The free app is designed to help users improve their skills in identifying muscles and neighboring structures using ultrasound. It features instructive ultrasound cross-sectional images and videos, as well as cross sections, scouts, and the option for individual annotations. The app can be used as a point-of-care tool on a smartphone or as a reference app for anatomical studies. Users can access online content for quick reference and updates. Additionally, the app is available for download, ensuring permanent availability. With its detailed instructional content and user-friendly interface, this app is an excellent resource for healthcare professionals and students seeking to improve their ultrasound skills.