Ear Training - Music Skills is an app that helps users develop their musical skills by challenging them to identify musical notes by ear. The app has a Train page where users can listen to a reference note and then play their guesses on an on-screen piano. The app will play one to five random notes, depending on the user's selection, and the user must match their guesses to the reference note. If the user gets the answer right, they can press Shuffle, to get a new set of notes. If the challenge is too difficult, the user can press Answers to reveal the correct notes. The app also has a switch to toggle between flat and sharp spelling for the on-screen note names, and a switch to determine whether or not the reference note changes when the user shuffles. There is also an option to turn on a Random number of random notes switch, which hides the number of notes from the user and changes it each time they shuffle, in order to help them get used to distinguishing different chords without knowing the number of notes in advance.