OpenFret Guitar Tuner vs Centimental

OpenFret Guitar Tuner is a fast, accurate, and completely free tuner designed for guitar players. Lightweight and easy to use, it helps you tune your 6-, 7-, or even 8-string guitar in seconds whether you're practicing at home, rehearsing with a band, or performing live. With support for iPhone, iPad, and Apple Watch, OpenFret Guitar Tuner keeps your instrument perfectly in tune wherever you are.

Centimental is a chromatic tuner for guitarists, bassists, and anyone who takes pitch seriously. Tune your guitar, bass, or ukulele with precision pitch detection powered by professional audio technology. Whether you're at home with your acoustic, on stage with an electric, or on the go with your ukulele, Centimental gets you in tune fast and makes the experience genuinely enjoyable. TWENTY-PLUS VISUAL THEMES Pick a tuner that matches your mood. Classic Needle for the vintage analog feel. Strobe Tuner for rock-solid accuracy. Neon Arc, Spinning Platters, Foucault Pendulum, Metronome Arm, Horizon Split, Converging Columns, and many more. Swipe through themes on the tuner screen or browse the full catalog — each one draws the same precise pitch data in a different visual language. EVERY INSTRUMENT YOU PLAY • 6-string guitar • 7-, 8-, and 12-string guitar (Pro) • 4-string bass • 5- and 6-string bass (Pro) • Ukulele ALTERNATE TUNINGS BUILT IN Over 30 presets covering Standard, Drop D, DADGAD, Open G, Open D, Open E, Open A, Double Drop D, half-step down, whole-step down, Nashville tuning, baritone, and more. Create your own custom tunings for any instrument (Pro) — save as many as you want, sync them across all your devices. CAPO SUPPORT Set your capo fret and Centimental shifts all targets automatically. Tune to the capo'd pitch while still reading open-chord note names. APPLE WATCH APP — FULLY FREE Tune from your wrist. The Watch app is completely free and includes every Watch-compatible theme regardless of your Pro status. Haptic feedback guides you to pitch so you can tune by feel — perfect for backstage tuning in the dark. iCLOUD SYNC (PRO) Your custom tunings, favorite themes, and preferences sync automatically across your iPhone, iPad, and any other signed-in Apple device. Build a tuning on one device, use it everywhere. NO COMPROMISES ON PRIVACY Centimental processes audio entirely on-device. Nothing is recorded. Nothing is transmitted. We don't track you, collect data, or show ads. Ever. CENTIMENTAL PRO — ONE-TIME PURCHASE • Every visual theme • 7-, 8-, 12-string guitar and 5-, 6-string bass • All alternate tunings and custom tuning builder • Capo support • iCloud sync across devices Buy once, use forever. No subscription. WORKS WITH YOUR GEAR Plug in a USB-C audio interface for the cleanest possible signal, or use your device's built-in microphone. Centimental automatically adjusts sensitivity for whichever input is active, and handles route changes the moment you plug or unplug. Fast. Accurate. Beautiful. Centimental.