OnBoardResearch GoTune - AppClip GT1 GoTune AppClip The GoTune AppClip is perfect for tuning in noisy environments or times where absolute accuracy is required It's easy to usesimply clip the AppClip onto your instrument, plug it into your smart phone and fire up your favorite tuning app The AppClip isolates the vibrations of your instrument, and processes them into the best possible format for your phone or tablet The GoTune AppClip is perfect for tuning in noisy environments or times where absolute accuracy is required