Apple (News - Alert) always causes a stir in the market and the release of iPhone 4S was no exception. App download volumes increased by 83 percent in comparison to November 2010. This was reported by Fiksu Inc.

According to Fiksu Inc., the swell of new iPhone (News - Alert) 4S users combined with iOS 5 app updates was responsible for this activity and peak download volumes for the top 200 apps.

The Fiksu App Store Competitive Index, which measures the average aggregate daily download volume of the top 200 free U.S. iPhone apps, indicated that the index peaked at 5.65 million downloads in November 2011.

This clearly demonstrated that in the span of just one year, there has been an enormous demand for and consequential growth of mobile apps.

Fiksu Indices thus help to simplify the process of benchmarking for marketers against industry averages as these indexes help to identify to what extent apps have fluctuated with reference to the previous month. In addition it also helps establish the cost to acquire loyal users. This cost remained relatively steady in November.

Data for the Fiksu Indexes was obtained from app launches, app purchases, downloads, registrations, marketed apps via Fiksu and more.

"Unlike October's intermittent spikes in downloads and costs, November saw a steady increase in demand for app downloads without any notable fluctuations in mobile app marketing costs - even over Thanksgiving weekend," said Micah Adler, Fiksu's CEO, in a press release.

Adler noted that all these signs indicated that app marketers had become savvier about planning and executing their ad spends during seasonal periods to avoid paying premium prices for acquiring users.

In another study, Fiksu indicated that its creation, FreeMyApps provided U.S. developers and marketers of paid iOS appa a new, scalable solution to cost-effectively market and grow their business. helps leading brands boost iOS and Android (News - Alert) mobile app ranking and secure large volumes of loyal customers.