Chet vs Ella

Chet is a free iOS and macOS app for ear training and music theory. A guided learning path supports self-paced study, alongside a library of musical games. Exercises cover intervals, scales, arpeggios, chords, progressions, tonal sequences, famous tunes, and atonal sequences. Responses can use piano, guitar, bass, or multiple choice, and MIDI compatibility allows a MIDI keyboard. Practice Mode uses spaced repetition. Users can sign in to track progress and compete with musicians worldwide. The plan is listed as free, with no paid price or usage limit stated. Chet’s privacy policy says the app collects in-app activity such as exercise data and may transmit it to cloud storage. It is not intended for children under 13, and absolute data security cannot be guaranteed. Privacy questions and deletion requests go to [email protected].

Ella is a free sight-singing app that trains the ear and voice through exercises, microphone feedback, and progress tracking. It listens through the device microphone, evaluates pitch, intonation, and intervals, and displays singing pitch in a detailed graph. An on-screen tuner and varied exercises support practice, while a guided learning path moves through musical concepts from beginner to advanced. Practice Mode lets users listen before singing; Play Mode tests skills and records personal-best scores. The App Store listing also describes global leaderboards and competition with friends. Ella runs on iPhone, iPad, and Mac, with iOS and macOS listed as platforms. Its privacy policy says exercise data and other in-app activity may be sent to the company’s cloud and saved on the device. Users may choose to share usernames, scores, or exercise data in some exercises. The app does not access contacts, phone numbers, or messages. It is not intended for children under 13, and absolute security cannot be guaranteed.