Following the launch of iPhone 5 in Sept. 21, app downloads dramatically increased by 33 percent in October, finds Fiksu, a developer of Fiksu for Mobile Apps Marketing Platform.

Fiksu also said that the cost to acquire a loyal app user continued its downward trajectory, decreasing by 6 percent in October.

Fiksu mobile app combines advanced media optimization technology with the world’s largest app media inventory. For October, the Fiksu Cost per Loyal User Index was $1.06, down seven cents or 6 percent, from September’s $1.13.

Significant increases in organic searches and app discovery – driven by the arrival of the iPhone 5 and users’ natural enthusiasm for downloading apps on to new devices – pushed costs down and created a huge opportunity for mobile app marketers to very cost-efficiently acquire loyal users in October, the company said.

The Fiksu App Store Competitive Index (measures the average aggregate daily download volume of the top 200 free U.S. iPhone apps) soared to 5.4 million daily downloads in October, a 33 percent increase from September.

The Index painted a similar picture following the availability of the iPhone 4S in October 2011, when traffic also surged by a proportional 29 percent, and continues the surge Fiksu saw developing at the end of September, according to the company.

“October was a month of opportunity for mobile app marketers,” said Micah Adler, CEO, Fiksu. “Organic searches soared as users around the world actively explored the App Store searching out new apps for their new iPhones. This heightened period of organic discovery – coupled with peak download volumes – drove down the cost of loyal user acquisition. Some savvy marketers chose to ride this wave without substantially increasing their advertising spending.”

The Fiksu Indexes measure monthly fluctuations in competition for rank in the Apple App Store and the cost to acquire loyal users1, helping mobile app marketers benchmark their performance against industry trends.

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