Customer.io

More impact from every message, across every channel.

4.7•29 reviews•

1K followers

More impact from every message, across every channel.

4.7•29 reviews•

1K followers

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Marketing automation platforms

Customer.io unifies data, messaging, and AI into one platform so every customer interaction gets smarter over time. Teams use it to build personalized campaigns across email, SMS, push, in-app, and more—using first-party data to reach the right people at the right moment. AI is built in to remove the grunt work and sharpen results, so marketers can focus on strategy. Trusted by 9,000+ brands including Notion, Lovable, Wispr Flow, and Cursor.

Customer.io Reviews

The community submitted 29 reviews to tell us what they like about Customer.io, what Customer.io can do better, and more.

4.7

Based on 29 reviews

Review Customer.io?

Reviewers see Customer.io as powerful but hard to live with. A founder says teams value its behavior-based messaging, flexible workflows, and ability to run email, SMS, push, and in-app campaigns from one place; the makers of IFTTT specifically praise event-triggered messaging tied to real-world activity. But the user feedback here is sharply negative: small teams say it needs dedicated marketing and technical ownership, while the UI, journey builder, and especially the email editor are described as confusing and frustrating.