One of our students has built a great security app for the Android platform with support for crowed intelligence – ContrOWL.
ContrOWL is a security app that helps you find potential threads among your installed apps. It can also check freshly added apps on the fly and notify you if an app is rated as suspicious. ContrOWL also gives you information about top used permissions and broadcast intents of malware apps which should help you to evaluate them.
Please support him and test his app!