Butterfly knife - prank is an Android application developed by Nechapps. This app is designed to simulate the experience of using a butterfly knife. With realistic sounds and vibrations, it creates the illusion of opening and closing a butterfly knife.

The main purpose of Butterfly knife - prank is to provide entertainment and prank your friends. It is important to note that this app does not have the functionality of real butterfly knives and is completely harmless. It is purely a joke app that aims to create a realistic butterfly knife effect for fun and amusement.

If you're looking for a lighthearted way to play a prank on your friends, Butterfly knife - prank is a great choice. Just remember to use it responsibly and ensure that everyone involved understands that it's all in good fun.