Pricing
Simple, one-time pricing.
Every rumcake product is a one-time purchase: pay once and it is yours, with no subscription and no recurring charges, plus free updates within the version you buy. Plugins in the physics collection are £19 to £25 each, or take the whole collection in The rumcake rack bundle for £89. Kronos 3 Editor, our editor-librarian for the Korg Kronos 3, is a separate product at £69, with a £49 intro price for the first two weeks after launch. The physics plugins ship as an Audio Unit (AU) and VST3 for macOS (Apple silicon and Intel); Kronos 3 Editor adds a standalone app. VAT and any local sales tax are calculated and added automatically at checkout by Paddle, our Merchant of Record, who also issues your invoice. Prices are shown in GBP here; Paddle localises the displayed currency at checkout.
CymaticPlate
instrument
A real simulated plate. Watch the sand find the nodes.
One-time purchase. License key delivered instantly by email.
No subscription.
Mercury
instrument
88 mercury switches swinging under gravity on a shared rail.
One-time purchase. License key delivered instantly by email.
No subscription.
Lichtenberg
instrument
A lightning instrument. Play a note, seed a forked discharge.
One-time purchase. License key delivered instantly by email.
No subscription.
LoopDove
effect
A murmuration looper. Catch a few beats and fly them.
One-time purchase. License key delivered instantly by email.
No subscription.
Bloom
instrument
A self-playing ambient pad grown from reaction-diffusion.
One-time purchase. License key delivered instantly by email.
No subscription.
Ferro
instrument
A techno instrument built on a real ferrofluid. The magnetic pulse writes the riff.
One-time purchase. License key delivered instantly by email.
No subscription.
The rumcake rack
bundle
All six physics plugins, every instrument and the looper, for less than four bought alone.
One-time purchase. License key delivered instantly by email.
No subscription.
Hardware editors
A separate line of editor-librarians for the synths we love, starting with the Korg Kronos 3.
Kronos 3 Editor
editor
A fast editor and librarian for the Korg Kronos 3. Edit on screen, organise your banks.
One-time purchase. License key delivered instantly by email.
No subscription.
What every purchase includes
- AU and VST3 formats for macOS (Apple silicon and Intel); Kronos 3 Editor also includes a standalone app.
- A license key for use on your own machines, for commercial or personal work; audio you make with the plugins is royalty-free and yours.
- Free updates within the plugin you bought (a future major version may be sold separately, with a discount for existing licensees).
- Instant digital delivery: a download link and your license key are emailed on purchase.
Billing, tax and refunds
Checkout, payment, currency conversion, VAT/sales tax and invoicing are handled by Paddle.com Market Ltd, the Merchant of Record for all our orders. The price you commit to and the tax are shown before you pay, and purchases are one-time, never a subscription. For our refund terms see the Refund Policy; for the full sale terms see the Terms and Conditions.