Product Avatar Image

Customer.io

Show rating breakdown
955 reviews
  • 1 profiles
  • 7 categories
Average star rating
4.4
#1 in 3 categories
Grid® leader
Serving customers since
2012
Profile Filters

All Products & Services

Profile Name

Star Rating

607
300
32
6
9

Customer.io Reviews

Review Filters
Profile Name
Star Rating
607
300
32
6
9
Verified User in Consumer Services
EC
Verified User in Consumer Services
09/24/2026
Validated Reviewer
Verified Current User
Review source: Seller invite
Incentivized Review

Powerful for small product teams, with a learning curve

What I like most is how quickly we can go from an idea to a live campaign. The AI Agent has been a real time-saver: I can give it a structured brief with the segment, flow logic, and copy, and it builds the campaign and drip steps for me. That lets me run experiments and do research outreach without waiting on engineering or spending hours in the builder. Segmentation is flexible enough to target very specific cohorts based on user attributes and behaviour, which matters a lot for us because we serve different user types across payment methods. The visual workflow builder is also intuitive, so it’s easy to review a flow and understand every branch before it goes live. On the integrations side, reporting webhooks let us send email events like opens, clicks, and bounces into our own data warehouse, so we can analyse campaign performance alongside product and payments data. Connected data and webhook actions also make it possible to pull in things like promo codes from our own systems. Performance has been reliable at our volumes, and the platform feels like it’s built to scale with us. The documentation is thorough and made setup straightforward. Given how much we can do without engineering involvement, it’s been good value for a small product team. Overall, it gives us a lot of leverage: the power of a proper lifecycle messaging tool without it turning into a bottleneck.
Verified User in Marketing and Advertising
AM
Verified User in Marketing and Advertising
09/24/2026
Validated Reviewer
Verified Current User
Review source: Seller invite
Incentivized Review

Easy User Data Storage and Search for Personalised Marketing

The ability to store user profile data, and then find user data easily makes this a great platform for enabling personalised marketing.
Addison S.
AS
Addison S.
09/24/2026
Validated Reviewer
Verified Current User
Review source: Seller invite
Incentivized Review

Powerful New MCP Server, but Slow Performance and Clunky Email Template Management

I love the new MCP server and more agentic ways to manage, report on, and build automations on.

About

Contact

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
Website
customer.io