We all have our go-to apps, whether they're for fitness tracking, social networking or playing fun games like Fruit Ninja.
But some of them, including popular kids games, are privacy offenders because they collect troves of data on users, including location and even gaining access to users' photos and text messages.
Find out which apps are the worst offenders in this infographic, put together by Vocativ with help from Jason Hong, a professor of computer science at Carnegie Mellon and founder of PrivacyGrade.org, a site that ranks apps by how well they respect your personal privacy.