Much of the software representing itself as piano tuning software is chromatic tuning software. Chromatic software is not suitable for tuning pianos.

In order to tune a piano, one note, usually A4, is tuned to a reference pitch. Then, the rest of the piano is put into harmony with that note.  This is done by matching partials

Chromatic tuners do not match partials.  They simply generate mathematically correct half-steps.  This is insufficient because pianos do not generate mathematically perfect partials. Pianos tuning is based on matching partials… mathematically imperfect partials.

Below is a list of tuning software and devices that consider partials in their calculations:


Verituner (software) Available for Windows and IPhone.

Reyburn Cybertuner (RCT) (software) iPhone, iPod touch, iPad, 

Sanderson Accutuner (SAT) (hardware) A tuning device

TuneLab (software) Android, iPhone, iPad Touch, iPad, Windows, 

Dirk’s Piano Tuner (software) Windows, iMac, MacPro, Mac mini, Macbook

Entropy Piano Tuner (EPT) (software) GPL-3 license, Free and Open Source Software,  Apple iOS, Android, Windows, Apple Mac OSX,  GNU/Linux, source code

UltraTune (software) Appears to be abandoned

Tunic OnlyPure Piano Tuning Software  (software) based on octave + fifth tuning

instrument-tuner.com  Freeware for windows.  May have some application towards piano tuning.  Can measure partials.  

PianoLab   Piano tuning software from Russia.  Free. Released under GPL.  Windows and Android.  Not much documentation in English.

IC Piano Tuner  $49.90.  Advertises that you can do “stretch tunings.” morethanpianos has no experience with this software and has received no feedback.  

Easy Piano Tuner  Google play app. Free and $20 versions.  I’ve just been informed that there is now a $100 professional version.

Piano Tuner PT1   $499.99 Not much information on this so far.  For Mac and Ipad, Ipod, Iphone.

Piano Tuner 1.9  For Mac OS Shareware $49, free to try.  Appears to be similar to the old Strobe tuners.  You design your own stretch table.

Professional Piano Tuning Application PT-1A by Yamaha Corporation.  From the webpage: “Computer related functions* Custom Tuning Curve Settings Graph drawing.”  $699.99  More information needed on this.

TLA – Germany.  Not much info on how TLA works.  May or may not use measured partials for calculations.  Purchase TLA.

Tune!It – Chromatic tuning. “harmonic analysis to view partials”.  Unsure of suitability for tuning pianos.  

Pitchfork – Free.  “The Stretch Presets buttons choose a stretch tuning template for most common piano types.
Choose the model that best describes your piano.” “The Stretch Apply dial lets you adjust the strength of your chosen stretch template, in percent.  100% is generally best.”  Appears to allow user to select from pre-defined stretch settings.


NOTE:  No warranty or promise of any kind is made by morethanpianos, it’s owner, or hosting company regarding the software listed here.  The only relationship is between the buyer and seller of the product.  

If you discover other piano tuning hardware or software, please email your information to owner@morethanpianos.com so it can be added to this list.  If you discover any errors, please contact owner@morethanpianos.com.  Thank you.

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