Customer.io Reviews in July 2026: User Ratings, Pros & Cons

"Great product"

What do you like best about Customer.io? Collecting all data and messages against a customer in the same place. This results in a better overview and understanding of what messages we send and when. What do you dislike about Customer.io? There are some technical limitations with Customer.io that require some workarounds from our end. It's really company-specific though. What problems is Customer.io solving and how is that benefiting you? Communicating with customers during different stages ...

"Customer.io helped us increase our week over week retention by 3x."

What do you like best about Customer.io? Customer.io has been a game-changer in our user engagement and marketing strategy. Its standout feature is its adaptability to seamlessly integrate with various tech stacks and its support for webhooks, giving you unparalleled control over your messaging. By harnessing their event-driven marketing capabilities, we were able to precisely target users throughout their customer journey. This strategic approach led to remarkable results, including a ...

"Best Email engagement software"

What do you like best about Customer.io? We user customer.io to send Emails to our customers, both transactional and promotional. We are able to set and forget about the transactional campaigns is what I like best What do you dislike about Customer.io? To see what emails are being sent to each of our different users is a little difficult. I would like them to add some tooltips and guides for me to understand the product better What problems is Customer.io solving and how is that benefiting ...

"Connect with your customers at exactly the right moment"

What do you like best about Customer.io? Several ways to customise the journeys for your customers; tightly integrated into your product and your database, so you can engage with users at the moment they perform certain events or their status changes. What do you dislike about Customer.io? You definitely need the tech team's help to make it work! What problems is Customer.io solving and how is that benefiting you? We can easily set up marketing campaigns, and A/B test them with minimal help ...

"To the roof"

What do you like best about Customer.io? Flexibility, easyness, innovation and price. What do you dislike about Customer.io? Nothing, it matches all our needs and the amount of new features released per month is incredible. What problems is Customer.io solving and how is that benefiting you? We have a single orchestration platforms for all campaigns, communications, transactionals and digital data.

"To the roof"

What do you like best about Customer.io? Flexibility, easyness, innovation and price. What do you dislike about Customer.io? Nothing, it matches all our needs and the amount of new features released per month is incredible. What problems is Customer.io solving and how is that benefiting you? We have a single orchestration platforms for all campaigns, communications, transactionals and digital data.

"Best in class"

What do you like best about Customer.io? Their support is fast and always solve our issues. We don't need coders to work with APIs, webhooks and Whatsapp What do you dislike about Customer.io? I don't have nothing to complain about CIO What problems is Customer.io solving and how is that benefiting you? We can scale our full business without the need to rely on different platforms

"The gift that keeps on giving!"

What do you like best about Customer.io? Customer.io seems to always bee one step ahead of me. Whenever I have an idea and am curious if Customer.io is able to support me in completing it, it seems like it always can. What do you dislike about Customer.io? Not much. Sometimes it can be a bit technical, but that is likely my fault more than the platform. What problems is Customer.io solving and how is that benefiting you? Automation of campagins and broadcasts inside and outside of our platform.

"Best in class marketing automation solution"

What do you like best about Customer.io? Easy to use with great amount of flexibility & capabilities What do you dislike about Customer.io? Might be challenging to setup without proper planning What problems is Customer.io solving and how is that benefiting you? Great way to send automated campaigns and regular campaigns across email and mobile

"Easiest way to make custom emails"

What do you like best about Customer.io? What I really like is the easy it is to design email and to send them via API. This make our developing time shorter and our designer can directly edit our templates. Also the history of emails sent is pretty cool, this have help us a lot in customer support terms, to know if a client received their emails, if they opened it, etc What do you dislike about Customer.io? I understand is for security reasons but having to double authenticate every time I ...