App Usage is an app/device usage management app. It provides the following key features: ★ App usage history: gather the usage time about apps that you used ★ Check phone history: gather counts of you checked the phone ★ Activity history: gather the time that you open apps ★ Location history: display apps you used at a location ★ Notification history: show the time that apps posted notifications ★ Battery history: display the battery usage graph ★ Over-use reminder: remind when you spend on pho