G2

Mykola D.

Head of Growth

Small-Business (50 or fewer emp.)

10/27/2026

"Simple API Setup and Easy Email Templates That Save Time"

4.5/5

What do you like best about Customer.io?

Sending events and user attributes through their API was simple, and our developers had it running quickly without a lot of custom work. Once the data was flowing, we could trigger messages from real user actions right away. Building email templates is also really easy. We can create and edit templates ourselves and reuse them across campaigns without going back to a developer every time, which saves our team a lot of time. Review collected by and hosted on G2.com.

What do you dislike about Customer.io?

There isn’t much I dislike, but there’s a learning curve with some of the more advanced features. Setting up complex workflows and segments took some trial and error at first, and the documentation could include more examples for those cases. The reporting could also go deeper, since we sometimes export data to analyze campaign performance elsewhere. Pricing can add up as your contact list grows, so it’s worth planning for that. Review collected by and hosted on G2.com.

What problems is Customer.io solving and how is that benefiting you?

We use Customer.io to bring back B2C customers who left their email but didn’t complete a purchase. Before, many of these leads were simply lost because we had no reliable way to follow up with them at the right time. Now we have automated email sequences that trigger as soon as someone leaves their email without buying, with reminders and offers sent over the following days. Because messages are based on what each person actually did on our site, they feel relevant instead of generic. As a result, we recover a meaningful share of customers who would otherwise have dropped off, and it runs on its own without manual work from our team. Review collected by and hosted on G2.com.