iPad Screenshots


Packed with vintage analog character. Everything on one screen makes sound design quick and easy including fine tuning of each note in the scale for endless microtuning possibilities.

PolySynth filter section sports a ms20 style resonant highpass and 24db/oct resonant lowpass.

PolySynth has Audiobus 3 support, IAA (Inter-App Audio) and MIDI-In so you can connect, play and record with other many apps.

— Microtonal tuning
— 3 note polyphony
— MIDI note in
— 24db/Oct MS20 Lowpass filter and resonant highpass
— Arpeggiator
— AudioBus
— Inter App Audio
— 3x oscillators
— 2x LFOs
— 2x ADSR envelopes
— Delay
— 3 note polyphony

What’s New

Version 1.1.1

— Many bug fixes and improvements
— New Effects

Ratings and Reviews

4.7 out of 5
7 Ratings

7 Ratings

Sauron+on+on ,


Opened it in standalone and was confused: is my audio interface acting up? Why am I only getting sound from the left channel? Closed it and loaded it into AUM, that fixed it. (“Oh, so it’s like a vintage synth that only has a mono output and needs to go into a mixer. Gotcha.”)

Output is kinda low and I can’t find a proper volume knob, only one labeled “Drive” and turning it up all the way was still low. (“good thing Amazing Noises has made their Limiter plug-in AUv3... There. That’s better.”)

Arpeggiator... no ability to sync to Host tempo? or MIDI clock input? No Ableton Link? (“Nope! Just like a vintage synth!”)

No latch? (“Quit complaining. AUM has a hold button!”)

Only 11 presets? (“Remember the Juno 6? OK, shhhh!”)

Suddenly it hit me. This is GENUINELY modeled on analog synthesizers. Not a clone of anything specific, but it’s own beast. This thing can make some sounds that those preset box synths won’t. If you want stock sounds, reach into your preset box synth. If you want to explore sculpting your own experimental sounds, and all in one window, well... this is a beautiful-looking window to do that in.

The kicker: $4.99 is less than the price of a 6ft 1/4” cable you’d need in order to plug in a vintage synth.

richardbates1 ,

Great synth but....

This a great synth. Great sound great look. Great functionality.....but on my new iPad Pro it only worked for awhile then the audio shuts off and remains off until either an iPad re-set or over time the main opening widow comes the the audio starts again for a little while. You guys need to up date for the new iPad Pro? And please get rid of the black border space around the app. The new iPad lets the image size of the synth to be larger. SO I give it 5 stars in hopes you will fix this audio bug?

TadbitOmusiC ,


Great analog sound

App Privacy

The developer, DesignByPaul, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

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Paul Betowski
28 MB

Requires iOS 9.3 or later. Compatible with iPad.



Age Rating


  • Family Sharing

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

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