# Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra > 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 # Reviews of Customer.io Ease of use 4.3 Customer Service 4.5 ## Pros and Cons in Reviews KS Katie S Operations ManagerLeisure, Travel & Tourism, 11 - 50 employeesUsed the software for: I used a free trial. “It lets us build data‑driven campaigns across email, SMS, push, and more with fine control and smart triggers.“ August 25, 2025 KS Katie S Operations ManagerLeisure, Travel & Tourism, 11 - 50 employeesUsed the software for: I used a free trial. “The UI can feel overwhelming at first, especially for non‑technical users, searching for past messages or editing templates isn’t intuitive.“ August 25, 2025 Aifton C Marketing ManagerFood & Beverages, 51 - 200 employeesUsed the software for: 6-12 months. “Easy to learn the platform and schedule new email blasts and segment the sends to different audiences.“ January 11, 2026 PP Paul P Head of EngineeringFinancial Services, 51 - 200 employeesUsed the software for: 1-2 years. “Very performant, highly configurable, but not the easiest UI for maintenance, configuration, or searching“ July 30, 2025 Joana C Customer Operations SpecialistComputer Software, 11 - 50 employeesUsed the software for: 6-12 months. “I particularly like the “draft” option to test campaigns I've just set up and made live and that we're able to integrate with other data platforms, that enrich our trigger and filter capabilities.“ May 31, 2023 AU Andrey U Founder & CEOComputer Software, 2 - 10 employeesUsed the software for: 6-12 months. “It also lacks the ability to filter and count incoming events and dynamically insert these values into emails.“ June 3, 2023 Leana Y Vp of MarketingComputer Software, 11 - 50 employeesUsed the software for: 1-2 years. “It was easy for our developers to connect Customer Io into our platform.“ May 30, 2025 FS Fin S Head of ProductFacilities Services, 2 - 10 employeesUsed the software for: Less than 6 months. “Customer profiles can be difficult to manually add and remove from marketing segments“ May 30, 2023 ## Showing most helpful reviews Showing 1-25 of 87 Reviews Sort by: Most Helpful Rating Company Size Reviewer's Role Length of Use Frequency of Use Joana C. Customer Operations Specialist Computer Software Used the software for: 6-12 months ### "Complete feature-set and excellent support" May 31, 2023 5.0 Pros Even though at first it might have a longer learning curve (because there are several functionalities we can make use of), I think it compensates having the ability to create complex workflows for email campaigns: there are several functionalities available, and we're always able to create the flows we ideate. I particularly like the “draft” option to test campaigns I've just set up and made live and that we're able to integrate with other data platforms, that enrich our trigger and filter capabilities.Excellent customer support. Even though we're not on the Premium plan, any of the queries we submit are answered within 24 hours and have detailed explanations or workarounds for the issues presented.They also have interesting webinars from time to time, with quite specific topics and tips. Cons Unfortunately, we're unable to move a contact manually within a workflow; which is particularly important for exceptional cases that we might want to override the rules because of a human or sync error. Another feature I'd like to have (but also seems to be missing from most similar tools), is the ability to have custom reports – though I wouldn't need this very often, thus it's not a dealbreaker at this point.The pricing is somewhat expensive, and we're not able to temporarily downgrade the plan (if by any chance our business has a seasonality). Alternatives considered [ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/)[Sender](https://www.capterra.com/p/139770/SENDER/)[SALESmanago Marketing Automation](https://www.capterra.com/p/223643/SALESmanago-Marketing-Automation/)[SendGrid](https://www.capterra.com/p/204113/SendGrid/)[Drip](https://www.capterra.com/p/164933/Drip/) Reason for choosing Customer.io had more functionalities and/or better deliverability rate than GetResponse, Sender, Omnisend and Drip. It had also much better support than Sendgrid. It was less expensive than Salesmanago, Mailchimp and ActiveCampaign, though these options seemed also very complete and with excellent support. Mailjet was close when taking the final decision, as it also served well our needs and would be cheaper; that would be most likely our plan B. Finally, Intercom was also considered, but we ended up discarding the option as there was no specific email marketing plan. The functionality is available, but ends up not having a competitive price at all. Review Source NM Noga M. VP, Marketing Financial Services Used the software for: 1-2 years ### "Great product, not the cheapest though " October 2, 2025 