# Page 3 | Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra > Page 3 - Is Customer.io the right Customer Data Platform solution for you? Explore 87 verified user reviews from people in industries like yours to make a confident choice. Source: https://www.capterra.com/p/174023/Customer-io/reviews --- Customer.io 4.7 (87) Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Learn more](https://www.capterra.com/our-story/) * * * Last updated March 13th, 2026 # Page 3 - Reviews of Customer.io ## Showing most helpful reviews Showing 51-75 of 87 Reviews Sort by: Most Helpful Rating Company Size Reviewer's Role Length of Use Frequency of Use VR Verified Reviewer Founder & CEO Computer Software Used the software for: 6-12 months ### "This is my main email platform now" June 3, 2023 5.0 Pros Customer.io is an excellent email marketing platform. I made the switch from a lesser-known (and cheaper) platform that I had been using for a few years. I can clearly see the difference now, and I'm happy to pay more for the ability to engage my customers more effectively and access a wider range of marketing features, all in one place. Cons Customer.io is not yet the ideal platform for my projects. One limitation, for instance, is its restricted template language.It also lacks the ability to filter and count incoming events and dynamically insert these values into emails. Review Source VR Verified Reviewer Growth Manager Information Technology and Services Used the software for: 2+ years ### "The best product for email marketing" June 5, 2023 5.0 Pros It is very easy to use and the features are very intuitive. Cons Can't think of any. But i wish they could launch new product features faster Review Source VR Verified Reviewer Growth Information Technology and Services Used the software for: 1-2 years ### "A Great Marketing Automation Platform with an amazing support team" December 30, 2022 5.0 We are mainly using C.io for lead nurturing purposes. We are quite confident with the fact they will improve their product with better reporting features. Pros I've tried many marketing automation tools and Customer.io is clearly making a difference in terms of UX, documentation, and customer support! Cons It can be quite complex sometimes according to your needs but thanks to their great UX, documentation, and support team, you'll find solutions. There are some missing features (eg. cohort analysis) but hopefully, they are working on it. Switched from [SendGrid](https://www.capterra.com/p/204113/SendGrid/) We needed a tool with true Marketing Automation Platform features. Review Source CT Carl T. CTO Information Services Used the software for: 1-2 years ### "Customer.io is the best for startups to small & mid-size companies... maybe even more." May 30, 2023 5.0 Pros Easy to setup, easy to use. No constraints (unlimited comms, events, properties). Loaded with great features. Affordable for small companies. Great support. Cons Got a hard time setting up a couple features, but support is very responsive and got this done quickly. Otherwise, nothing really. Reason for choosing Customer.io Price, Feature set Review Source LH Ludwig H. Product manager Internet Used the software for: 2+ years ### "Best customer engagement tool" June 27, 2023 5.0 Pros Possible to make super complex flows. Pretty much replaces doing everything custom in our backend. Cons Nothing to dislike really. A bit complicated to use for new users, but probably because it's so powerful. Review Source VR Verified Reviewer Director of Marketing Financial Services Used the software for: 2+ years ### "Flexible but lacking some functionality" May 16, 2018 5.0 Pros Good user interface that's intuitive. Easy to get up and running without prior knowledge. Creating segments is quick and simple. Cons Reporting tools are not very robust. For example, within Customer.io you can't sort or aggregate email campaigns to see roll-up metrics. Rather you'll need to export and sort in a spreadsheet or connect with 3rd party tools like MixPanel or Periscope. Review Source NM Nessim M. Head of Marketing Marketing and Advertising Used the software for: 2+ years ### "Great Tool for Marketing Automation" September 16, 2022 5.0 Great tool. Not made for beginners but if you are willing to spend time on masterising, I highly recommend. I have been using it in several companies for the past 5 years. Pros \- Easy to use - Integrate with Segment - Constant updates Cons \- Could be complicated if it's your first Marketing Automation tool but you get the hand of it quickly Alternatives considered [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) Review Source Max V. Head of Growth Information Technology and Services Used the software for: 6-12 months ### "The perfect platform to set up product-driven email communications with customers at scale" July 11, 2019 5.0 What I really like is that we use our own database as the single source of truth, and not the email platform database which is never up to date. With Customer.io we use real-time data from our own platform (B2B SaaS) which helps me as a marketer to always communicate with customer segments in the best possible way. Customer.io provide lots of options to filter based on segments and rules which comes in very handy when you want to create cool workflows. Overall, extremely happy with the platform. Pros Easy-to-use and intuitive email and marketing automation platform. Especially the ability to send out webhooks makes it very strong. Cons The initial set up requires some help from a developer but if you have that sorted out, it's really easy to use. Review Source JW Joanne W. Marketing Manager Telecommunications Used the software for: Less than 6 months ### "Customer.io has changed our marketing processes for the better" January 9, 2023 5.0 Its been so easy, \[purchase, set up and launching I cant complain at all. Pros I like you can easily integrate with other platforms, with the open API makes it so very easy! Cons