Pedalboard standard TU-2 upgradedBoss has been the industry leader in instrument tuning technology since 1983, when it introduced the TU-12, the world's first automatic chromatic tuner. This ...

Chromatic Tuner is available for all BlackBerry 10 smartphones and the BlackBerry PlayBook, for those who still use one. It costs $1.99. Not bad compared to other tuners you can buy. And since you'll ...

BB-Tuner provides accuracy of an audio signal with a +/- 1 percent margin of error, according to the developers. BB-Tuner is available online for US$39.95 and can also be purchased at retailers.