Guitar Tuner, Ukulele & Bass

Master the art of tuning with Guitar Tuner, Ukulele & Bass, the free professional-grade tuner trusted by over 1 million musicians worldwide. Whether you're tuning a guitar, bass, ukulele, violin, or any string instrument, this app delivers studio-quality precision in your pocket.

Tuning has never been simpler. Just place your device next to your instrument, play each string, and watch the app instantly recognize the note. A color-coded display shows you exactly what to do: green bars indicate you're in tune, red bars show you need to adjust. No confusion, no guesswork—just accurate tuning in two steps.

Advanced musicians gain access to a powerful spectrum analyzer that visualizes the exact frequencies your instrument produces. A precision arrow tracks the harmonic being tuned, giving you complete control over every nuance. For those who prefer traditional methods, the Diapason feature plays reference tones at any frequency you choose, letting you tune by ear with A440 or custom pitches.

Customization is built in for non-standard tunings. Calibrate the app to any reference note, explore alternate musical temperaments, and switch between naming conventions—perfect for experimental tuning, classical setups, or regional variations. Fine-tune the spectrum analyzer visualization with adjustable line thickness, peak highlighting, and sensitivity up to 0.1 cents for competition-grade accuracy.

The Sonogram view adds another dimension, displaying how frequencies evolve over time as a dynamic green line moving through the spectrum. This visual feedback helps you understand your instrument's tonal character and develop better tuning technique.

Tuning on the go just got easier with Wear OS integration. Install Guitar Tuner, Ukulele & Bass on your smartwatch running Wear OS 3.0 or later, and keep your hands free for playing while your wrist displays the same precision tuning information. No need to fumble for your phone mid-practice.

Compatible with electric guitars, acoustic guitars, classical guitars, bass, ukulele, banjo, mandolin, violin, viola, cello, piano, wind instruments, and even vocals. Whatever stringed or wind instrument you play, this tuner delivers professional results.

Fully free with no paywalls or hidden costs. Download Guitar Tuner, Ukulele & Bass today and join millions of musicians who trust this app for perfect tuning every time.