A440: Tuner & Metronome

A440 is the chromatic tuner and metronome for musicians who demand precision. Tune with accuracy, practice in perfect time, and access complete musical references in a single app.

Ideal for guitar, bass, violin, viola, saxophone, and many other instruments.

Key features:

• Real-time chromatic tuner — precise pitch detection through the microphone, with frequency display in Hz and deviation in cents.

• High-precision metronome — BPM from 40 to 208, 10 click styles, rhythmic subdivisions, and various time signatures.

• Tuning fork — reference notes with adjustable A4 frequency, for tuning by ear or tuning ensembles.

• Pre-configured instruments — standard tunings for guitar, bass, violin, viola, saxophones, and more.

• Note reference — interactive staff in treble and bass clefs.

• Practice log — track your study time and session history.

• Transposition and calibration — adapt the reference frequency for transposing instruments.

Download A440 and raise the standard of your tuning.