Twenty minutes, four parts. Tap a part to start it.
Tiers unlock on measured playing, not quizzes.
Tap a string to lock it, tap again for auto. Tune up to pitch — drop below, then come up.
Pick a target tuning — the needle guides every string toward it.
New strings drift — stretch them gently and retune a few times. Temperature changes and capos knock tuning out too; a 30-second check before practice is normal.
Clamp the capo just behind the fret, square across the neck. Then pick each string once, thickest first.
A capo is a transposition machine. Campfire names a key and a shape family — you work out which fret gets you there, clamp it on, and pick each string to prove it.
The 12th fret should sound exactly one octave above the open string. Pick a string, then follow the two steps. Fret lightly, fingertip just behind the fret.
A string that reads sharp at fret 12 no matter what is an instrument setup issue (saddle position) — a guitar tech's five-minute fix, not your fingers' fault.
20 questions. Find the named note on the named string — the app hears your answer. Uses your current tuning.
One string, 60 seconds, as many found notes as you can. Frets 0–12. Wrong notes don't advance — accuracy is speed.
Play the shape one note at a time — Campfire follows along and flags a wrong note the moment it hears one. Free tempo: accuracy first, speed later.
Same seven notes, different home. Campfire holds a root; you improvise over it. Every note you play is named live — chord tone, in-mode, the characteristic tone, or outside.
Earbuds strongly recommended — otherwise the mic hears the drone. Campfire only counts notes that arrive with a fresh pluck, so it ignores its own sustained tone.
Campfire plays a phrase over a drone. You answer the only way that counts — by playing the one note that gives the mode away. Eight rounds.
The characteristic tone is the single note that separates a mode from plain major or minor. Find it and you've named the mode.
Campfire plays two notes. You play the second one back. Ten rounds — the drill that turns theory into an ear.
Earbuds help — otherwise the mic hears Campfire's own notes. It waits for silence before listening either way.
A short phrase, played back by ear. Campfire plays three to five notes from one scale shape; you find them on the neck.
Campfire plays a chord; you answer with the single note that names it — the 3rd for major, the ♭3 for minor, the ♭5 for diminished. The third is where a chord's mood lives.
Campfire plays a four-chord loop. You play back its root movement — just the bass line. Land it and the progression names itself.
Campfire plays a note; you sing it. The same detector reads a voice as easily as a string — and you can't sing a pitch you can't truly hear, which is why this builds an ear faster than anything else here.
Octaves don't matter — sing it wherever it sits comfortably. Tolerance is a generous ±30 cents, nothing here gates your progress, and you can switch it off again in About.
Strum muted strings on every click — 4 count-in, then 16 scored hits. Earbuds keep the click out of the mic; without them, Campfire filters its own click after a Sync.
The click stays on the beat; you fill the gaps. Strum eighths or sixteenths evenly between the clicks — this is where loose timing hides.
Arpeggio first — pick each string on its own and Campfire verifies every note, so it can tell you which finger is off. Pass that, and Strum mode judges the whole chord.
Sixty seconds, two chords, back and forth. Each verified change counts. This is the classic one-minute-changes drill — the fastest way to make chord shapes automatic.
The CAGED idea: five shapes you already know, slid anywhere on the neck. Campfire names a chord — you work out where the shape lands and play it.
Campfire loops a progression and plays each chord as it arrives. Your job: land a chord tone in every bar. Hitting the 3rd or 7th — the notes that actually spell the harmony — scores double.
Earbuds recommended. One note per bar is plenty — this is about choosing the right note, not playing many.
A guitar practice app that listens — built from classical signal processing, not AI. Everything runs on this phone: no accounts, no servers, no tracking, no network requests at all. Your audio is analysed live and never recorded or sent anywhere.
Backup saves a small file of your records and personal bests. Keep it somewhere safe — reinstalling clears app storage.