Rainbow Friends Scary Prank is a free prank calling app developed by Stellar Box for Android devices. It falls under the Lifestyle category and offers a unique way to prank your friends and family. The app simulates a fake caller ID and allows you to receive prank calls from the Rainbow Friends, particularly the blue monster, with a video call feature to add to the fun.

With a realistic voice call, the app offers unlimited prank calls and fake chat messages from the Rainbow Friends. You can also set the timer to receive an incoming video call prank and customize the caller theme and fake caller ID on the screen.

Although the app is not meant for real calling purposes, it is a great source of entertainment and perfect to have a good time with friends and family. However, it is essential to note that the copyright used in the app is authorized content of the organization and not competing with them in any way.