Free BOSS Tuner App Now Available

Trusted BOSS Tuning for Your Mobile Device

BOSS Tuner App

The BOSS Tuner app’s main screen in landscape view on an iOS device.

The new BOSS Tuner app brings BOSS’s leading chromatic tuning tech to your favorite smartphone or tablet, giving you accurate tuning everywhere you go. Available as a free download for iOS and Android devices, the app features the look of the best-selling TU-3 pedal tuner. It works with the built-in mic on your device, and also has the ability to sound reference pitches for tuning by ear.

BOSS Tuner App: Versatile and Convenient

With its intuitive TU-3 interface and display style, the BOSS Tuner app is a familiar sight for fans of the industry standard stompbox tuner for guitar and bass. It offers a 21-segment meter and note display for instant feedback, plus two arrow indicators that clearly show when you’re in tune.

BOSS Tuner App

The BOSS Tuner app’s main screen in portrait view on an Android device.

The app works great for tuning guitar, bass, ukulele, and other instruments, and also excels as a visual pitch-checking tool for practicing your singing. A newsfeed is included in the app as well, so you can always stay up to date with the latest BOSS gear and info.

The BOSS Tuner app is available as a free download from the App Store and Google Play.

BOSS is a leader in electronic tuning technology, offering a wide range of models for all types of performance, practice, and education applications. Visit to check out our extensive tuner lineup.

BOSS Tuner App

The BOSS Tuner app also includes a newsfeed for keeping up with the latest from BOSS.