Customer.io
Behavior-driven messaging platform for product-led B2C and B2B teams.
Customer.io is a marketing automation platform built for sophisticated B2C and B2B teams that need to send messaging based on rich behavioral data and custom object models. Where Mailchimp and Kit are list-and-broadcast tools, Customer.io is closer to a CDP plus messaging engine: profiles, objects (accounts, subscriptions, devices), and event streams drive a visual workflow builder. Three tiers are published, with Essentials at $100/month, Premium starting around $1,000/month billed yearly, and Enterprise quoted on request. HIPAA is available on Premium and above; an AI Agent ships across tiers with elevated limits on the higher plans.
- Category
- Marketing automation
- Free plan
- No
- Plans
- 3
- Verified
Plans & pricing
Headline prices for each Customer.io tier, captured from https://customer.io/pricing/ on .
Essentials
Entry tier with the visual workflow builder
- Contacts
- 5,000 profiles (people plus objects)
- Emails / month
- 1,000,000
- Team seats
- 1
Included
- Visual workflow builder
- AI Agent with core skills
- Up to 2 object types
- Basic data integrations
- Email and community support
- 1 weekly routine
Not on this plan
- HIPAA compliance
- Daily routines
- Premium integrations
- Elevated AI Agent limits
- Dedicated success manager
- Audit logging
Startup Program: qualifying early-stage companies can get 12 months free, but this is conditional rather than a generic trial. Seat count is not specified on the public pricing page; 1 is a conservative assumption.
Premium
Custom volume, HIPAA available, daily routines
- Contacts
- Custom
- Emails / month
- Custom
- Team seats
- ·
Included
- Everything in Essentials
- Up to 10 object types
- Elevated AI Agent limits
- Daily routines
- 90-day onboarding
- Premium chat and email support
- HIPAA available
- Premium integrations
Not on this plan
- Custom AI Agent execution
- Dedicated success manager
- Dedicated hardware
- Audit logging
- Migration support
- Shared Slack channel
Pricing page lists Premium as starting at $1,000/month billed yearly, which is $12,000/year. Profile and email volumes are negotiated.
Enterprise
Best volume pricing with dedicated infrastructure
- Contacts
- Custom
- Emails / month
- ·
- Team seats
- ·
Included
- Best volume pricing
- Custom AI Agent execution
- Priority support
- Dedicated success manager
- Dedicated hardware
- Audit logging
- Migration support
- Shared Slack channel
Pricing tagged as Let's talk on the public page. Includes everything in Premium plus dedicated infrastructure and security features.
Where Customer.io earns its price
- Visual workflow builder is genuinely strong for complex multi-step flows that branch on behavior and time delays
- Supports JSON profile data and object types, so you can model accounts, subscriptions, or devices alongside people; templated ESPs like Mailchimp and Kit cannot do this
- HIPAA compliance is available on Premium, which opens up healthcare and digital-health use cases
- AI Agent is bundled across tiers for routine ops and reporting tasks
- Essentials price is published transparently at $100/month, where many comparable platforms hide everything behind a sales call
Where it falls short
- Minimum entry point is $100/month with no free or low-cost tier for testing or hobby projects
- Setup overhead is higher than a templated ESP because you need to define profile and object schemas before flows are useful
- Premium jumps roughly 10x to $1,000/month for what is largely an unlock of object-type count, daily routines, and HIPAA, so the middle of the market is thin
- Real-world pricing on Premium and Enterprise depends on negotiated volume, so the public page only frames the floor
Best for
- B2C and B2B teams with custom objects in their data model (accounts, subscriptions, devices) who need messaging tied to those entities
- Product-led businesses sending behavior-triggered lifecycle messaging across email, SMS, and push
- Teams needing HIPAA compliance for healthcare or digital-health workflows
Not for
- Solo creators and newsletter operators (Kit or beehiiv are the right shape)
- Small businesses that need a $0/month or $20/month entry point (MailerLite or Mailchimp Free fit better)
- Teams that want a one-click WYSIWYG email tool with no data modeling required
Alternatives to Customer.io
Tools we cover in the same space.
Common questions
- Does Customer.io have a free plan?
- No. Customer.io does not offer a permanent free tier.
- How much does Customer.io cost?
- Customer.io starts at From $100/mo. Plan prices captured April 30, 2026.
Source: https://customer.io/pricing/ · last verified · capture method: manual
TierGauge tracks live pricing for marketing & sales tools. Prices may change between refreshes; confirm at the vendor's pricing page before purchasing.