App Ops Shortcut (com.katecca.appopsshortcut) on Google Play
This app do nothing but it is a shortcut to the hidden "App Ops" menu introduced since Android 4.3. With the access to "App Ops", you can control the permissions of each app installed on your device. To protect your privacy, you can revoke any suspicious permissions granted by a particular app.Permissions can be controlled by the "App Ops" menu include:1. Location2. Personal information (Contacts, Call Logs etc)3. Messaging4. Notification and other hardware functionalties