Guitar+ brings the essential tools for guitar practice into one simple app. Keep time, check your tuning, play reference tones, and open your scores without breaking your practice flow. Key features - Metronome: Set BPM and time signature with a clear, steady click. - Tuner: Detect pitch with the microphone and view cents deviation. - Tuning Fork: Play reference tones including A4, E4, D4, and G4. - Scores: Import and view PDF, JPEG, and PNG sheet music. - iPhone and iPad: Quick access on iPhone, comfortable score viewing on iPad. The microphone is used only for pitch detection in the tuner. Audio is processed on device and is not stored.