> ## Documentation Index
> Fetch the complete documentation index at: https://docs.meetdarwin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Understand booking-based usage

> See what counts, what is included, and how to estimate the month.

<div className="darwin-location"><strong>Find it in Darwin</strong> Settings → Plan & usage <a href="https://app.meetdarwin.ai/admin/settings/billing">Open this screen ↗</a></div>

Darwin bills for verified, Darwin-attributed **meetings booked**. It does not wait for a meeting to be held. Opening chat, clicking a scheduling link, or leaving an email address does not by itself create a billable booking.

## How a booking affects your bill

1. A verified booking is attributed to your workspace and conversation.
2. Darwin applies an available included booking.
3. Once the allowance is used, later eligible bookings use your plan’s per-booking rate.
4. Usage is reported for billing. Processing can take time, so invoice updates may lag the on-screen ledger.

The same verified provider booking is not counted again just because its event is delivered more than once.

## Examples

| Situation                                                            | Calculation before tax             |
| -------------------------------------------------------------------- | ---------------------------------- |
| Origin, first month, 8 bookings, all 5 free bookings still available | 3 × $20 = **$60\*\*                |
| Origin, 8 bookings after the free allowance is used                  | 8 × $20 = **$160\*\*               |
| Adapt monthly, 12 bookings                                           | $99 + (12 − 5) × $15 = **\$204**   |
| Evolve monthly, 35 bookings                                          | $299 + (35 − 20) × $10 = **\$449** |
| Apex monthly, 70 bookings                                            | $699 + (70 − 60) × $5 = **\$749**  |

For annual plans, the annual base is paid upfront. Monthly usage invoices cover overages after that month’s included allowance; the monthly-equivalent base price is for comparison, not a second monthly subscription charge.

## Check a discrepancy

Compare the active workspace, billing-cycle dates, included allowance, and recent verified usage. Analytics and the inbox show recorded conversation outcomes; the billing ledger requires verified booking attribution.

Do not assume a cancellation or no-show automatically reverses usage: billing is based on the booking event, and the current self-service flow does not promise automatic cancellation credits. [Ask for a review](/help/contact) when an entry looks wrong.