Customer IO - Product Information, Latest Updates, and Reviews 2025

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What is Customer IO?

A tool that lends you a helping hand to craft ideal customer interaction for your clients. It is a B2C solution that connects emails to mobile phones and helps in sending all types of messages across all platforms.

Do you use Customer IO?

Email marketing•Marketing automation platforms•Customer loyalty platforms

Recent Launches

From Churn to Earn Retention tactics using behavioral email, NPS, & Slack bots

Launched on March 27th, 2017

Customer.io Slack Action Send notifications into Slack, based on user activity

Launched on October 26th, 2016

Customer.io Actions Send messages across any channel - from push to postcards

Launched on August 9th, 2016

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Review Customer IO?

4.17/5 based on 7 reviews

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Maker reviews

Ali Jafari used this to build

Sagehood AI

(1,489 points)

Customer IO stands out for its powerful automation capabilities and behavioral messaging tools. It allows us to create highly personalized communication workflows, improving engagement and retention effortlessly.

26d ago

Ghost Kitty used this to build

Aimfox

(1,396 points)

When it comes to email automation, Customer.io is our secret weapon. The level of control and granularity it provides for building workflows beats the cookie-cutter approach of others. It empowers us to create hyper-personalized campaigns triggered by actual user behaviors, driving results without drowning in complexity.

2mo ago

Vova Kenih used this to build

Screenful

(94 points)

We made the switch to Customer.io after trying out Loops and Userlist, and it’s been a great decision. It’s powerful enough to handle all our SaaS communication needs, yet still easy to use. It works smoothly across multiple integrations and makes personalizing content simple. On top of that, the support team is always quick to respond and super helpful.

10d ago

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Reviews

Unknown User

Shopify NFT App

•32 reviews

Just started using but so far is good. Only missing a more fast UI and better CMS with more functionalities and features. Way too basic

1yr ago

Pedro Orlando

•1 review

Pretty awesome product. I've tried quite a few. And 1yr for free.

5mo ago

SANTHOSH Muthu

•75 reviews

Customer.io is great for sending personalized, automated emails based on user behavior. It offers strong segmentation and flexibility, but the interface can feel complex for beginners.

4mo ago

Erik Tällberg

•1 review

We use CustomerIO to send emails to our customers. It's continuously painful. The email editor is a mess. The deliveries and draft features fail to show everything.

8mo ago

Vitaliy

•2 reviews

Easy to use. Easy to setup. Like it

1yr ago

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