LayR is a massively polyphonic, multi-timbral synthesizer for iPad and iPhone, optimized for modern 64 bit devices delivering up to 256 voices of rich, multi-layered and textured sounds.

LayR's primary sounds are called Performances: A Performance is a set of Instruments where each instrument is a set of Layers and each Layer is a complete synthesizer. A performance can consist of over 100 instruments each with it’s own MIDI channel and crossfading keyboard span. Voices are assigned to each layer in each instrument until the audio engine runs out of available voices. This means that with normal playing technique it is possible to create extremely complex texture on each note or even to have a single insane monophonic instrument equivalent to 100 synths all playing at once!

Every Layer has a dual oscillator which can morph with modulation between two shapes and phase states, two rich and warm state variable filters and a mixer to blend the oscillator with filters in any serial/parallel combination. For modulation (Frequency, Amplitude and Phase) there are two aux oscillators ranging from DC to audio frequency switchable to optionally follow keyboard pitch and restart phase when a note is started. 2 loopable ADSR envelopes ranging from fractions of a millisecond to 100 seconds, a volume level ADSR and a random level generator with a smoothing filter. With stereo delay, reverb and EQ on the output section LayR excels at not only emulating normal analog synth sounds but also at creating ambient textures with extremely long evolution cycles.

Focused at keyboard players looking for a mobile synth that can be reliably used live on stage it is equally at home in the studio. LayR is provided with an extensive selection of usable instrument and performance presets which can be loaded using MIDI bank select and program change messages in the same manner as hardware synths. There is also an 8 channel arpeggiator with a 16 step event sequencer for creating exciting polyrhythmic patterns. Full IAA and Audiobus compatibility means LayR can be used with hosts and other music apps on iOS.

- Optimised 32 bit Audio Engine.
- Up to 128 Voices ( 256 on iPad Pro ).
- Multi-Timbral with 8 individual stereo instrument outputs + full mix output.
- Multi Channel Arpeggiator with 16 step event sequencer.
- Stereo Delay, Reverb and EQ on output section.
- Ranged MIDI control for all parameters.
- AudioBus and Inter-App Audio compatible.
- Performance and Program preset import & export via iTunes.
- Performance and Program preset sharing via iCloud Drive.
- Built-in Help

LayR is tested as thoroughly as possible and we hope there are no bugs left! If you do find one, rather than writing a negative review because of it, please report it to us either on our forum or by contacting support from our website. We hate bugs too and we're always ready to stamp them out quickly!

What's New

Version 1.1.0

Fixes unresponsive touch at bottom of screen on iOS 11.

Ratings and Reviews

4.8 out of 5

26 Ratings

26 Ratings

Endless Exploration!


This synth has rich sounds that will blow you away! Being able to build with layers opens up a huge number of opportunities that will allow you to create some incredibly intricate sounds.

Highly recommended!

Creativity Inspiring


Totally awesome in its depth and ability to create very complex, rich sounds in an interface that is remarkably intuitive for the power that it has. Plenty of great presets to get you started, too. Highly recommended!



When I first started out on modular synthesizers, I could never have foreseen something like this. It’s a universe of possibilities, layers, combinations. Very highly recommended and a bargain at many times the price. Well done.


Living Memory Software
22.1 MB
Requires iOS 9.0 or later. Compatible with iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPad Air, iPad Air Wi-Fi + Cellular, iPad mini 2, iPad mini 2 Wi-Fi + Cellular, iPad Air 2, iPad Air 2 Wi-Fi + Cellular, iPad mini 3, iPad mini 3 Wi-Fi + Cellular, iPad mini 4, iPad mini 4 Wi-Fi + Cellular, 12.9-inch iPad Pro, 12.9-inch iPad Pro Wi-Fi + Cellular, 9.7-inch iPad Pro, 9.7-inch iPad Pro Wi-Fi + Cellular, iPad (5th generation), iPad Wi-Fi + Cellular (5th generation), 12.9-inch iPad Pro (2nd generation), 12.9-inch iPad Pro Wi‑Fi + Cellular (2nd generation), 10.5-inch iPad Pro, 10.5-inch iPad Pro Wi‑Fi + Cellular, and iPod touch (6th generation).
Age Rating
Rated 4+
© 2016 Living Memory Software


  • Family Sharing

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

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