iPhone applications are used an average of 20 times each

"Greystripe has dissected the usage patterns of 600 free, ad-supported iPhone applications in its ad network to come to a number of conclusions about consumers habits on the iPhone. Generally, it found that while usage may be intense, applications have a limited lifespan.

Here are the findings:

—Time spent per iPhone app session: an average of 9.6 minutes.
—Total number of times applications are accessed: 19.9 times before consumers stop using them.
—Users with household incomes above $165,000: 15 percent.
—Gender breakdown: 52 percent male and 48 percent female."

Source: Greystripe, cited in mocoNews, 28th April 2009