Orb review: usage-based billing and revenue automation for B2B software and AI companies. Features, custom pricing, and top alternatives compared.
Orb is a billing and revenue automation platform purpose-built for B2B software companies that need to charge for usage rather than, or in addition to, flat subscriptions. Instead of hard-coding pricing logic into an application, teams send raw usage events to Orb and define pricing rules on top, letting finance and product teams change pricing without waiting on an engineering sprint.
Founded in 2021 by former Asana engineers Alvaro Morales and Kshitij Grover, Orb launched publicly in 2023 and quickly became known among AI infrastructure, cloud platform, and developer-tools companies that bill customers by API calls, compute, tokens, or other consumption metrics. In 2026 the company was acquired by payments giant Adyen to unify billing and payments infrastructure for enterprise merchants.
Orb's core is real-time event ingestion paired with flexible price modeling, so a company can support tiered, volume, per-unit, or hybrid subscription-plus-usage pricing from a single system. Invoicing supports backdating and backfilling usage data, which matters for companies that need to correct or reconcile metering after the fact.
Beyond billing mechanics, Orb includes spend controls and usage alerts, a customer-facing Experience Kit for dashboards and self-serve checkout, revenue simulation tools to model the financial impact of a pricing change before shipping it, and audit-ready workflows aligned to ASC 606 revenue recognition standards.
Orb does not publish flat-rate pricing. Instead, cost is based on two metrics: billings, the total value of invoices issued to a company's end customers through Orb, and events, the volume of raw usage records ingested into the platform.
Orb offers three named tiers: Core, Advanced, and Enterprise. Core covers the essential metering, invoicing, and pricing engine; Advanced (the most commonly adopted tier) adds a platform fee along with data warehouse sync, Salesforce and NetSuite integrations, customer hierarchy, and premium support; Enterprise adds dedicated support and enterprise-grade SLAs. All tiers require contacting Orb's sales team for a quote.
Orb is used by B2B software companies to meter product usage and automate billing, invoicing, and revenue recognition for usage-based and hybrid pricing models.
Orb's pricing is custom and based on billings (invoice value issued through Orb) and events (usage records ingested), with Core, Advanced, and Enterprise tiers available on request.
No, Orb is a billing and metering engine that integrates with finance, tax, and payment systems rather than processing payments itself.
Orb was acquired by Adyen in a deal announced in June 2026 and closed on July 1, 2026, and now operates as a wholly owned Adyen subsidiary.
Publicly named Orb customers include Vercel, Supabase, Redis, and LaunchDarkly.
Yes, Orb supports subscription, usage-based, and hybrid pricing combining both within the same contract.
Core covers essential metering and invoicing; Advanced adds a platform fee plus data warehouse sync, CRM/ERP integrations, and premium support; Enterprise adds dedicated support and enterprise SLAs.
Orb competes with Metronome, Zuora, Chargebee, and Stripe Billing in the usage-based billing space.