BOSS famous for their guitar pedals have released a mobile version of their Chromatic Tuner pedal that’s completely free.

The BOSS Tuner app brings BOSS’ trusted and world-renowned chromatic tuning technology to Android mobile devices. Available as a free download, the convenient app features the familiar look and intuitive display style of the best-selling TU-3 pedal tuner. Using the mic in your Android device, you can tune a guitar, bass and other instruments like violin, cello, brass, etc.

Although there have been numerous tuning apps available for a while, a lot of them are paid and/or inaccurate. As a trusted music equipment manufacturer BOSS’ app combines simplicity with performance, with a tuner that you can jump straight into and get tuning.


  • BOSS’s famous chromatic tuning technology in a free mobile app
  • Features the look and interface style of the top-selling TU-3 Chromatic Tuner
  • Provides hands-free chromatic tuning with a 21-segment meter, note display, and visual tuning indicators
  • Tune instruments and voices using the built-in mic in your mobile device
  • Audible reference pitch function for tuning by ear
  • Customisable background colour
  • Newsfeed provides info on BOSS artists and gear
  • Compatible with iOS and Android devices

BOSS pedals music iOS Android guitar bass

BOSS say:

In 1983, BOSS launched the TU-12, the world’s first automatic chromatic tuner, and has remained an industry leader in electronic tuner technology ever since. TOday’s BOSS tuner lineup includes many unique hardware models, offering musicians and educators top-quality solutions for a wide range of applications. The BOSS Tuner App expands the range into the world of mobile apps for the first time, offering a go-everywhere tuning solution for current BOSS users and anyone who needs accurate tuning on the move.

With its intuitive TU-3 interface and display style the BOSS Tuner App will be immediately familiar to users of the top-selling stompbox tuner for guitar and bass. The 21-segment meter and note display provide instant tuning feedback, and two arrow indicators clearly show when a note is in tune. The app can also play audible reference pitches, allowing users to tune by ear if desired.

A newsfeed is included in the app as well, delivering up-to-date information on BOSS products and the artists who use them.

You can download the app for free now for Android from the Google Play Store and for iOS devices on the Apple App Store.