Butterfly in Phone lovely joke is a free entertainment application developed by Just4Fun for Android devices. This app displays a very realistic animation of a flying butterfly, which sits on the icons or around them and spreads its wings. The motion of the blue butterfly has been created based on a real video of a wing-like insect, making the movements of wings and trunk look very lifelike. The animation of the insect is displayed on a transparent background and always stays on top of the screen, no matter what application you have open.

One of the features of this app is the ability to set the time after which the butterfly appears on the screen, which can be helpful in pranking your friends. With this function, you can easily borrow your friend's phone and install the app, set the time, and give it back to them. After the set time, the butterfly will appear on the screen, and your friend will be pranked that a real butterfly is sitting on their phone.

The app is easy to use and offers a fun way to prank your friends. It's a great way to add some entertainment to your life and have some fun with your friends.