# MarcMoerd

> MIDI pipe organ sample set for iOS and macOS. (iPhone/iPad app by Markus Sigg.)

- Source: https://appshunter.io/ios/app/marcmoerd/id1027787952 (this page in markdown: same URL + `.md`)
- Developer: [Markus Sigg](https://appshunter.io/developer/458880634)
- Category: Music
- Price: Free
- Rating: 4.30/5 from 6 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.5.6 · 1.8 GB
- Languages: American English, German (Germany)
- Released: 2015-08-27
- Data updated: 2026-08-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/marcmoerd/id1027787952/reviews.md

## What is MarcMoerd?

This app makes the Marcussen/Moerdijk pipe organ sample set available for playing with MIDI keyboards and a MIDI pedal connected to your iOS or macOS device. The sample set of the organ of the former St. Stefanuskerk in Moerdijk, Netherlands, is used with the kind permission of Ariaan Hoogendijk.

For more information about the app and the underlying Napo framework, please visit the support page http://polaron.de/MarcMoerd/ , the Napo documentation at http://polaron.de/Napo/ and in particular the user manual at http://polaron.de/Napo/manual .

*** For your attention ***

This app is a huge download of nearly 2 GB. Make sure there is enough free SSD space on your device.

## Key features

- Pipe organ sample set
- MIDI keyboard support
- MIDI pedal support
- iOS and macOS compatibility
- Large sample library

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/marcmoerd/id1027787952/reviews.md

### 5/5 — One the Very Best

*2026-03-27*

Love this plug and play pipe organ.  I play it all the time for practicing.  It also layers with other organs that lack full functionality for the most wonderful pipe organ experience.  I tried them all, this is one I always return to.  No glitches and plays nice with others. Just above and beyond. Pure genius of simplicity in producing most complex king of musical instruments right at your finger tips, plug and play. Kudos!!!!!!

### 2/5 — Can’t Use as AuV3 Instrument

*2026-01-05*

Not being able to use this as an AuV3 instrument kills this.  Otherwise it would be amazing.  But not having it as a plugin to my Cubasis DAW on IPad makes this app not be able to be utilized like it should be.

**Developer response:** The purpose of this (free!) app is to serve as a replacement for MIDI pipe organ expanders that were common until recently and cost thousands of $. It is intended as a tool for musicians for practicing to play the pipe organ. You downvote it because it does not fit your personal use case? Honestly? Just take another app that does what you need.

### 5/5 — Stunning

*2023-10-06, version 2.5*

I have now purchased three of Markus Sigg’s organ apps. This is in my opinion the best. It’s a huge organ with a wide variety of sounds. Really beautiful. The controls allow you to adjust the acoustic to suit your venue, and the app works with a sustain pedal - handy for a pianist like me. Love it! This guy’s work never ceases to impress me.

### 5/5 — Excellent pipe organ sound

*2022-08-18*

Great app to simulate a real pipe organ. Compact enough to run comfortably on most iPads, iPhones, and Macs.

### 5/5 — Great virtual pipe organ

*2021-12-03*

Great little virtual pipe organ similar to the Pitea pipe organ, and great accompaniment to the Pitea when played simultaneously. 

Text labels on the pipe stops would be better if the same larger and bolder font as the Pitea were used for Mac version, but especially iPad and iPhone versions. 

Would also love to see the NAPO framework allow 12 semitones of adjustment up and down, and specific selection of MIDI-in and MIDI-out.

### 5/5 — Beautiful sampling

*2020-09-04, version 2.0*

Still getting used to it but really like ,

## Frequently asked questions about MarcMoerd

### What is MarcMoerd?

MarcMoerd is a free application that makes the Marcussen/Moerdijk pipe organ sample set available for playing with MIDI keyboards and pedals on iOS and macOS devices. It utilizes the Napo framework for its functionality.

### Does MarcMoerd have ads?

No, MarcMoerd does not contain advertisements. It is a free application with no in-app purchases or ads.

### What devices does MarcMoerd support?

MarcMoerd is supported on Mac, iPhone, iPad, and iPod devices. It is designed for Apple's iOS and macOS operating systems.

### How large is the MarcMoerd download?

MarcMoerd is a large download, approximately 2 GB. Users should ensure they have sufficient free SSD space on their device before installation.

