★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
Where this app stands in Israel, updated 2 Nov 2026
Top free
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Top paid · All apps and games
#75 –
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Version 3.1 - Seventh chords: switch between Triads and 7ths to see and hear Cmaj7, Dm7, G7 and more in every key, including in the progressions. - Note names: choose C D E, Do Re Mi or German names (H, B, Fis, Es) in the settings menu. - Sound options: turn the sound on or off and pick a tone: Piano, Soft pad or Pluck. - Scale on the keyboard: chord notes are bright, the other notes of the key are shown softly, with note names. - Your settings are remembered.
Circle of Fifths is a clean, fast reference for musicians, songwriters, and students. Turn the wheel to any key and instantly see its key signature and the seven chords that belong to it. Chords are colour-coded by function (tonic, subdominant, dominant), so the structure of the key is clear at a glance. - Major and minor keys, with relative keys and correct note spelling (F sharp vs G flat) - Hear every chord, and the full scale, with a built-in piano sound - Piano keyboard showing the notes of the selected chord - Ready-made chord progressions (pop, 50s, ii-V-I, epic minor and more) that you can play in any key - Key signatures drawn on the staff - Works on iPhone and iPad, light and dark mode, VoiceOver support The circle of fifths shows the relationship between the 12 tones of the chromatic scale, their key signatures and the associated major and minor keys. C major sits at the top with no sharps or flats. Each step clockwise adds a sharp; each step counter-clockwise adds a flat. No ads. No subscriptions. No tracking.