"What's the Skeletal Maturity" is an iPhone application developed by Raymond Liu, falling under the category of Education & Reference with a focus on Medicine. This evidence-based tool is designed to assist clinicians in estimating the skeletal age of pediatric patients quickly and accurately using orthopaedic radiographs.

The program supports various skeletal maturity systems such as Proximal Humerus Ossification System (Shoulder), Olecranon Apophyseal Ossification System (Elbow), Sanders Hand System (Hand), and more. It provides a comprehensive range of options for clinicians to choose from, including systems for the wrist, hip, knee, and heel. Clinicians can utilize this tool to enhance their diagnostic accuracy and efficiency in assessing skeletal maturity in pediatric cases.