"The resulting analysis shows that for customers using an app for the first time between January and March, about 22% of them never open the app again. In the second and third quarters, the rate of one-time usage is flat at 26%. One-time usage grows to over 28% in the fourth quarter, but some of those customers may still use the app again in early 2011."
Admit it - you've used an app once and then never bothered to click again. We all do it, although it's interesting to see the data presented here. I suspect we aren't seeing significant differences between those rates above, and I also wonder how much of this depends on app segment. One thing is for certain, it's a lot nicer to have app stores now that let us try before we buy and give us comments and ratings. I recall my early WinMo days of "that looks cool, buy it". I probably spent around $100 (over 3 years) on apps I never used more than 3 times.