Orb review

Orb is a billing engine for companies whose pricing depends on usage. The Business plan is pay as you go at $6.00 per credit, with lower rates at volume, and includes real-time event ingestion, real-time alerting, hybrid and usage-based billing, Orb Invoicing with A/R aging, Adyen and Stripe payments integrations, automated price changes, and finance and tax integrations. Usage arrives through an idempotent API or as files dropped into S3 or GCS, and billable metrics are written in SQL over raw events with parameters for reuse. A pricebook holds every price, plan and add-on, plan versions let you migrate customers on your own schedule, and simulations show how a pricing change would land on real customer data before launch. Enterprise adds customer hierarchies, collections automation, NetSuite and Salesforce integrations, a 99.9% availability SLA, data exports and audit logs. The credit model is flexible, but it makes costs harder to forecast than a flat fee.

Who it is for

Product and engineering teams at usage-priced software and AI companies that change pricing often.

Price

Business plan at $6.00 per credit, less with volume discounts; Enterprise custom.

$6.00 per credit, or less with volume discounts
Quoted from the vendor pricing page on November 9, 2026.

Key features

• Real-time event ingestion via API or S3 and GCS file drops
• Custom SQL billable metrics with parameters
• Pricebook with plan versions and scheduled migrations
• Simulations of pricing changes on real customer data
• Orb Invoicing, A/R aging and Adyen or Stripe payments

Strengths and weaknesses

• Strength: Pay-as-you-go Business plan with no published minimum
• Strength: SQL metrics let you bill on almost any product event
• Strength: Prepaid credits, allocations, trials and coupons are built in
• Weakness: Credit-based pricing is hard to estimate before you talk to Orb
• Weakness: Collections automation and NetSuite and Salesforce integrations need Enterprise
• Weakness: Built for usage billing, so simple seat plans may be overkill

Key facts

• Business price: $6.00 per credit
• Enterprise SLA: 99.9% availability
• Payments integrations: Adyen and Stripe

Where it ranks

Orb is No. 8 in our Best Subscription Billing Software verdict.