Organ Tuner for
Designed for organ builders and technicians, our iPhone/iPod/iPad app
provides the very best in pipe organ tuning.
Find the app in the App Store by clicking here:
- Here is what the main tuning page looks like on the iPhone. The
bar with the two black squares is called the Phase Display. The
squares move left for flat and right for sharp, similar to a strobe
tuner. You tune the pipe so that the pattern comes to a
stop. This display is for fine-tuning. It is the most accurate
tuning indicator available.
Below the current note display is a graph called the Spectrum
Display. Derived from a high-resolution Fourier Transform, this
display gives additional information about the distribution of sound
energy across the frequency spectrum. If there are several
pitches sounding at once, this graph will show a peak for each pitch.
- Version 2.7:
- Modified handling of interruptions from phone calls to improve the
restarting of Organ Tuner after the call. Corrected the reading of the
Moat S2 temperature sensor. Added support for two more Govee
temperature sensors (H5179 and H5174).
- Version 2.6:
- Support for three new Bluetooth temperature senors, shown below.
The mutation rank/partial selection has been streamlined. Adaptations
are made for iOS 12 and above. Several landscape layout issues have
- Version 2.4:
- Adds a "pipe cutoff" calculation function to aid organ builders in
cutting brand new pipes that have never been tuned. This version also
fixes a bug in processing temperature readings from specific
- Version 2.3:
- Fixes a "cancel temperament" bug that appeared with iOS 9.
- Version 2.2:
- Fixes a audio system compatibility problem with iOS 9.
- Version 2.1:
- Extends the provisions for receiving Bluetooth temperature readings
for temperature compensation to include several more brands of
Organ Tuner supports the following devices:
"Tempo Pebble" and "Tempo Disc" sensors from Blue Maestro
"myBlue-T" temperature sensors by WeatherHawk
(discontinued by the manufacturer, but we still support it if you have
"Moat S2" temperature and humidity sensor from Moat
"Govee H5074" thermometer from Amazon
"Govee H5174 and H5179" directly from Govee.
(H5174 is preferred because it is Bluetooth only.)
"Inkbird IBS-TH1" temperature sensor from Inkbird
The best way to learn all about the Organ Tuner app features to
download the manual right here:
Organ Tuner User's
More historical temperaments (in
addition to those that come pre-installed with the app) can be found here.
If you have any questions about the Organ Tuner app, please e-mail us