Tune up, keep time, and find the chords in any song you already own. FretTutor hears you play and shows you every way to play what it finds — with no accounts, no ads, and no analytics. Everything is computed on your iPhone, and your audio never leaves it.
A tuner, a metronome, a chord library, a fretboard explorer, a song analyzer, a practice camera, and mic-graded daily games — built as one native app.
Accurate to within two cents on every string, measured at the rate your iPhone actually records. Standard tuning plus drop D, drop C, half and full step down, open G, open D and DADGAD. It knows which string you are on and ticks each one off as it comes to pitch.
40 to 240 bpm with tap tempo, time signatures from 2/4 to 12/8, and subdivisions down to sixteenths. The click is scheduled on the audio clock rather than a timer, so it will not drift away from you over a long practice.
27 chord qualities across all 12 roots. Every chord shows playable voicings, tappable staff notation, its tones on the neck, and a parent scale that always fits. The Circle of Fifths lives here too.
Pick a root and a chord or scale. Step through every voicing on the neck — D major alone has 19 — or box off scale positions that tile the whole fretboard. Tap any fret to hear it.
Bring in a song from Files or your music library — or capture one through the mic. FretTutor finds the key, chords on a synced timeline, tempo, a tab sketch, structure, and a capo suggestion. Works in airplane mode.
Record short takes of your playing. Keep the ones you're proud of, note what to fix, share through the share sheet. Takes stay on your iPhone.
A daily exercise graded live through the microphone — play what it asks and hear whether it landed. Play Along runs whole progressions. Earn gold, silver and bronze awards.
FretTutor was built on one rule: your playing is yours. All recognition runs on a built-in on-device engine.