Pay for usage. Never for seats.
One price covers analytics, campaigns, flags and replay — measured per organization, across all your projects. Prod, staging and dev don't cost extra.
Free
Pro
Scale
for volume — and the per-unit price that goes with it
Do the math yourself.
Drag your real usage. The estimate updates live — the same formula our billing runs on, nothing hidden.
What counts as what
an event
One tracked action — a kilden.track() call, an autocaptured click, or a pageview. Campaign triggers read events without creating billable ones, and flag requests have their own allowance — but the $feature_flag_called exposure a flag records counts like any event.
a replay
One recorded session, start to finish — however long it runs. A user browsing for 40 minutes is still one replay.
a message
One email sent by a behavioral campaign. Cancelled sends — like a cart-recovery email killed by a purchase — cost nothing.
what has no meter
Product tours, banners and surveys have no meter of their own — you pay only for the events they emit, like any other event. What counts as a message is an email or an in-app message sent by a campaign.
One bill, not five.
The usual alternative isn't one competitor — it's stitching together separate analytics, messaging, flags, replay and product-onboarding tools, each with its own SDK, its own identity graph, and its own invoice.
Billing questions, answered honestly
What happens when I hit the Free caps? +
Ingestion pauses until the next month — nothing is billed, nothing is deleted. Your dashboards keep working on the data you already have. Allowance resets monthly and unused amounts don't roll over.
How is usage measured? +
Per organization, aggregated across all its projects. Separate prod, staging and dev projects don't cost extra — they draw from the same pool.
Do you charge per seat? +
No. Unlimited team members on every plan, including Free. We charge for usage, not for people.
What about taxes? +
Handled by our merchant of record. Prices are shown in USD; local tax is added at checkout where applicable.
How do I cancel? +
Self-serve, from settings — no email, no call. Cancellation takes effect at the end of your billing period and your workspace drops to the Free tier.
Let's talk.
Tell us your volume, your retention needs and where you are today. A real person reads every message and answers within a business day.
The free tier is the product, not a demo.
1M events a month, forever. Upgrade only when your usage does.