Cat Whistle Training is a free iPhone app developed by Susan Andryk in the Utilities & Tools category. With this app, you can train your cat to come at the sound of a whistle or simply have fun annoying your friends and family with high-frequency sounds.

The app comes with a user-friendly cat training guide and instructions, making it simple and enjoyable for both you and your cat. By using the whistle, you can easily call your cat back home from outside without having to shout. The sound of the whistle carries much farther than your voice, ensuring that your cat hears it even from a distance.

With proper training, your cat will eventually associate the sound of the whistle with positive experiences, such as the opening of a can of treats. The app also includes a soundboard of fun whistles that you can use to play with your cat if it's not in the mood for training.

If you're satisfied with the app, the developer kindly requests that you leave a happy review. Additionally, you can explore other cat and animal sound apps by Susan Andryk under the "More Sounds" tab in the app. Give Cat Whistle Training a try and start training your cat today!