WoodSynth is a synthesizer with 4 independent layers. Each layer is in fact a synthesizer on its own.
Each layer has 3 VCO’s plus a samples based source, coming from a file or from recording the audio track.
Up to 16 voices can be set per layer.
Layers can be used in parallel, assigned to a region of the keyboard or used in a sequential mode where the first note(s) on are played by layer 1 and the next note(s) by layer 2 and so on.
This last mode allows to have a different sound per note played (and independent from a keyboard region).
WoodSynth has a polyphonic pitch-bending touch bar which also displays notes received from a keyboard.
Each layer has its own filter and envelope with ADSR per voice, a pitch shifting envelope per VCO, a delay, a basic reverb, a modulator LFO per VCO, 2 general LFO’s and a 16 steps sequencer.
Key tracking can be applied on the ADSR attack and release, on the filter cutoff and on the VCO modulation.

The app can be used stand-alone (device audio input and output) or as a plugin in a DAW.

- IOS plugin type : AUv3 and stand-alone app.

- Has 4 independent synthesizers, each with up to 16 voices.

- Supports MPE.

- Has a polyphonic touch bar with polyphonic pitch bending.

- Velocity, channel pressure, (polyphonic) aftertouch, CC74 can be used to modulate several synth parameters.

- VCO’s have the usual waveforms (sine, saw, square, triangle, pulse and noise) and can be modulated in various ways (FM, AM, Pulse Width, Slew rate)

- Samples can be recorded from the audio input/track or loaded from file (sample files should be in the WoodSynth iCloud folder)

- Each voice has a 4-pole Moog Lowpass filter with resonance and ADSR envelope.

- An offset can be set in the Filter cutoff for the R channel to create a stereo effect.

- Each voice has a pitch shifting ADSR envelope which can be independently enabled for each VCO.

- Has Key tracking for VCO pan, Filter cutoff, ADSR Envelope Attack and Release.

- Each layer has a delay unit (which can be separately panned) and a basic reverb.

- Each layer has a 16 steps sequencer which can run on multiple voices (poly mode).

- Each layer can set the midi channel and range of receiving midi notes (which allows for up to 4 split keyboard regions).

- Layers can be set in sequential mode : first note(s) played on layer1, next note(s) on layer2, etc.
- Layers have an additional high-pass filter saturation and crush control.

- Synth audio and delay can be panned independently.

- Supports Ableton Link to sync tempo and start-stop.

- Has 4 User Control rotaries which can be freely assigned.

- The User Controls can be controlled by a midi CC which can be set or learned.

- Presets can be stored in iCloud Drive (makes them available on all your devices).

What’s New

Version 1.4

- Added multi out busses in AUv3 (bus 1 -> mix , bus 2 -> layer 1 , …, bus 5 -> layer 4).
- Added layer Lock buttons : allows to keep sequencer, arpeggiator or chord running without changing when playing notes in another layer.
Also the Glide and Legato function are locked, the keyboard mods (pressure, etc) are not locked.
- Added midi send to DAW (was only to external) + on/off controls for sending to external and/or DAW in Advanced Settings.
- Added Sequencer note-on/off midi send (set midi chan in Advanced Settings).
- Browsing to a preset or sample file outside the WoodSynth folder will now copy the file into the WoodSynth folder.
- “add preset” of a (modified) factory preset will drop the “factory/“ so that the preset is not saved in the factory folder.
- When iCloud is NOT used, the standalone app will copy the presets and sample files into a shared (App Group) folder to make them available for the AUv3 plugins (copy is done only when starting up the standalone app)

Ratings and Reviews

4.6 out of 5
7 Ratings

7 Ratings

Mfluxxx ,

Deep but easy to navigate

Great sound being able to combine all the available oscillators and layers together. The app can get deep but all the editing is 1 click away with a few minor exceptions being 2 clicks away. The sequencer is pretty straight forward but makes getting ideas out very quick. It can get fairly cpu intensive if you start piling up the layers but the quality of the patches and sounds I’ve got out of it so far make it worth it. As a note, it’s pretty efficient if you are creating more simple patches. Awesome synth.



Watched Doug from infamous sound test room had to get it sounds lovely and appears to be very light on cpu. I will update as I get more use but I know Maple Syrup Studio is trustworthy for updates and bug fixes. I own a few of their effects apps and the level of detail that goes into these are superb.

Eriptron ,

Somewhat Obtuse To Use

Lots of features but not so sure that they work well together. I find the UI a little obtuse to use.

I do like the buttons at the bottom to open the various modules.

Factory preset button has taken, on the average, about 6 touches before it works, and just now, 16 touches to open it (to pull of the factory preset list). Missing manual note hold ability, hamstringing Ambient music makers.

Not very impressed so far but it does have a decent manual.

I don't really care for the synth's overall sound so far. Sounds like a toy to make Mario Brother's music with. I'm starting to regret this purchase. I should have looked for some iOS reviewer videos first.

I'll keep trying but my enthusiasm has already died. That's not good.

App Privacy

The developer, Woodman's Immaculate Maple Syrup Studio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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

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