### What is the user rating for MarcMoerd?

MarcMoerd has a high user rating of 4.7 stars, based on 3 ratings. This indicates a generally positive user experience.

### When was MarcMoerd last updated?

The latest version of MarcMoerd, 2.5, was last updated on June 20, 2023. This suggests ongoing support and potential for future improvements.

### Is MarcMoerd suitable for children?

MarcMoerd has an age rating of 4+, making it appropriate for a wide range of users. The content is not specific to mature themes.

### Where can I find more information about MarcMoerd?

More information about MarcMoerd, including the Napo framework and a user manual, can be found on the developer's support page at http://polaron.de/MarcMoerd/.

## Version history (last 5 releases)

### 2.6 — 2026-08-15

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.

### 2.5 — 2023-06-20

Upgraded to Napo 5.17.2. Fixes dysfunctional windchest volume controls and tremulants as well as breakdowns of the app when the user tries to configure the behaviour of MIDI controllers 64 and 66.

### 2.4 — 2023-05-16

Upgraded from Napo 5.13 to Napo 5.17, which brings temperaments functionality and other changes as detailed in https://polaron.de/Napo/history/index.html#5.17 .

Furthermore, the audible loop point in Rorflojte 4' c#' is fixed.

### 2.3 — 2022-02-05

Upgraded to Napo 5.13.

- The sustain function of the screen keyboards can be turned off.
- Now supporting all currently known Launchpad models.
- Dry/wet control for the convolution reverb.
- Redesigned reverb control: AU Reverb, Convolution Reverb and the rendering of sample releases can now be controlled independently. You can play the sample releases and still add artificial reverb.
- Included metronome (long-tap the Console view icon).
- Optional coloured borders around the stop buttons. This makes the assignment of the stops to the manuals more apparent (long-tap the Console view icon).
- Fixes problems with iOS 15 prewarming.

### 2.2 — 2021-08-29

Upgraded to Napo 5.4. Main changes:

- Support for recording in 32 bit float WAV format.
- New recorder configuration editor (long-tap the Start Rec. button).
- Auto-sustain for screen keyboards: When you tap a key only shortly, it will be sustained. When you tap for longer than 0.1 seconds, it will be released when the tap ends.
- Screen keyboards can send MIDI messages.
- Shared impulse responses. The IRs are shared by all updated Napo apps. Use StrandOrgan to install the factory IRs. You can use the Thafknar app to manage the IRs.
- Improved Launchpad handling.
- Support for Launchpad X.
- Audiobus updated to v3.0.15.

## Apps similar to MarcMoerd

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Real Piano - Electric Keyboard](https://appshunter.io/ios/app/real-piano-electric-keyboard/id6446647820) | 1.0 (1) | Free | Music |
| [OUT & PROUD LIVE](https://appshunter.io/ios/app/out-and-proud-live/id1562328760) | 5.0 (8) | Free | Music |
| [Radio 105 Indie](https://appshunter.io/ios/app/radio-105-indie/id1559928660) | — | Free | Music |
| [MusicPutty - Vocal Tune](https://appshunter.io/ios/app/musicputty-vocal-tune/id6444390100) | 4.4 (125) | Free | Music |
| [Been Getting Fetty Radio](https://appshunter.io/ios/app/been-getting-fetty-radio/id6450182020) | 5.0 (4) | Free | Music |
| [Silo - Granulator and Reverb](https://appshunter.io/ios/app/silo-granulator-and-reverb/id6444164740) | 4.8 (32) | $9.99 | Music |

## More apps by Markus Sigg

- [EagleView - EagleData Viewer](https://appshunter.io/ios/app/eagleview-eagledata-viewer/id458880631)
- [StrandOrgan](https://appshunter.io/ios/app/strandorgan/id488756266)
- [MenzelOrgan](https://appshunter.io/ios/app/menzelorgan/id519045788)
- [OttOrgan](https://appshunter.io/ios/app/ottorgan/id519638462)
- [PiteaMini](https://appshunter.io/ios/app/piteamini/id545235579)
- [Jeux d'orgues](https://appshunter.io/ios/app/jeux-dorgues/id557697492)

All apps by Markus Sigg: https://appshunter.io/developer/458880634

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*