In tune, in time.
Precision tuner, live metronome.
A tuner that shows pitch to a fraction of a cent. A metronome that never drifts. One purchase.
Hear the note land.
TuneTheory listens every ten milliseconds and shows pitch to a fraction of a cent.
The needle moves as you turn the peg. The moment the note lands it turns teal and stops, and a soft chime plays the note you just tuned. That's it, you're in tune.
Under it is the live waveform of your string. Sharp or flat, it drifts sideways. In tune, it stands perfectly still and glows. The chromatic tuner runs the same detector, with the nearest note, frequency, and cents, and a reference pitch you can set anywhere from A4 = 415 to 466 Hz.
45 instruments. 217 tunings.
Guitar, bass, ukulele, violin, cello, banjo, mandolin, and on through the string section. Standard, drop, open, and artist tunings for each, with new artist tunings added every month.
- String detection. Play a string and its pill lights up. No tapping through the strings first.
- Retune guide. Pick a new tuning and see which way each string goes, one peg at a time.
- "What am I tuned to?" Play your open strings and TuneTheory names the tuning.
- Capo. Set the fret and every target moves with it.
A metronome that never drifts.
Every click is placed at an exact audio sample inside the audio engine, not scheduled from the screen. At any tempo, for as long as you play.
Grooves
A groove sets the meter and the pattern. Pick one and play.
- Straight
- Backbeat
- Shuffle
- Waltz
- 6/8 Jig
- Bossa Nova
- One Drop
- Train Beat
Living grooves
- Challenge drops beats out so you hold the time yourself.
- Evolve builds over sixteen bars.
- Surprise rewrites the pattern every four.
The grid
Hold any cell to rest it, accent it, or give it its own sound. Swing, tempo ramps, and presets. Click, haptic, or a flash of the screen, or all three.
- 2/4
- 3/4
- 4/4
- 5/4
- 6/8
- 7/8
Eight kits.
From clean clicks to felt kicks and kalimba. Tap play next to any kit, locked or not, to hear it without changing anything.
- Classic
- Clean, direct hits for everyday practice
- Pulse
- Synth tones that shift with every accent
- Echo Meridian
- Dubby hits with a trail of echo
- Funk Architect
- Tight, dry, and built to groove
- Soft Focus
- Felt kicks and kalimba tones for quiet rooms
- Canopy Percussion
- Hand drums, shakers, and wood
- Circuit Ritual
- Electronic hits with a hard edge
- Blue Smoke
- Smooth, hazy tones that drift
Free, and TuneTheory Pro.
The free tier is a real tuner and a real metronome. Pro is one purchase. No subscription.
Free
- Standard tuning on guitar, bass, and ukulele, plus Drop D
- The chromatic tuner
- 2/4, 3/4, and 4/4
- The Classic and Pulse kits
- The Straight and Backbeat grooves
TuneTheory Pro
Everything, one purchase, forever.
- Every instrument and every tuning
- Strobe mode in the chromatic tuner
- Every kit and every groove, and the living grooves
- 5/4, 6/8, and 7/8
- Swing, tempo ramps, and presets
Pro content is always visible in the app, with a lock. Nothing is hidden, and you can try any Pro kit or groove for a few seconds before you buy.
Nothing leaves your phone.
No account. No analytics, no ads, no tracking.
The microphone is used only to detect pitch, and audio never leaves the device. Purchases are handled by Apple. Read the privacy policy.
