Fact: 90% of apps downloaded are deleted during the next 30 days. Here is why.

That is amusingly ironic, considering this is coming from a company whose description is "Inapptics helps app makers analyze user behavior in their mobile apps."

But it seems the corpus of mobile apps is similar to the situation with regular desktop software since selling software first became popular --- very few good ones, and a very very "long tail" of complete crap. From my experience on the desktop, good is not necessarily popular either.