A-Tuner Lite is a free chromatic tuner for a wide range of instruments, from strings to winds.

Play a note and your device's microphone picks it up. A rotating indicator and bar show whether the pitch is sharp or flat, while the note name, octave, frequency, and pitch deviation appear at a glance. Pitch deviation is displayed in 0.1-cent increments, helping you make fine adjustments with confidence.

The built-in tone generator plays an A4 reference tone, making it useful for ear-training practice as well. You can also adjust the concert pitch, input sensitivity, in-tune tolerance, and display theme to suit your instrument and playing environment.

Key features:
• Pitch deviation displayed in 0.1-cent increments
• Clear visual guidance with a rotating indicator and bar
• Note name, octave, and frequency display
• Adjustable concert pitch
• Automatic or manual input sensitivity
• A4 reference tone
• Light and dark display themes

Try A-Tuner's precise, easy-to-read tuning experience for free.

A-Tuner Lite includes ads. Transposition, alternate note naming systems, manual note selection, historical temperaments, octave stretch tuning, selectable reference tones, and a metronome are available in A-Tuner (paid version).