Fiksu: The top 200 free iPhone apps in the US market had 4.06 million downloads in September 2011

Analysis: iPhone app downloads dropped sharply in September

Data released by market research firm Fiksu on October 27, 2011 showed that the number of iPhone app downloads dropped significantly in September this year, possibly because consumers were waiting for the launch of the new version of the iPhone.

Fiksu's App Store Competitiveness Index shows that in September 2011, the number of downloads of the top 200 free iPhone apps in the US market dropped from 3.8 million in August to 4.06 million, a drop of 6%. This is the largest drop Fiksu has observed this year.

Fiksu also found that the cost of acquiring users for apps has also increased, with the cost of acquiring users for iPhone apps increasing 6% in September, from $1.54 to $1.64.

Fiksu's App Store Competitiveness Index is mainly used to measure the average download volume of the top 200 free iPhone apps in the US market.