Nothing! It has just been amazing, I love this software Alternatives considered [Zoho CRM](https://www.capterra.com/p/155928/Zoho-CRM/)[ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[Marketo Engage](https://www.capterra.com/p/75130/Marketo-Lead-Management/) Reason for choosing Customer.io Cost, had every feature we wanted, easy to use, scalable. We have over 10,000,000 contacts and the other systems couldn't handle that easily. Switched from [HubSpot CRM](https://www.capterra.com/p/152373/HubSpot-CRM/) HubSpot was just cumbersome, not easy to use, could not integrate with our other email sender and was so very expensive. Review Source EE Eduardo E. Product Financial Services Used the software for: 2+ years ### "Overall great " June 16, 2023 5.0 Pros The ease of use and the flexibility it provides Cons Sometimes the integration process can be a bit cumbersome. Review Source John S. Social Media Consultant Marketing and Advertising Used the software for: I used a free trial ### "A powerful platform that allows businesses to automate and personalize their customer communication." February 18, 2023 4.0 Customer.io is a powerful tool that offers many benefits for businesses looking to automate and personalize their customer communication. Pros One of the biggest pros of using Customer.io is the ease with which you can set up and automate email campaigns. The platform offers a drag-and-drop interface that makes it easy to create customized campaigns without needing to know how to code. Additionally, Customer.io offers a variety of templates to choose from, which can save time and simplify the process.Another pro of using Customer.io is the level of customization available. Businesses can create highly specific customer segments based on behavior, demographics, and other factors. This allows businesses to target their messages to specific groups of customers and tailor their campaigns accordingly. Cons One of the main issues is the learning curve. While the platform is relatively easy to use, there is still a lot to learn in order to make the most of its features. Additionally, the pricing can be steep for small businesses, which could make it less accessible.Another potential downside is that Customer.io is focused primarily on email marketing, which means that businesses may need to use additional tools to cover other communication channels like social media or SMS. Review Source SP Sarah P. Digital Marketing Intern Financial Services Used the software for: 6-12 months ### "Good for segmentation and all forms of email, SMS, and push notification campaigns" July 13, 2022 4.0 Pros I like how the drip campaigns are very simple to set up and implement. The segmentation tool helps to identify which customers to put into these campaigns and when they should exit the campaign. Cons I like how easy it is to build emails, though there could be better design/templates for this. Additionally, setting up segments might be confusing for someone without a data background, which I have. Review Source Kate B. Content Marketing Manager Computer Software Used the software for: 6-12 months ### "Wonderful for Transactional Emails, Not as Great for Email Marketing" January 14, 2022 5.0 Overall, I think all our issues with the platform are because of the way we initially set it up. Customer.io has now added new functionality that fixes most of the issues we've had. They're doing a great job of listening to customers and amending their roadmap accordingly. Overall, think it's got a bright future. Pros My favorite thing is that they recently added functionality to remove duplicate email addresses from sends. Thank goodness! Cons Segmentation is tough. And we set up our account based on customer ID so we have kind of a data mess in there (multiple accounts with the same email address). But as long as you're using it as intended, for customer communications, it's perfect. Review Source Francisco B. retail sales Information Technology and Services Used the software for: 1-2 years ### "YOUR PARTNER TO COMMUNICATE WITH YOUR DIRECT CUSTOMERS." August 11, 2019 4.0 I have had an excellent customer experience, thanks to it I keep up to date the list of clients I work with, communicate with them through personalized messages and thus be able to meet our customers. Pros I have been using this tool for several years to communicate with my clients, I am encouraged to use it because thanks to it I can send the newsletters and emails automatically to each client group depending on the profile, it is special to maintain a continuous communication with users , make them feel that we care and that communication is essential. Cons It is a very good communication tool, however customer service is poor, attention is very slow and the response to the requirements as well. Review Source PH Paul H. Head of Customer Marketing Success Financial Services Used the software for: 1-2 years ### "Customer.io is great! Customer service from our vendor is awesome too!" January 13, 2023 5.0 Very happy Pros It just does all of the things I need it to do and most are intuitive. Cons Sometimes there's weird quirks that you have to learn and figure out, but its not frequently. Review Source JR James R. Application Support Analyst Used the software for: 1-2 years ### "Customer.IO makes life so much easier with email tracking, Saved my butt multiple times!" June 25, 2018 5.0 Pros Customer.IO has allowed me and my company to feel confident that the correct information is being sent to the people who need it the most, our customers. The ability to view all emails that have been sent and to ensure they were received by the customer is a huge benefit to us. being able to see if a email was suppressed or bounce give the ability to ensure you can deal with the issue in a timely manner and get the info into the right peoples hands. it has also assisted us in dealing with difficult customers that claim they never received a email, however the