OttOrgan

Markus Sigg Music iPhoneiPadiPod touchMac

OttOrgan is a paid Music app for iPhone and iPad by Markus Sigg. Rated 5.0/5 from 3 ratings. Requires iOS 12.5.6. Updated August 11, 2026.

Rating: 5.0; 3 ratings
Price: 9 USD; on the App Store
Size: 340 MB; Age 4+
Updated: Aug 11; 2026 · v7.9

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Screenshots

About OttOrgan

OttOrgan lets you play the Ott-Orgel sample set of Christian Datzko on a MIDI keyboard and a MIDI pedal attached to your iOS or macOS device. The Ott organ is a house organ with five ranks at one manual and an attached pedal with a 16' subbass. If you would like to use the sample set with other software, you can get it at http://orgel.datzko.ch/main.EN.html. For more information, please consult the app support page http://polaron.de/OttOrgan/ , the Napo documentation at http://polaron.de/Napo/ and in particular the Napo user manual at http://polaron.de/Napo/manual . For hearing sound examples of the app, please visit the support page http://polaron.de/OttOrgan/ .

What’s new

Version 7.9 · Updated August 11, 2026

Upgraded from Napo 5.17.2 to Napo 5.18.1. - Bugfix in convolution reverb (delayed late reflections). - Pitch shifting range increased to ±200ç. - Loading saved settings is now be done by a short-tap. - Audiobus updated to version 3.0.15.1. Plus the changes of Napo 5.18 that you can read about in the Napo version history.

App privacy

The developer, Markus Sigg, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

App details

OttOrgan is a paid Music app for iPhone, iPad, iPod touch and Mac, developed by Markus Sigg. It is rated 5.0 out of 5 from 3 ratings on the App Store, requires iOS 12.5.6 or later, is 340 MB to download and is available in 2 languages. It was first released on July 14, 2012 and last updated on August 11, 2026.

Category: Music
Rating: 5.0 / 5 (3 ratings)
Price: 9 USD
Version: 7.9
Size: 340 MB
Requires: iOS 12.5.6 or later
Compatibility: iPhone, iPad, iPod touch, Mac
Languages: English, German
Age rating: 4+
Released: July 14, 2012
Last updated: August 11, 2026
Developer: Markus Sigg

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Alternatives to OttOrgan

Looking for apps like OttOrgan? Here are 6 similar apps on the App Store. The highest rated is SWAM Piccolo Trumpet (5.0/5).

OttOrgan vs. alternatives
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