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What is Customer.io?

"Customer.io helps you send targeted human messages to your users, by utilizing their unique interactions with your business."

Customer.io is a technology company changing the way businesses interact with their customers.

We allow you to send emails to people based on how they use your app.

We track user behavior, and use techniques pioneered by Google to identify the "needle in a haystack" in big sets of data. We then send emails and track how they influence user behavior.


Customer.io scored 77/100 in the Email Marketing category. This is based on user satisfaction (76/100), press buzz (66/100), recent user trends (falling), and other relevant information on Customer.io gathered from around the web.

The score for this service has improved over the past month. What is this?

  • Customer.io

Customer.io Product Overview

  • Create segments from any data.

  • Send the right messages at the right time.

  • Customer.io captures on-site and in-app behavior to build profiles of every single sign up.

  • See how people are using your app. You'll have a view of activity for every person in the system.


Languages: English

Customer.io Features

  • 2-Factor Authentication
  • A/B Testing
  • API
  • Audience Targeting
  • Batch Permissions & Access
  • Brand Management
  • Budgeting
  • Calendar Management
  • Contact Management
  • Contact Sharing
  • Conversion Tracking
  • CRM Integration
  • Customer Management
  • Dashboard
  • Data Export
  • Data Import
  • Data Visualization
  • Email Integration
  • Expense Tracking
  • External Integrations
  • File Sharing
  • File Transfer
  • Forecasting
  • Gantt Charts
  • Google Apps Integration
  • Inventory Tracking
  • Lead Management
  • Lead Scoring
  • Marketing Automation
  • Multi-Currency
  • Multi-User
  • Notifications
  • Project Management
  • Referral Tracking
  • Scheduling
  • Social-Media Integration
  • Supplier Management
  • Task Scheduling/Tracking
  • Third-Party Plugins/Add-Ons
  • Travel Management
  • Call Tracking
  • Call Disposition
  • Softphone
  • Sales Motivator
  • Click-to-Dial
  • Review Monitoring
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