Colorful Call Alerts is an Android application developed by SmartJoys that lets you customize your call alerts and messages with your favorite colors. You can choose from up to 16 million colors to get notified with a flashlight blinking in your selected color. This app can also be used as a prank on your friends by pretending that your phone has the ability to blink with colorful lights. However, when you receive an actual call or SMS, the flashlight will blink normally.

The app is easy to use and navigate. You can customize your alerts by selecting your favorite color and setting the blink frequency. It works well with all Android devices and is available for free on the Google Play Store.