THE FINDINGS: A study finds that more than half of Americans who use phone apps say they have decided not to install one once they found out how much personal information they'd have to share. Thirty percent of app users say they have removed an app once they found out how much information it collected about them.

ABOUT THE APPS: Mobile apps include maps and games, and some want to know a person's location using the phone's GPS function.

ABOUT THE STUDY: The Pew Internet & American Life Project released it Wednesday.