What it does
Customer.io combines customer data, audience segments and automated messaging journeys. Its tools include a visual workflow builder, reusable message components, transactional email and campaigns triggered by changes to people or related business objects.
A Customer.io journey can start from a change to an object or a relationship, not just an individual's profile. An education service, for example, can model classes and their participants and send a relevant update when the class changes. The message can use information from the object that triggered the journey.
The distinction between the trigger person and the recipient matters. A person joining an account could trigger a notice to that account's administrators; the person who caused the event is not necessarily the person receiving the email.
Essentials includes 5,000 profiles, counted as people plus objects, and two object types. A data model with several business entities therefore affects the package choice even before email volume grows. The platform also supplies reusable components and versioned templates for keeping those related messages consistent.
Customer.io pricing
| Plan | Published starting price in USD | Package |
|---|---|---|
| Essentials | $100 per month, billed monthly | 5,000 profiles, one million emails per month and two object types |
| Premium | $1,000 per month, billed yearly | Custom profile and email volumes, ten object types and onboarding support |
| Enterprise | Quoted | Dedicated infrastructure and additional support |
Start Essentials with Get started, or book a demo for a larger plan. Eligible early-stage companies can apply for a free year through the Startup Program; this is not a permanent free plan.
Strengths
- Object and relationship triggers support account-level lifecycle messages
- Reusable components and template versioning support related campaign content
Watch out for
- People and object profiles both contribute to profile capacity
- The number of object types depends on the chosen plan
Best for
- Product teams messaging users around shared accounts or other business entities
Sources
- Customer.io: Customer Engagement Platform For Better Outcomes (Oct 25, 2026)
- Use objects in liquid - Customer.io Documentation (Oct 25, 2026)
- Customer.io pricing and profile allowances (Oct 27, 2026)