PianoMeter – Professional Piano Tuner (PRO) 3.2.1 Apk for Android

PianoMeter: The Ultimate Piano Tuning App

PianoMeter is a revolutionary piano tuning application designed to turn your Android device into a professional-quality electronic tuning aid.

Important Note

The free version of this app is primarily intended for evaluation purposes. It allows you to tune notes on the piano only between C3 and C5. To access the full range of tuning capabilities, you will need to purchase an upgrade through an in-app purchase.

What Makes PianoMeter Unique?

Unlike traditional chromatic tuning apps that rely on pre-calculated equal temperament, PianoMeter actively measures the tonal characteristics of each note. It automatically calculates the ideal “stretch” or offset from equal temperament, creating a custom tuning for your piano. This method provides the best compromise between intervals such as fifths, fourths, octaves, and twelfths, similar to how aural piano tuners perform fine-tuning.

Functionality and Pricing

PianoMeter offers three levels of functionality:

• Free (Evaluation) Version: Basic tuning functionality for the mid-range of the piano.


• Plus Version: Enhanced features for basic tuning.


• Professional Version: Advanced features tailored for professional piano tuners.

Extra functionalities are unlocked through one-time in-app purchases.

Free Version Features

• Tuning functionality for the mid-range of the piano only.


• Automatic note detection.


• Measure each note on the piano to compare its current tuning with the ideal tuning curve.


• Swipe in the graphing area to display a live frequency spectrum or the inharmonicity of measured notes.

Plus Version Features

Upgrading to Plus adds the following functionalities:

• Tuning functionality for the entire piano.


• Tune to frequency standards other than A=440.


• Tune to historical or custom temperaments.


• Calibrate the device to an external frequency source.

Professional Version Features

Upgrading to Professional unlocks all features of the Plus version, plus:

• Save and load tuning files, eliminating the need to re-measure each time a piano is tuned.


• Pitch raise mode that calculates overpull for an initial “rough” tuning for extremely flat pianos.


• Custom tuning styles: create a custom tuning curve by adjusting interval weighting and stretch.


• Access to all future features and enhancements.

Upgrade Costs

Upgrade	Cost
Free to Plus	Approximately US$25
Free to Pro	Approximately US$300
Plus to Pro	Approximately US$275

Note About Permissions

This app requires permission to access the microphone on your device and permission to read and write files.