BOSS is bringing its chromatic tuning technology to iOS and Android with a new free app that takes visual cues from its TU-3 pedal tuner.
Designed to provide "accurate on-the-go tuning for guitar, bass, ukulele, and other instruments," the BOSS Tuner app can also be used by vocalists as a visual pitch-checking tool.
BOSS has a long history in the guitar tuning market, releasing the TU-12, the world's first automatic chromatic tuner, back in 1983. However, this is the company's first foray into the world of smartphone- and tablet-based tuning.
The app features a 21-segment meter and note display that are designed to provide visual feedback, while two arrow indicators show you when a note is in tune. If you'd rather tune by ear, you can do so via the audible reference pitches.