Retro Tuner 4+

For guitars, pianos and more

Waxing Wave

    • 5.0 • 1 Rating
    • $2.99



Retro Tuner is a musical instrument tuner for the iPhone, iPad, and iPod Touch. It features a user interface in the style of an analog panel meter and Nixie tube note display, but below this retro surface are all-new digital signal processing algorithms that determine the pitch of your instrument quickly and accurately.

Retro Tuner was written by the owner of several crappy guitars and a 1920s player piano that is constantly going out of tune, with the idea that if it can tune those, it can tune anything.

Retro Tuner tunes in equal temperament and can handle the full 88-key piano range. The reference pitch defaults to A=440 Hz and can be adjusted via Settings either as a frequency in Hz or as a detune factor in cents.

What’s New

Version 1.5

This app has been updated by Apple to display the Apple Watch app icon.

Bug fixes

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Smeo47 ,

Best Tuner Apt Out There!!!

Thank you for this tuner! I just love it. There are no fancy "lessons" or skins to make it look like something else. This is just a plain and very well-designed tuner. I have been playing for over (oh crap, I'm old) let's just say I started as a baby and have played for 50 years. I have actual physical Fender tuners that cost about $50 when I bought them, but that seem to be affected by weather. Having more than a dozen guitars, I struggle to keep all in tune. Some do not get played with very often and need tuning when I decide to grab that particular one. Having tried other tuner aps, I have been disapponted with the tuning parts. This is a very refreshing design, it works like a champ, and I just tuned an older acoustic spanish guitar in the shortest time ever! The guitars actually sound wonderful, like all along none of them have really been in tune. WOW! I am blown away and will recommend this app to everyone I know who plays. Now I will have a tuner with me everywhere I go, because you never know when you will run into a guitar that needs playing. (and you don't want those hearing to yell, "Tune it or die!"). Thank you so much for the design and accuracy you built into this app. I am going to delete all the other apps I downloaded that disappointed me. This is the real deal.


Retro Tuner

Works great. Saved me a lot of time bringing a neglected harpsichord up to pitch. I know nothing about tuning keyboard instruments to the proper temperament but this app helped get the instrument close to playable condition in short order.

App Privacy

The developer, Waxing Wave, indicated that the app’s privacy practices may include handling of data as described below.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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