Cello Tuner is a free iPhone application developed by Kit A Yu. As the name suggests, it is a useful tool for cello players who want to ensure their instrument is perfectly tuned.

With Cello Tuner, you can easily tune your cello by playing the four standard tuning notes - C, G, D, and A. The app provides accurate tuning notes for each string, allowing you to adjust your cello's strings with precision. Whether you are a beginner or a professional cello player, this app can be a valuable companion.

The user interface of Cello Tuner is simple and intuitive, making it easy to navigate and use. The app provides clear and distinct tuning sounds, ensuring that you can easily differentiate between the different notes.

Overall, Cello Tuner is a handy utility for cello players of all skill levels. It provides accurate tuning notes and a user-friendly interface, making it a valuable tool for keeping your cello in tune.