What do users say about Customer.io?

I like the granular control over custom user segmentation and the rapid, near-instant segment updates. I can define complex multi-condition cohorts based on live attributes and event recency, and those segments refresh in real time. Review collected by and hosted on G2.com.

I find managing Customer.io can become overly complex at scale. The initial technical setup took about three weeks of collaborative effort between marketing and data engineers. Review collected by and hosted on G2.com.

I really love how easy it is to build flows with Customer.io. It's probably my favorite feature. I also enjoy being able to set specific conversion metrics for each flow, which makes it really easy to track the success of my work. Additionally, the initial setup of Customer.io was super easy. Review collected by and hosted on G2.com.

Understanding the data and creating easily trackable dashboards is hard, so I find that reporting on certain flows and the metrics is a little bit tricky, and I end up relying more on Amplitude for that. Review collected by and hosted on G2.com.

The best thing about this Customer.io platform is I like how it is flexible for building personalized customer journey based on our business specific real user behaviour rather than sending the same campaign to every sort of target audience this platform helps us to segment users and trigger messages based on specific actions and also it helped us to create more relevant communication channel across email SMS and in app channels this platforms workflow builder behavioral triggers and audience segmentation are very helpful for life cycle marketing it also helps us by reducing dependency on manual follow up because many customer communication flows can be automated once we have the data and journey setup done this platform also helps us with a strong product led businesses that needs to engage user based on the sign up and usage. Review collected by and hosted on G2.com.

Their main drawback is that it can take some time to learn this platform properly, so it has a complex learning curve, especially when creating advanced workflow using or even data for event setting up more complex customer journeys for basic campaigns. This platform is manageable to get the full value of its capabilities, but for a complex campaign, understanding the segmentation, triggering and data structure are bit complex. Their pricing is also a bit on a larger scale when lead base increases. Review collected by and hosted on G2.com.

I rely on Customer.io to bring customer messaging together and give us a unified view of user activity. I like that it supports an unlimited volume of incoming events without restrictive tiered caps or throttling penalties. Review collected by and hosted on G2.com.

My main frustration is the targeting and segmentation limitations, especially when filtering against complex event histories and message engagement interactions. Review collected by and hosted on G2.com.

The user interface is impressively straightforward, and the controls feel intuitive, giving a clear overview of the essential tools. I also found that setting up connections with our existing software stack worked smoothly and without much hassle. Review collected by and hosted on G2.com.

We ran into an unexpected hurdle with per-minute email limits, which disrupted our voucher code campaign. I also find it frustrating that we can’t manage WhatsApp messages natively; having to rely on a third-party bridge like Twilio is time-consuming and adds extra steps to the process. Review collected by and hosted on G2.com.

The interface is very intuitive and took me less than a day to understand and start running campaigns. The segmentation and attribute features are very helpful and they can accommodate everything we need to store the details. Review collected by and hosted on G2.com.

They do not have an in-build web push notification feature. We have to use a 3rd party vendor and use their webhook to push these notifications. Review collected by and hosted on G2.com.

I like the campaign-level reporting roll-up and central creative asset library. I can inspect individual channels separately and see their aggregated performance within a broader multi-channel campaign, which gives us complete visibility. Review collected by and hosted on G2.com.

My main complaint is that SMS doesn’t offer the same robust delivery reporting or deep conversion tracking as email in Customer.io. Review collected by and hosted on G2.com.

I like how Customer.io pairs with Salesforce to execute email campaigns over extended periods and neatly tracks data. The great AI assistant makes it easy to use. I find it easy to visually see and understand campaigns, which is really helpful. I also appreciate the ability to make segments of customer profiles. The setup was easy, and I'm getting the hang of it with good use. Review collected by and hosted on G2.com.

On the campaigns, I would like to scroll with my mouse by clicking and moving on the screen. Now I need to zoom in and out and have to move sliding toggles on the right and bottom. Also, I'd prefer a more digital-friendly way of making emails, similar to Canva, where you can move, drag, and drop features rather than needing fancy code or graphic design experience. Review collected by and hosted on G2.com.

It’s the best choice if you have a complex product and want to send messages that actually feel personal and timely , rather than just "blasting" a list. It rewards you for having good data. Review collected by and hosted on G2.com.

The learning curve is pretty steep if you aren't tech-savvy, and the pricing can get really expensive as your user list grows. Review collected by and hosted on G2.com.

the thing that actually changed how i use it is realizing customer.io thinks in events, not campaigns. i came from mailchimp and kept trying to do the same thing, make a list, schedule a blast. it kept fighting me until that clicked.

now i can say: when a user creates their second project but hasn't invited a teammate in 48 hours, send this email. that level of precision would have taken me three tools before.

the journey builder took about two weeks to get comfortable with. the "wait until" block is the one i use most, it holds a message until a condition is true instead of just waiting a fixed number of days. replaced two zaps i had running just with that.

liquid templating felt intimidating at first but the docs are genuinely good. once you get the syntax down you can pull in things like a user's last active feature directly into the email copy. makes a big difference in how the message lands.

support is solid. asked a question about suppression lists late at night, had a real answer by morning that actually referenced my account setup. not a template. Review collected by and hosted on G2.com.

pricing caught us off guard. grew past the 5,000 profile tier in about 3 months and the next tier was a big jump. felt like there should be something in between for where we were at that point.

the email editor is my least favourite part. it works but it always feels a step behind klaviyo or beehiiv. i ended up designing in figma and hand coding templates through parcel which is their separate email editor. it works but its extra steps every time.

the bigger issue if you're a solo marketer is the setup. customer.io is api-first which means someone has to actually instrument your product events properly. when our dev was stuck in a sprint i was basically blocked for two weeks on the onboarding flow i had planned. nothing i could do until he was free.

if you don't have a developer available when you're getting started, factor that in before you commit. Review collected by and hosted on G2.com.