Whisper Challenge is the best app for fun and laughter. With it, you can easily play a prank on your friends or family and have a great time. All you have to do is download the app, enter the code, and you're ready to start. The first thing you need to do is select one of the options that are available and then choose the audio clip that you want to use. Next, you have to select the phrases that you want to read and the audio that you want to play in the background. When you are done, just record and post the video. You can also add a caption to the video if you want.