MURMUR
PRICING

Pick a plan

Try it free, subscribe for everything, or buy an instrument and keep it.

FREE TRIAL

$0/month

Two engines and the core effects. Enough to find out if Phosphor is your kind of synth.

  • ✓2 Active Synthesis Engines
  • ✓10 free imagined patches to start
  • ✓Access to Preset library download
  • ✓Core effects rack included
  • —Mod Matrix modulation mapping
  • —Developer API generation keys
  • —Undertow expansion previews
START FREE

PRO MONTHLY

RECOMMENDED
$19/month

Every engine, every feature, and 25 Koins every month for Imagine.

  • ✓All 8 Synthesis Engines unlocked
  • ✓25 Koins every month
  • ✓Full Mod Matrix integration
  • ✓Access to community library
  • ✓Developer API Keys enabled
  • ✓Custom wavetable imports
  • ✓Undertow included (the full instrument)
  • ✓SPLAY mastering included
  • —Custom Binaural Spatial HRTF
GO PRO MONTHLY

MUSICIAN MONTHLY

MOST KOINS
$29/month

Everything in Pro, with double the monthly Koins for heavy Imagine use.

  • ✓All 8 Synthesis Engines unlocked
  • ✓50 Koins every month
  • ✓Full Mod Matrix integration
  • ✓Access to community library
  • ✓Developer API Keys enabled
  • ✓Custom wavetable imports
  • ✓Undertow included (the full instrument)
  • ✓SPLAY mastering included
  • —Custom Binaural Spatial HRTF
GO MUSICIAN

PRO ANNUAL

SAVE 22%
$179/year

Everything in Pro Monthly, plus early access to what we’re building next.

  • ✓All 8 Synthesis Engines unlocked
  • ✓25 Koins every month
  • ✓Full Mod Matrix integration
  • ✓Developer API Keys enabled
  • ✓Undertow included (the full instrument)
  • ✓SPLAY mastering included
  • ✓Custom Binaural Spatial HRTF
  • ✓Priority developer support channel
GO PRO ANNUAL

OWN AN INSTRUMENT OUTRIGHT

Perpetual licenses, no subscription

Buy the instrument. Keep it. Imagine still spends Koins (buy those below, or subscribe to Pro or Musician for a monthly allowance).

UNDERTOW CREATOR

$79once

Own Undertow outright. It’s a perpetual license, so canceling a subscription later never takes it away.

BUY UNDERTOW

PHOSPHOR CREATOR

$99once

Own Phosphor outright. The instrument stays on your account without a subscription.

BUY PHOSPHOR

BASS BUNDLE

$149once

Phosphor + Undertow together, $29 off buying separately. Both perpetual.

BUY THE BUNDLE

BUY KOINS

Koins for Imagine

Same packs as on your account, for anyone who wants more imagined patches without a subscription.

STARTER PACK

50 Koins

$6

BUY NOW

STUDIO PACK

250 Koins

$25

BUY NOW

PRO PACK

1000 Koins

$80

BUY NOW

Compare plans

CAPABILITYFREEPRO MONTHLYMUSICIANPRO ANNUAL
Monthly Koin allowance10 once25/mo50/mo25/mo
Modular Patch Mod Matrix—✓✓✓
Custom Wavetable Upload—✓✓✓
Imagine (patches from words)✓✓✓✓
Developer API Keys—✓✓✓
Binaural Spatial HRTF———✓
Undertow instrument—✓✓✓
SPLAY mastering plugin—✓✓✓

COMMON INQUIRIES

Frequently Asked Questions

How does Imagine work?

Type a description, like ‘heavy bass with a mechanical buzz’. An AI model reads it and picks engines, envelopes, filters, effects and modulation to match. You get a normal patch back, and every setting stays editable. One Koin covers the first take and your first 5 tweaks, then one more Koin per 5 further tweaks for as long as you keep going. Pro and Musician both include a monthly Koin allowance (25 or 50) so most Imagine use is already covered.

Can I cancel my subscription at any time?

Yes. Cancel from your account page whenever you like. There’s no contract and no cancellation fee.

Is Phosphor compatible with my DAW?

Phosphor runs on macOS and Windows as VST3, AU and AAX. We test it in Ableton Live, Logic Pro, FL Studio, Bitwig Studio and Reaper.

What is Undertow?

Undertow is our bass synth. Every subscription plan — Pro or Musician — includes it, or you can buy it outright for $79 with no subscription.

What's the difference between Pro and Musician?

Same instruments, same features — Musician just includes double the monthly Koins (50 vs. Pro’s 25) for $10/month more, for anyone using Imagine heavily enough to want the extra headroom.

ENTERPRISE & LABS

Custom Multi-Seat Licences & University SDKs

Deploy MURMUR across entire game design studios, film production companies, or academic classrooms. Custom API integrations, isolated models, and dedicated HRTF pipelines available.

CONTACT ENTERPRISE SALES