application allowed us to show the customer that no only did they receive it they opened it! Cons the only negative i could see is that the application only allows you to send 50 emails at a time and for a large customer base this makes it more time consuming. Review Source BE Bryson E. eCommerce Coordinator Consumer Electronics Used the software for: 6-12 months ### "Providing Unique Customer Interactions for Business" March 26, 2018 5.0 A highly efficient setup for automating emails to our customers. This individualized attention has vastly improved our relationship with our customers. They feel front and center and we save hours of time! Pros This software has been easy to use for setting up customer emails that are specifically targeted to their individual needs. Conversion tracking and other metrics for analyzing customer behavior are helpful for our team and its insights into what our customers want throughout their lifecycle journey. This software streamlines the process that would take hours upon hours of tedious work. This is a highly efficient tool to solve complex problems. Cons I think that one of the cons would be pricing. If pricing wasn't as steep for larger customer lists, this platform would be preferable. Review Source OT Olivia T. Content Marketing Manager Marketing and Advertising Used the software for: 6-12 months ### "Easy-to-use tool for personalized communication" March 9, 2023 4.0 Pros Using customer.io helped us create personalized messages to our clients based on what their job positions. The website is easy to use and the support team is really helpful. Cons Sometimes it's hard to understand their pricing schemes and some of the features are only available if you pay more. Also, the reporting could be more detailed Review Source Rahil M. Marketing Associate Information Technology and Services Used the software for: 6-12 months ### "Automate your marketing campaigns with ease" April 17, 2019 5.0 An excellent tool for Automated Marketing campaigns and the product and support teams are extremely helpful Pros \- Customer profile management - Hybrid HTML and Text Editor tool - Workflow set-up for Campaigns Cons Uploading Customer lists manually is slightly complicated Review Source VR Verified Reviewer Head of Marketing Information Technology and Services Used the software for: 6-12 months ### "Monthly contracts can't be downgraded" March 31, 2023 4.0 Unfortunately, can't recommend Pros Customer.io is a pretty good, capable tool. Easy to get data in and easy to create communications and journeys for your customers. Cons I pay monthly and they will not allow me to right-size my usage to a lower amount until a year has elapsed. Really odd. Review Source Chris V. President Design Used the software for: 2+ years ### "An awesome way to connect with customers" April 11, 2018 5.0 Pros When we build new apps or startup prototypes for clients, Customer.io is one of the most reliable tools in our stack. It makes customer communication SO easy and intuitive, allowing you to easily group customers into segments, trigger communications based on specific events, etc. The API is easy to use too, and makes it really easy to integrate with your app at a deep level. I couldn't imagine life without it! Cons The only real complaint is pricing. If you are bootstrapping and don't have a ton of money to spend, it can be pretty prohibitive. Review Source VR Verified Reviewer Sr Salesforce Manager Insurance Used the software for: Less than 6 months ### "Great starter Marketing software" January 21, 2022 5.0 Pros In using customer.io it is easy to use and setup for your business. It has a wide range of features and easy to use templates. Cons The lack of native integrations to CRMs is a big negative but they do work with integration tools like Zapier. Review Source SW Sebastian W. VP Marketing Insurance Used the software for: 1-2 years ### "Top Email and Push automation software" April 22, 2019 5.0 Overall great email and push notification automation software, that constantly develops. Pros Customer.io is great since it easily allows you to set up and automate promotional emails , but also allows to run transactional emails at the same time. This is a huge advantage over most email automation products, b/c you can trigger a promotional email without interfering with your system emails. Cons Unlike Pardot or Marketo, Customer.io doesn't have a solid automation builder. The builder is nice, but you can never see the tree of emails in a flow chart. It can easily confuse the user as you have to have a third-party software to organize the set up. It's highly recommended to put one full-time employee behind it. Review Source VR Verified Reviewer CEO Marketing and Advertising Used the software for: Less than 6 months ### "We were looking to migrate off of a superglued-tools situation and Customer.io was the solution" February 10, 2021 5.0 We were looking for a solution that could improve our customer success goals and reduce churn. Customer.io delivers as the go-to platform in this category. Pros We were using an email service provider and a Figma design file to manage and sync our customer messaging flows. We needed a proper solution, so we compared a lot of companies, and Customer.io seemed to be the most reputable. Cons The hurdle to learn and use the platform was a bit high, and there were areas of UX that could have used some improvement. But at the end, the platform is so quick and now as we are used to it, it does exactly what we need it to do. Alternatives considered [Userlist](https://www.capterra.com/p/209961/Userlist/) Review Source SG Stephanie G. Sales Transportation/Trucking/Railroad Used the software for: 2+ years ### "Great Software" February 25, 2019 5.0 Pros I love customer.io! It keeps our company organized and allows us to send emails easily. Cons Nothing! Everything has been very easy to use. Review Source Talk to a Capterra advisor for free and get results within 15 minutes.