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Customer.io

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731 reviews
  • 1 profiles
  • 7 categories
Average star rating
4.4
#1 in 2 categories
Grid® leader
Serving customers since
2012
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489
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Customer.io Reviews

Review Filters
Profile Name
Star Rating
489
211
19
3
9
Mariela S.
MS
Mariela S.
03/17/2026
Validated Reviewer
Review source: Seller invite
Incentivized Review
Translated Using AI

Flexible and Intuitive, Perfect for Automation

I use Customer.io as a Marketing Automation tool and find it super easy to use and very powerful. The journey builder is excellent and there is really almost nothing it can't do. As for integration, Customer.io turned out to be very flexible and easy to integrate, something our developers appreciated from the very first moment.
SAHIL N.
SN
SAHIL N.
03/13/2026
Validated Reviewer
Review source: G2 invite
Incentivized Review

Powerful Real-Time Behavioral Data Integration

provides real time powerful behavioral data integration implementations was super quick
Hough S.
HS
Hough S.
03/12/2026
Validated Reviewer
Review source: G2 invite
Incentivized Review

Automates Personalized Messaging with Precision

I like how strongly Customer.io connects real-time user behavior to automated messaging without requiring heavy engineering work. The event-based automation and journey builder stand out because they let us build entire workflows based on exactly what users do in our product. This precision drastically improves engagement and product adoption by ensuring we send the right message at exactly the right moment. Customer.io automates personalized, real-time messaging across email, in-app notifications, and SMS. By triggering events directly based on user behavior, it significantly helps with user onboarding, retention, and product-led growth.

About

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HQ Location:
Portland, OR

Social

@CustomerIO

What is Customer.io?

Create personalized customer journeys that engage and convert with our versatile customer engagement platform. Scale, flex, and innovate at your own pace. Because when powered by data, your messages lead to meaningful relationships.Deliver meaningful interactions: Make every message relevant by building unique customer interactions across mobile and web using email, in-app messages, SMS, and push notifications.Designed to help you scale: Manage all your messaging in one place with a platform that seamlessly integrates with the tools you use every day.Data without limits: Put an end to data silos by easily moving real-time data from source to destination and crafting campaigns with unlimited profile attributes, events, or actions.

Details

Year Founded
2012