# Organ Tuner

> Music

Canonical page: [https://chrome-stats.com/d/id393104842](https://chrome-stats.com/d/id393104842)

## Overview

- **ID:** `id393104842`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Real-Time Specialties
- **Category:** Music
- **Rating:** 4.80 / 5 (4 ratings)
- **Version:** 3.3
- **Last updated:** 2026-07-22
- **First published:** 2010-10-30
- **Size:** 4.85 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/organ-tuner/id393104842)
- **Website:** [https://www.tunelab-world.com/organtuner](https://www.tunelab-world.com/organtuner)
- **Privacy policy:** [https://www.tunelab-world.com/privacyios](https://www.tunelab-world.com/privacyios)

## Description

This app is for professional pipe organ builders and technicians.  It addresses the special tuning needs of building, tuning and maintaining pipe organs.

Notable features:

* Covers the note range of C0 (32' pipe) to C9 (1/16' pipe)
* available MIDI control of keys with Bluetooth as a key holder
* Handles mutation ranks (Quint, etc.) and Celeste ranks
* Built-in compensation to track and compensate for temperature changes during tuning
* Calculates pipe cutoff for trimming new pipes to length
* Optional connection to Bluetooth temperature sensor for compensation of pitch
* Precision phase display for very precise tuning plus a spectrum display
* Accurate to 0.02 cent
* Provides many historical (unequal) temperaments for period music
    (See our support web page for a complete list.)
* Switches notes automatically up to 4 notes away

Organ Tuner has two different displays that are visible at once.  One is the strobe-like Phase Display.  This is a band where black squares move left or right.  You tune to make the squares stop moving.  The other is a Spectrum Display.  This is a graph that shows a peak for every pitch present in the sound.  You tune to make a peak in the graph move to a central red line.  Having both the Phase Display and the Spectrum Display visible at once gives you a more complete picture of the tuning than any single spinner-type or needle-type display.

## Rankings

- #497,464 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id393104842)