Customer.io

Customer.io

Customer.io is a powerful marketing automation platform that enables businesses to send targeted, behavior-driven email, SMS, and push notifications. Designed for product-led companies and SaaS businesses, it combines customer data with sophisticated segmentation and messaging workflows to deliver personalized customer experiences.

Free plan available

Visit Website

Features

Behavioral email and SMS campaigns
Advanced customer segmentation and targeting
Multi-channel messaging (email, SMS, push, in-app)
Event-triggered automation workflows
A/B testing and campaign analytics
Customer data platform with real-time tracking

Pros & Cons

Pros

  • +Developer-friendly with robust API and webhooks
  • +Highly flexible segmentation based on user behavior and attributes
  • +Excellent deliverability rates for email campaigns
  • +Powerful liquid templating for dynamic content personalization

Cons

  • -Steeper learning curve compared to simpler email tools
  • -Pricing can become expensive as contact lists grow
  • -Limited pre-built templates compared to competitors

Pricing

PlanPriceFeatures
Essentials$100/moUp to 12,000 profiles, Unlimited messages, Email and in-app messaging, Basic segmentation, API access
Premium$1,000/moCustom profile limits, Advanced segmentation, SMS and push notifications, A/B testing, Data warehouses sync, Webhooks
EnterpriseCustom pricingUnlimited profiles, Dedicated support, Custom integrations, Advanced security features, SLA guarantees, Professional services

Quick Info

Starting Price
Free
Features
6 listed

Compare Customer.io

See how Customer.io stacks up against other tools

Alternatives to Customer.io

Other Marketing Automation tools you might consider

HubSpot Marketing Hub

HubSpot Marketing Hub

Free

HubSpot Marketing Hub is an all-in-one inbound marketing platform that helps businesses attract, engage, and delight customers through email marketing, automation, SEO, and analytics. Perfect for small to enterprise-level marketing teams looking to scale their lead generation and nurture campaigns with powerful CRM integration.

Email marketing with drag-and-drop builder and A/B testingMarketing automation workflows and lead nurturingLanding page and form builder with conversion optimization
Marketo

Marketo

From $895/mo

Marketo Engage is an enterprise-grade marketing automation platform by Adobe that helps B2B and B2C marketers manage lead generation, nurturing, and account-based marketing at scale. It combines email marketing, lead management, and revenue attribution to drive customer engagement across the entire buyer journey.

Advanced lead scoring and nurturing workflowsMulti-channel campaign management (email, social, mobile, web)Account-based marketing (ABM) capabilities
Pardot (Salesforce)

Pardot (Salesforce)

From $1250/mo

Pardot (now Marketing Cloud Account Engagement) is Salesforce's B2B marketing automation platform designed to help marketing and sales teams align, generate quality leads, and accelerate pipeline growth. It provides powerful tools for email marketing, lead nurturing, scoring, and ROI reporting with native Salesforce CRM integration.

Email marketing and drip campaign automationLead scoring and grading based on behavior and demographicsLanding page and form builder with A/B testing
Mailchimp Marketing

Mailchimp Marketing

Free

Mailchimp is an all-in-one marketing automation platform that helps businesses manage email campaigns, audience engagement, and customer relationships. Designed for small to medium-sized businesses, it combines email marketing with CRM, landing pages, and multi-channel marketing tools.

Email campaign builder with drag-and-drop editorMarketing automation and customer journey mappingAudience segmentation and behavioral targeting