Clefira vs Musopen

Clefira provides music practice for interval and chord exercises, sight reading, piano-note recognition, and teacher-guided drills. The free Student edition offers interval practice with three answer choices and scored sessions, alongside chord work covering major, minor, augmented, diminished, suspended, and seventh chords. In sight-reading exercises, students identify treble- or bass-clef notes using a mini keyboard and receive immediate visual feedback. Sessions include lives, streaks, XP, scoring, replay, slow mode, restart and go-back controls, and summary overlays. The Student edition is aimed at learners age 13 and older and adult learners, and is listed for Windows, Android, and web. Windows requires version 10 or 11, 64-bit is recommended, and ear-training playback requires speakers or headphones. Clefira describes the Android Student app as self-contained, with no sign-in, cloud sync, or internet access. Practice and profile data stay local by default; the maker says it has no analytics, trackers, or ads. Optional microphone and MIDI input are processed on-device and not transmitted. Cloud sync is opt-in. A paid Teacher edition is planned, but checkout and license delivery are not enabled.

Musopen has no write-up on Specifiction yet; its figures are above.