Pro Guitar Tuner

A tuner on your phone

Pro Guitar Tuner listens to a string’s pitch through your phone’s microphone and shows whether the note is in tune. It is for guitarists who want to check tuning without a separate electronic tuner, and may also suit people playing instruments such as bass, ukulele or mandolin. The app is listed in Entertainment and is made by ProGuitar.

How you might use it

The tuner is chromatic, so it can identify notes beyond the standard guitar strings. The listing also describes a library of different tunings and recorded instrument samples for people who prefer to tune by ear. These options may be useful when you are exploring alternate tunings or tuning an instrument other than a standard guitar. They do not replace the need to listen and check that the result suits the music you want to play.

Before you choose

Because pitch detection depends on sound, consider where and how you would use the app. A noisy room or other nearby instruments could make it harder to pick out the string you are tuning. The app needs microphone access for sound-based tuning; decide whether that is a permission you are comfortable granting. If you only need to tune one instrument occasionally, a physical tuner or another method may already meet that need.

Who is behind it, and how widely is it used?

The developer is identified as ProGuitar. The app has a 4.24 rating from about 145,000 reviews and more than 10 million installs. Those figures suggest many people have tried it, but they cannot tell you whether it will work well in your room, with your instrument, or in the way you prefer to tune. Check the permissions and available choices before deciding whether it belongs on your phone.