Co-designed with Berlin-based electronic musician Hainbach, Gauss brings the oldschool tape-looping art form to mobile devices. This creative field looper works both standalone and as an Audio Unit effect plugin and puts the possibilities of using looped tapes in your hands. Without the need for scissors.

Like real tape loops Gauss takes you off the grid of your DAW: you can adjust tape speed and direction, even during recording. The flow of your loops will drift organically as the tape follows its own cyclical timeline. 

Use overdub, or even multiple instances of the Audio Unit plugin, to create multi-layered ever changing sonic palettes.

We want this app to be a celebration of digital audio technology, so when audio quality is degraded it will do so in a pleasingly crunchy digital way. For example, recording on low tape speeds will give you longer recording time, but at the cost (or pleasure) of a distinctively lower recording quality. So Gauss mimics the behaviour - not the sound - of magnetic tape.

Set the length of the tape, record and overdub your audio, play around with tape speeds; Gauss captures the essence of two ends of tape stuck together in all its unsynchronised, free-running glory. There's even a unique built-in 4-step polyrhythmic sequencer for sequencing tape-speed changes.

- designed as a standalone field recorder and an Audio Unit effect plugin (AUv3) in one package
- universal app: plugin and standalone work on all iDevices, iOS11 and higher
- variable tape speed; seamlessly change direction and speed during playback or recording
- 4-step sequencer lets you trigger (polyrhythmic) tape-speed changes in sync with your host tempo
- variable inertia for the tape drive motors (from instant to very slow speed changes)
- built-in multi-mode filter with LFO modulation
- delay effect with optional host-sync mode
- “1989” mode uses a special 8 bit/11KHz tape head for a last-century vintage digital sound
- 45 seconds maximum loop size at 1x speed, proportionally longer at lower speeds (.e.g 90 seconds at half speed, etc.)
- overdub at any speed or tape direction
- plugin supports global cross-host preset handling (requires iOS13+, compatible AUv3 host)

Find the user manual at

Ratings and Reviews

4.6 out of 5
49 Ratings

49 Ratings

polarpaul ,

Funky Looper

The app is perfect for all of your off kilter looping needs. You can do all sorts of transformations of your source audio from subtle to extreme. Nice straight forward GUI with all of the controls at your fingertips. Shape the sound frequencies and rhythms. You can record sessions as presets in the AU.

Resampling the output of your Gauss sessions is great when you can have a source instance of Gauss followed by an effects chain and another instance of Gauss where you record the output. After creating the recording, save it as a preset and change the audio source Gauss to the preset you just saved and reset the instance of Gauss for recording again (I have a couple of presets for my fav recording setups). Experiment with iterations of this to get your creative juices flowing.

The developer is in the process of exposing the transport AU parameters for even more MIDI based fun. I will be using this app a lot.

Enrique Raphaël Page Pérez ,

Complete bomb

This is an amazing plugin Bram, cheers to you and Hainbach.

That being said, and although I understand the original idea of the plug-in and how it was conceived, I do certainly think there’s room for the following three things:

1 - automation of the record button. At least so we can use physical controllers to control it. Being able to quantize it to the host grid would be ideal however.

2 - In parallel, it follows that it would be great to have an option to start the playback of Gauss on host’s play message.

3 - Instead of only allowing us to choose loop sizes in seconds, it would be great if we could specify a number of bars instead and let the tempo of the host determine how many seconds that is.

Both of these things could be entirely optional, yet they would allow Gauss to be used as a traditional looper. Given the lack of good loopers on auv3, I think this would be massive, so hopefully you can bring it in the future.

Cheers for the wonderful app, I certainly am going to be using it regardless of whether the requests I have are considered or not.

Update: haha thanks for the little tip there Bram, these are fantastic news! Cheers!

Developer Response ,

Thanks for the feedback! #1 is coming and #3 is already there (double-tap the loop length knob!)

Nogreatcrime ,

In the running with Drambo for App of the Year

Brams apps are at the top of the tops for their lightweight stability, excellent sound quality and full of useful features. This collab with Hainbach is no different. I can certainly feel a little of each of their personalities in this unit. Inspirational, interesting, clever and infinitely useful. I dont buy too many music apps anymore but along with Drambo this will be one of my apps of the year. Exceptional work Bram and Hainbach. A must have.


Bram Bos
33.1 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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