Customer.io
Customer engagement platform that turns data into personalized email, SMS, and push notification campaigns.
| What is it | Customer engagement platform that turns data into personalized email, SMS, and push notification campaigns. |
|---|---|
| Pricing | Paid — from $100/mo |
| Free tier | No |
| Platform | Web Application |
| API | Yes |
| Works with | Claude AI, IFTTT, n8n, Zapier |
| Best for | automating customer onboarding sequences, running retention campaigns to reduce churn |
| Domain registered | 2011 |
Data updated Aug. 1, 2026
What does Customer.io do?
Customer.io is a platform for managing customer communication. It helps businesses send personalized messages across email, SMS, push notifications, and in-app channels. The core idea is to use customer data to automate campaigns, so messages are relevant and timely. You can set up automated journeys that trigger based on user actions, like signing up or not using a feature for a while.
The platform includes tools for segmenting audiences, designing messages visually, and integrating data from other apps. A key feature is an AI Agent that helps build and analyze campaigns through conversation. You can describe a campaign goal, and the Agent sets up triggers, content, and logic. It also provides performance analysis and remembers your brand's preferences across sessions.
Marketing teams at companies of all sizes use Customer.io to guide users from sign-up to becoming active customers. It's particularly useful for automating welcome sequences, re-engaging users who might leave, and promoting new features based on how people use a product. The platform is built to handle large volumes of messages while keeping data secure and compliant with regulations like GDPR.
Key features
What makes it stand outWho is Customer.io for?
Who benefits most from this toolPricing
Essentials
- 1,000,000 emails
- 5,000 profiles
- 2 object types
- 5k profiles (people + objects)
- AI Agent with core execution skills
- 1 million emails per month
- 2 object types
- Visual workflow builder
- LLM Actions with 100K credit sample
- Email and community support
- Basic data integrations
Premium
Everything in Essentials, plus:
- 10 object types
- Custom profile volume & pricing
- Custom email volume & pricing
- 10 object types
- Elevated Agent limits + custom skills
- Daily Routines (scheduled tasks)
- Premium chat & email support
- 90-day onboarding support
- HIPAA Compliance*
- Premium data integrations
Enterprise
Everything in Premium, plus:
- Our best pricing on profile & email volume
- Custom Agent limits + execution skills
- Priority technical support
- Migration support*
- Dedicated Customer Success Manager*
- Dedicated hardware
- Audit logging & data governance
- Dedicated Technical Implementation Specialist*
- Shared Slack channel*
Trust & presence
Gallery
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