A-Tuner

Been using this app for years now and it can't be beat. Can't say I've had any reason to try any other tuner. Been playing for 30 years, own several hardware tuners from clip ons to pedals, all reputable brand names (korg, Peterson, TC, etc) and I use this for all of my guitar setups. Such a well-designed and excellent-performing tool.

Apr 18, 2026

This is an excellent tuner. The display is clear, accurate and easy to read. I have used many tuners over my 50 years of playing and performing. I use it for tuning a wire strung harp. The adjustments of the "in tune" range to .5 cents that is available in the paid version are very useful. I also appreciate that the display changes color when a string is within the range. I will definitely recommend it to other musicians

Apr 15, 2023

Simple and accurate tuner. Pro version with no ads is only $2.49. That makes it even nicer.

Mar 21, 2023

It was A-Tuner however great this app is its not what I was looking for as I'm looking for a tuner that will tune down half step , Full Step and also with option of tuning a 12 string...

Nov 7, 2022

I am a practioner of sound healing. I use this to see what frequency or key my Tibetan Bowls are in, as well as checking the accuracy of certain sound healing tracks (for example, a YouTube track that claims to be 432hz can be played and this app will verify or falsify the video's Hz claim). Very useful and very accurate, thank you!

Apr 3, 2022