Cat Speaker is a free iPhone app developed by Astrologic Games LTDA. With this app, you can pretend to record a message to your cat and have it played back in cat sounds.

The app simulates an audio analysis on your voice and translates it into cat language, creating a fun and interactive experience. It allows you to have a conversation with your cat and make your friends believe that you can actually communicate with your feline friend.

Cat Speaker is designed to be realistic, and cats should react to the sounds produced by the app, making the prank even more convincing. The app also features a soundboard with fake cat commands that can instantly grab your pet's attention.

Please note that this app is intended for fun and entertainment purposes. If your cat shows signs of stress, it is recommended to use the app to prank your friends instead. Show love and support for your cat and try again at a more suitable time.