Pricing
EU-sovereign with guaranteed delivery on every tier — we never meter the number of notifications you send. Or self-host the open-source core and pay nothing.
For development and trying palumb end to end.
Production notifications for a growing product.
More capacity as your user base grows.
For regulated teams that need a DPA and a retained delivery record.
Prices indicative while we open up — priced by active subscribers, no per-seat and no per-message fees, cancel anytime.
Custom tier: multi-year retention, dedicated EU data residency and a credit-backed SLA — priced to your deployment.
The palumb core is open source. Self-host the durable runtime on your own EU infrastructure — same workflows, your hardware, zero licence cost.
Questions
Billing questions below. For product, sovereignty and technical questions, see the full FAQ →
By your number of active subscribers — a recipient who received at least one notification that month — not by message volume. Reliability is identical on every tier: EU-sovereign and guaranteed delivery. We never meter or cap the number of notifications you send.
That's the Custom tier: multi-year retention, dedicated EU data residency and a credit-backed SLA, priced to your deployment. Just get in touch.