, that we almost missed the coveted Index post!

History has shown us the arrival of a new mobile device generates remarkable opportunities for app marketers to cost-effectively acquire and engage new users, as download volumes surge, costs to acquire loyal users plummet, and user-interest levels peak. So it was no surprise the much-anticipated arrival of the iPhone 5 in September prompted some interesting dynamics in the Fiksu Indexes.