Drop2: Jazz Guitar Ear Trainer — your complete practice coach
Drop2 listens to your playing through the microphone and gives you instant, note-by-note feedback — no cables, no interface, just your guitar and your phone. It even hears you over its own backing band: play along over the speaker, no headphones required. Six focused trainers take you from "where is that note?" to soloing over the changes, and a smart scheduler points your practice at what you haven't nailed yet. Or put the guitar down and train your ear alone.
Works with acoustic and electric guitar. All listening happens on-device — your playing never leaves your phone. Designed for iPhone and iPad.
FRETBOARD TRAINER
Hear a note, then find and play it anywhere on the neck. Start with naturals, add sharps and flats, then the whole fretboard. Spaced repetition drills the positions you keep missing, and a coverage dashboard tracks every one.
SCALES & ARPEGGIOS
Play the one-octave scale or arpeggio for any root and chord quality — m7, 7, maj7, m7b5, dim7, mMaj7 — and have each note checked by ear. A full-neck map colors the chord tones and degrees so you see the shape as you learn it. A built-in curriculum opens new keys and qualities as you master the basics.
LINES — SOLO OVER THE CHANGES
A walking bass and drums loop a progression or standard form — ii–V, the blues, the bird blues, rhythm changes, the Coltrane cycle, Take the A Train, So What, Blue Bossa, Autumn Leaves, All the Things You Are, and more — while you improvise. In Targets mode the app prescribes the guide tone to land each bar and grades your voice-leading. In Free mode every note is classified live — chord tone, tension, avoid note, or outside — on a color-coded "good-note" neck map. Score with wired headphones, or over the speaker: an on-device model picks your guitar out of the band.
DROP-2 VOICINGS
Learn and drill the essential jazz chord voicings across roots, qualities, inversions, and string sets. Browse any shape, hear it strummed, read its intervals — then quiz yourself: the app names a chord, you play it, and all four notes are scored. Answer note by note or strum the whole shape — strums are checked octave by octave, so it tells inversions apart. Includes ii–V progressions and a daily spaced-repetition review.
PLAY-ALONG BAND
Comp the changes in time with a looping rhythm section, your voicings scored as you strum.
EAR TRAINER
No guitar, no mic — pure listening. Drop2 plays an interval, a chord or a cadence, and you answer on the neck: intervals as degree-labelled circles on a fretboard pad, chords as real drop-2 voicings in any inversion, and cadences — ii–V–I, minor ii–V–i, ii–V and more — as voice-led shapes that step across the neck as they sound. Hold any answer to hear it before you commit. Review what's due with spaced repetition, and track it on a coverage grid.
TUNER & METRONOME
A chromatic tuner with a cent gauge and a fretboard view of the note you're on, plus a metronome with a real sampled drum-kit voice.
PROGRESS THAT KEEPS YOU GOING
Every session feeds a unified history: current and best streak, an activity heatmap, accuracy trends, recent sessions, and a "Today" plan for what to practice next. Your history syncs across devices with iCloud, with a JSON backup you control. A Home Screen and Lock Screen widget puts your streak and what's due one tap away, and an optional daily reminder stays quiet unless something really is due.
FREE & PREMIUM
Free: the Fretboard trainer, Drop-2 Learn & Train, the tuner and metronome, your streak, history and widget, and a taste of the ear trainer.
Premium unlocks the full coach: Scales & Arpeggios, the Lines soloing trainer, the Play-Along band, ear-trainer stats and review, your daily practice plan, and long-term accuracy charts.
Drop2 Premium is an auto-renewing subscription (monthly or annual) with a free trial. Subscriptions renew automatically until cancelled; manage or cancel anytime in your App Store settings.
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