Envelope is a high class reverb audio unit for use as a standalone app, using Inter App Audio or as an Audio Unit in AUv3 hosts like Garageband, Cubasis or AuriaPro. Its true stereo reverberation algorithm creates ultra-realistic acoustic spaces. Eight basic room models are contained in this unit, all of which can be tweaked in size, predelay, depth, low- and high frequency content as well as stereo width. A dry-wet-control is also included, plus a carefully designed set of presets to get you started.
Envelope has already found its way into many recording studios around the world as a desktop plugin, and is now the first effect by the renowned plugin manufactory DDMF to be released for the iOS platform.

What's New

Version 1.0.6

- added Inter-App-Audio support
- stability improvements and build against latest iOS 11.3 SDK

Ratings and Reviews

4.6 out of 5

8 Ratings

8 Ratings



An unbelievably good enveloper. The presets are as good as you’ll get on iOS 11. I have the plugin version of this too for Logic Pro X, and it’s equally as good. One small request would be to add an iPhone X update. A “Must Own” app!

Fantastic Quality Reverb


Works in Auria for me...absolutely incredible reverb and gorgeous to look at! High Quality plugin app but does require a lot of CPU. Would be perfect with iPad Pro.

one of the best iOs reverbs available


Sounds amazing. It has a lovely transparentness that fits in a mix exactly as it should. There are lots of reverbs to choose from these days but this one is top of it's class in pure sound quality and processing efficiency. I've been using it in multiple instances as an AU effect send in Cubasis and it sounds and works wonderfully. I highly recommend it.


Christian Siedschlag
59 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Christian Siedschlag (DDMF)


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