AudioLayer satisfies the most sought after gap for contemporary music production on iOS devices. AudioLayer is a full featured open standard audio multi-sampler pushing the boundaries beyond what has been available even in the desktop music production worlds. And all this integrated in all relevant iOS production environments especially the emerging AUv3 AudioUnit standard.

- SSE - Streaming Sample Engine -
The ultra efficient Streaming Sample Engine SSE is capable of playing hundreds of voices of big multi-sampled instruments even in strictly resource limited applications like using multiple instances of AudioLayer in AudioUnit host environments. Innovative features like Sub Sample Looping for perfect loops even in the audible range extend the range of applications even further.

- Perfect iCloud integration* -
The consequent usage of the open file structure of the Files app makes organising even large sample libraries a breeze. Sample recordings and Instrument designs made with AudioLayer are seamlessly available across all your devices and desktop. Even more this opens up new forms of collaborations with musicians all around the world to share your creations and work together.

- Multi Scope Editing -
To support the creation of complex multi-sampled instruments AudioLayer allows you to use a hierarchical structure of Layers and Zones each with it’s own sound manipulation parameters. A unique element of AudioLayer is the possibility to decide for each Zone at which Scope level your editing apply: For the all Zones in the Instrument, for the Layer only or individually for this Zone only. This opens a whole new world of creative options for sound mangling. For sound manipulation you can use a full set of Filters, Envelopes and LFOs to shape the pitch, timbre and level of the sound of each Zone.
SIS - Seamless Instrument Switching
The unique architecture of the Streaming Sample Engine allows for instant loading of even complex instruments and makes this switching from one Instrument to the next without cutting off the sound! And this includes of course also different effect setting

- Easy Design Workflow -
The built in audio sample recorder let you create Instruments on the fly in seconds. The Music Effect AudioUnit / Audiobus effect plugin of AudioLayer let you record multi-samples semi automatically directly inside your preferred host and instantly create an Instrument with the help of several Auto mapping options available. This includes file name based mapping of key ranges and velocities and automatic pitch detection. For the creatives we’ve also integrated a special “Single Cycle Waveform” detector making the use of this special files a breeze.

*App works also without iCloud, but less convenient.


• Stand-alone App
• AUv3 AudioUnit Instrument and Music Effect
• Inter App Audio
• Audiobus 3 Input/Effect with state saving support.
• Audio recorder with share function.
• Ableton Link compatible.

What's New

Version 1.0.4

- iOS12 bug fixes

Ratings and Reviews

3.8 out of 5
16 Ratings
16 Ratings
mfrasconi ,


Finally an actual iPad sampler whose functions are not buried beneath trendy bells and whistles. I had no problem air-dropping in samples from my laptop. So easy! I was able to quickly build a multisample instrument with over 20 samples, each with their own unique settings. So far I've worked mainly on the "zone" level but am looking forward to exploring the other editing levels. I am using it solely as a stand alone app so I can't address any plugin issues. I also don't quite understand the "scope" situation; specifically why the default is having it off for each zone. I hope the future manual will explain the whole "scope" thing more thoroughly.

On the top of my wish list is deeper real time midi control over editing functions. Specifically I'd love to be able to control sample start and loop points via midi cc. That would be excellent! But over all, Virsyn continues to amaze.

Tyler Allen 86 ,

Needs better file management.

1st) Thank You for Audio Layer!

I'm having 2 issues.

1.) When using StepPolyArp Unit as a sequencer in AUM with Audio Layer, the notes are off by an octave. StepPloy is playing C#2 and C#3, but in Audio Layer they register as C#3 & C#4

2.) Importing is a headache. Currently I itunes import a folder to audio share. Then from within audio share I export that folder from audio share, back to audio share.
(because the iTunes transfer folder in audio share does not show up in Audio Layer)
Then Audio Layer will see that folder. Then I can create a folder inside Audio Layer of the same name, and import the samples individually. This is extremely time consuming.

Better iCloud Support.
I want to use local storage for the samples, but have my instruments config saved via iCloud. I plan to have 30-40gb of samples in Audio Layer. I do have iCloud 50gb, but I'd like not use it all on samples, but still have the hours used in instrument creation backed up.

SFZ Support ?
I'd love to just be able to have a folder named "Instrument Name" then inside that folder have a loadable SFZ file as well as another folder called "Samples"

Eriptron ,

I like what I see (& hear)!

Update: It needs a ribbon controller option❣️
⭐️ ⭐️ ⭐️
Only a couple of minor issues so far. Those I sent to support.
1) Context sensitive help for the Para EQ displays the Flanger help instead. 2) When I touch their icon in the upper left, the IAA transport bar displays through or on top of the info screen.

At first I was disappointed that there is only (so far) context sensitive help but unlike almost all context sensitive help I’ve seen to date, it actually does explain things fairly well. A detailed user manual would still be welcomed as there is a lot here to ‘play’ with here!

The UI is very easy to use. The ease of instrument creation using virtually any sample or simple mic recording is truly phenomenal❣️

More later after I’ve spent a few hours playing with AudioLayer.

PS - App could use note hold/key latch feature. Also, keyboard octave sector needs to be place-able anywhere. Not only by increments of displayed keyboard width.


VirSyn Software Synthesizer
165.2 MB
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© VirSyn Software Synthesizer


  • Family Sharing

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

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