What is Customer.io?

Customer.io is a customer engagement platform that helps marketing and product teams turn behavioral data into personalized, automated messaging campaigns. It lets teams trigger emails, SMS, push notifications, in-app messages, and webhooks based on real-time customer actions rather than static lists, using a visual drag and drop workflow builder called Journeys.

The platform combines data unification, segmentation, and AI-assisted campaign building so marketers can create targeted customer journeys across the full lifecycle, from onboarding to retention and cross-sell. It integrates with tools like Segment, Salesforce, HubSpot, Snowflake, and Zapier, and offers a REST API for custom data pipelines, making it popular with technical teams that have solid event tracking already in place.

Key Features of Customer.io

Here are the powerful features that make Customer.io stand out from the competition. Packed with innovative tools and advanced functionalities, this software offers a range of benefits.

  • Visual drag-and-drop workflow builder (Journeys) for automated customer campaigns
  • Event-driven, behavior-triggered messaging based on real-time actions
  • Multi-channel messaging: email, SMS, push notifications, in-app messages, Slack, and webhooks
  • Dynamic audience segmentation using profile attributes and event data
  • A/B testing for campaigns and messages
  • AI Agent for conversation-based campaign building with brand consistency
  • Design Studio for building and formatting messages at scale
  • Analytics and reporting on campaign and messaging performance
  • Native integrations with Segment, Salesforce, HubSpot, Snowflake, BigQuery, and Zapier
  • REST API and webhooks for custom data integrations

Customer.io Pricing

Here are the pricing plans for Customer.io. Choose the plan that best fits your requirements and budget.

Essentials

$100/month

5,000 profiles, 1 million emails/month, 2 object types

Visual workflow builder, AI Agent with core execution skills, basic data integrations, email and community support

Premium

$1,000/month (billed yearly)

Custom profile and email volume, custom object types

Elevated AI Agent limits, premium data integrations (Salesforce, HubSpot, Snowflake, BigQuery), HIPAA compliance available, 90-day onboarding, dedicated Customer Success Manager, priority technical support

Enterprise

Custom

Custom volume and infrastructure

Dedicated hardware, advanced security, custom terms, dedicated technical implementation specialist, shared Slack channel

Customer.io Specifications

Get a closer look at the technical specifications and system requirements for Customer.io. Find out if it's compatible with your operating system and other software.

Software Tagline :
Data-driven customer engagement platform for automated email, SMS, push, and in-app messaging
Deployment :
  • cloud based
Subscription Plan :
monthly
Desktop Platforms :
  • web app
Mobile Platforms :
  • ios
  • android
Language Support :
en
Target Audience :
  • startups
  • smes
  • agencies
  • enterprises
Available Support :
  • email
  • live support
  • tickets
  • training
Integrations :
Segment, Salesforce (bidirectional), HubSpot, Zapier, Shopify, Amazon S3, Amazon Redshift, Azure Blob Storage, Google BigQuery, Google Cloud Storage, Snowflake, and a REST API/webhooks for custom connections
Product Url :
API Available :
Yes
Free Trial Available :
Yes
Run On Mobile Browser :
Yes
Free Plan Available :
No
Customization Available :
Yes

Customer.io Videos

Customer.io Screenshots

Alternatives

Explore alternative software options that can fulfill similar requirements as Customer.io. Evaluate their features, pricing, and user feedback to find the perfect fit for your needs.

Customer.io Comparisons

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Overall Customer.io Reviews

Here's our unbiased review of Customer.io. Discover how our team of experts rates its features, ease of use, customer support, and other aspects that contribute to its overall appeal.

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Customer.io Pros and Cons

Customer.io FAQs

No, Customer.io does not offer a permanent free plan. It offers a 14-day free trial with no credit card required, allowing up to 5,000 messages across all channels.

Customer.io supports email, SMS, push notifications, in-app messages, Slack, and webhooks, all triggered by real-time customer behavior and data.

Plans start at $100/month for the Essentials tier (5,000 profiles, 1 million emails/month). The Premium tier starts around $1,000/month billed yearly with custom volume pricing, and Enterprise pricing is custom quoted.

Yes, Customer.io provides a REST API and webhooks for sending customer data, triggering events, and building custom integrations beyond its native app integrations.

Customer.io is powerful but has a steeper learning curve than simpler email tools. It assumes familiarity with lifecycle marketing concepts, and setting up event tracking typically requires developer involvement.

Yes, eligible early-stage companies that have raised under $10M can get up to 12 months free through the Customer.io Startup Program, including up to 30,000 customer profiles at no cost.