Customer.io Reviews in June 2025: User Ratings, Pros & Cons

"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 tool for automated customer messaging"

What do you like best about Customer.io? Customer.io is cabable to do a lot of things that would otherwise need to be custom built. I haven't found any use case which customer.io doesn't solve. What do you dislike about Customer.io? The interface can be a bit complex for non-techy users. But that's usually the case with tools that have really powerful capabilities. What problems is Customer.io solving and how is that benefiting you? We use customer.io to build onboarding sequences and ...

"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 ...

"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 ...

"Capable platform with a lot of possibilities,"

What do you like best about Customer.io? I like the advanced possibilites to use data for tailored messaging, both for content and building flows. What do you dislike about Customer.io? The drag-and-drop editor for email is lacking in its capabilities and is behind some competitors in the way it works. What problems is Customer.io solving and how is that benefiting you? We have big need in communicating with our customers and also driving behaviours that align with our business goals. The ...

"Game changer for automating customer and onboarding messages!"

What do you like best about Customer.io? Super useful to create flows and trigger based campaigns. It's almost like playing with Legos where once you have enough building blocks set it, the entire flow or campaigns will work like magic. On top of that you can A/B test subjects or email copies like a piece of cake! What do you dislike about Customer.io? While the tool is an absolute beast, some little caveats like not being able to know what devices the emails are opened and read on can be a ...

"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.

"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 ...

"Best tool for automated customer messaging"

What do you like best about Customer.io? Customer.io is cabable to do a lot of things that would otherwise need to be custom built. I haven't found any use case which customer.io doesn't solve. What do you dislike about Customer.io? The interface can be a bit complex for non-techy users. But that's usually the case with tools that have really powerful capabilities. What problems is Customer.io solving and how is that benefiting you? We use customer.io to build onboarding sequences and ...