The Pro tier is structured on a usage-based pricing model, specifically focusing on the volume of events. It is not a flat rate per user but rather a cost that is determined by the number of events generated. The Pro tier is priced at $150 per month for up to 5 million events.
Beyond this threshold, additional events are billed at a rate of $50 per million events. Metered events are the key factor in this pricing structure and include any instance where a user is assigned to a feature gate or experiment, which is recorded as an 'exposure event.' These exposure events are deduplicated within certain time windows to ensure accurate billing For client-side SDKs, the deduplication window is one hour, and for server-side SDKs, it is one minute.
Additionally, custom events logged through the SDK, inbound integrations, or data warehouse rows are also counted as metered events.