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Customer.io

Developer-focused behavioral messaging across email, push, SMS, and in-app.

4.7· 87 reviews· via CapterraFounded 2012 · Portland, OR

What is Customer.io?

Customer.io is a behavioral messaging platform that sends automated, data-driven messages across email, push, SMS, and in-app based on user activity. It is developer-focused and built for product-led and lifecycle marketing.

Best known for: Behavioral, data-driven customer messaging

Key features

  • Behavioral trigger messaging
  • Email, push, SMS, and in-app channels
  • Visual workflow builder
  • Real-time data segmentation
  • A/B testing
  • APIs and webhooks

Who Customer.io is best for

  • Product and growth teams that want event-driven, behavioral messaging
  • SaaS companies that need messaging tied to real product data
  • Developer-led teams comfortable building with APIs and data pipelines

Ideal team: Product-led SaaS and tech companies (10–500) with engineering resources that want granular, data-driven lifecycle messaging.

Customer.io pricing

Essentials

$100/per profile / mo

  • Up to ~5,000 profiles
  • Email, push & SMS channels
  • Core data integrations

Premium

$1000/per profile / mo

  • From $1,000/mo (scales by profiles)
  • Dedicated success manager
  • HIPAA compliance available

Costs to watch before you commit

  • Cost scales on both profile count and message volume — overages beyond allotments add up.
  • Only Essentials has a public entry price; Standard, Premium, and Enterprise are all quote-based.
  • Non-people 'objects' count toward your billable profile total.
  • HIPAA compliance and dedicated infrastructure are gated to higher tiers.

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