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Mobile Apps: Usage Pattern

I am guilty of that... I have downloaded apps only to decide they were worthless and removed them. Either it works and I use it, or I remove it.

Free or $1 or $2 makes it less risky to see if something will work. It is worth $1 to me to see if something solves a problem, I would not risk $50 for a software program.
 
I suspect first time mobile users treat 90%+ of the apps like that: run 1-2 times and uninstall.
It's with your second, third device (smartphone or tablet) the excitement fades away.
But switching platforms brings it back at least partially...

Would be nice to have platform breakdown.

Diogen.