Tune Up. Play
On.
Fast, accurate pitch detection for guitar and bass, plus a built-in metronome — every tuning, any reference pitch, works completely offline.
Free to download · iOS & Android
Everything you need to sound in tune.
Built for practice, gigs, and everything in between. Simple to use, precise when it counts.
Precise Pitch Detection
Real-time mic-based tuning with a fast, stable needle — no more guessing if you're actually in tune.
Every Tuning You Need
Standard E, drop tunings, and 7- and 8-string sets, all one tap away. Auto-detects the closest string.
Built-In Metronome
Tap tempo, time signatures up to 7/8, and a range of click sounds to practice timing alongside pitch.
Custom Reference Pitch
Dial in A4 anywhere from 432–444 Hz to match your ensemble, recording, or personal preference.
Seconds to start, always in tune.
No sign-up. No setup. Just open the app and go.
Pick Your Tuning
Choose from standard, drop, or extended-range presets — or let Auto mode find the closest string for you.
Pluck a String
The mic picks up the pitch instantly and shows exactly how sharp or flat you are.
Tune Until It's Green
Adjust until the display locks in-tune, then move to the next string. That's it.
Never play out of tune again.
Free to download. No credit card required.