Automate customer lifecycle emails and campaigns

Trigger more engagement with relevant messages based on what customers are doing in your product

Harness real-time customer behavior data to create automated campaigns that work for you.

How data moves from your app to Customer.io and through to deployment.

Whatever your role, we've got you covered.

Smart Marketers

Send targeted emails, push, SMS, and more to nudge people along the lifecycle and increase retention.

Learn how to fast-track the customer lifecycle

Product Managers

Drive deeper engagement and successful customer experiences with onboarding and feature adoption.

Learn how to improve product experience

Growth Mavens

Enrich, innovate, and iterate on emails to move the needle on conversion optimization and business growth.

Learn how to spur data-driven growth


It seems like magic,
but it’s really pretty simple!

A light integration sends the Customer.io platform customer behavior data from your web or mobile app. Then you can start sending emails, push, SMS, webhooks, and even letters! All based on what users do or don't do after they log in. Increase engagement, revenue, and customer success.

Learn more about integration
James logged in
James logged in for the 100th time
James joined segment "Awesome Users"
Automatically email James

You're now in control.
Say goodbye to engineering rage.

Remove the heavy burden on engineering to make changes and export data. You’ll create new messages faster, and get real-time results on how every message is performing.

Automatically message them when their behavior matches all of the following conditions:

email
contains
@amiverse
status
is
adorable
music_preferences
contains
disco

The product engagement platform you've been looking for.

Peace of mind
that we've got your back

Sure, we could say that our core values as a company are to be transparent, responsive and to put you, our customers first? But maybe we need a reference here:

"Their support team is WOW. They've completely raised the bar for my support expectations from other SaaS companies. They are instant, descriptive, knowledgeable and hustlers."
Pratik Agarwal
Product Manager at Remind

Over 900 successful customers including:

Trello, DigitalOcean, and Olark are just some of the companies that use and trust Customer.io!

Learn how Thinkful, an online education company, increased email engagement by 67%


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