About this app
Free, accurate chromatic tuner for guitar, bass, ukulele, and banjo. Tune quickly with a responsive cents display and support for standard, drop, open, and alternate tunings. Unlock Octave Pro once for custom tunings, strobe mode, metronome, profiles, and setup tools—no subscription. PRECISION YOU CAN HEAR Octave Tuner identifies your note and exact frequency in real time. No lag. No drift. Just accurate tuning, every time. BUILT FOR MULTIPLE INSTRUMENTS Create and save custom profiles for each of your guitars, basses, or ukuleles. Switch between instruments in seconds—no reconfiguring, no guesswork. Whether you play a vintage acoustic, an electric with Drop D, or a short-scale bass, your settings are ready. INTONATION GUIDE Go beyond open-string tuning. Octave Tuner's intonation guide helps you dial in pitch accuracy across the fretboard. BUILT-IN METRONOME Practice in time with a clean, distraction-free metronome. SUPPORTS GUITAR, BASS & UKULELE Optimized tuning profiles for standard and alternate tunings across guitar, bass guitar, and ukulele.
Latest release
What’s New
Octave Tuner is now free to download. Existing customers keep everything: if you bought Octave before this update, Octave Pro is unlocked automatically at no charge. FREE FOREVER The accurate core tuner, plus standard and common tunings. OCTAVE PRO (ONE-TIME UNLOCK) Every advanced and custom tuning, instrument profiles, metronome, setup assistant, String Health, strobe tuner, and performance modes. ALSO IN THIS UPDATE - Fixed 5-string bass low B detection so the lowest string tunes reliably. - Smoother, more accurate tuning, with first-run guidance to get you set up fast.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 28, 2026 · 5:39 PM Free
Screenshots