5.0 The UI/UX was very user friendly and easy to use. You don't need any special training in order to be able to build sophisticated flows. Pros As a brand that has both a website and an app, combined everything we needed to send customer journey messages across various channels: Push, in-app, email, and sms. Cons The pricing model didn't make sense for our growing company, as you pay for all the contacts in your account, regardless of if they're active or not. Alternatives considered [Braze](https://www.capterra.com/p/155423/Appboy/) Reason for choosing Customer.io The offered competitive pricing which fit our startup company Switched from [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) Klaviyo did not have push and in-app which we needed since we launched an app Review Source SN Suzan N. Growth Marketeer Retail Used the software for: 6-12 months ### "Good service, interface somehow difficult and less user friendly than other systems " January 16, 2023 3.0 Good Pros Great and quick customer service, broadcast function works well Cons The data functions and the somehow difficult interface of campaigns and flow-building Reason for choosing Customer.io Wasn't my personal choice Review Source VR Verified Reviewer Vp of Marketing Computer Software Used the software for: 1-2 years ### "Super easy to setup" May 30, 2025 4.0 Pros Low cost, good automation and search options. UI looks good, and no one on my team needed to look at documentation to use it. It was easy for our developers to connect Customer Io into our platform. Cons I feel like Keap does everything they do a bit better in terms of customizing options for a lower price. That being said Customer Io does look better and is easier to use. Switched from [Mailchimp](https://www.capterra.com/p/110228/MailChimp/) MailChimp was great for sending emails with nice templates, but the automation functions were very limiting. Review Source Orian R. Growth Director Computer & Network Security Used the software for: 1-2 years ### "Modern marketing automation platform with powerful data integration capabilities" June 5, 2023 5.0 Pros As a SaaS company, product data integration was a key decision factor when picking our MAP. was by far the best at leveraging product data in emails and became a key part of our workflow to detect and activate leads from Product. Cons The initial setup was quite complex because of what we wanted to do, but the Customer Success rep was very helpful. Alternatives considered [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/)[ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/) Reason for choosing Customer.io Data integration capabilities and a pricing structure that worked with our metrics. Switched from [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) We wanted to go for a "best of breed" approach and did not need most Hubspot for Marketing capabilities. Also, data integration. Review Source Cagri S. Growth Marketing and Operations Manager Transportation/Trucking/Railroad Used the software for: 1-2 years ### "Efficient and Comprehensive, but a bit Pricy" July 3, 2023 5.0 We started using for behavioral emails and SMS messages. We're gradually moving transactional messages to Customer.io as well. Pros Very easy to set up and manage. The visual workflow builder, webhooks, integrations, and API are my favorite. Cons It's a bit expensive, especially if you have too many users, since bills you based on the number of customers available in your account. Alternatives considered [Leanplum](https://www.capterra.com/p/155165/Leanplum/) Reason for choosing Customer.io We started using it with the startup program and then loved it! Switched from [OneSignal](https://www.capterra.com/p/163452/OneSignal/) Because OneSignal doesn't have proper email and SMS marketing capabilities. Review Source Arnaud B. Co-Founder & CEO Computer Software Used the software for: 6-12 months ### "The best email marketing tool for SaaS but expensive" August 17, 2023 5.0 Pros is the Klavyo of email marketing sequences but for SaaS businesses in my opinion. We had a great experience with the software and it brought us great open rates once you have set up custom domain tracking. It's very easy to use as well for how complex the software is. Cons Frankly everything was great except the pricing which is a bit expensive when you're starting out. They have a free plan for 6 months but then it's a big jump from free to paid, wish they had an intermediate plan at the time. It made us considering other choices. Alternatives considered [SendGrid](https://www.capterra.com/p/204113/SendGrid/) Reason for choosing Customer.io I chose because it was more adapted to SaaS softwares. Review Source VR Verified Reviewer Data Marketing Storyteller Marketing and Advertising Used the software for: 6-12 months ### "A very useful tool for non-developer, tech-savvy marketers" August 13, 2019 5.0 I've tried many marketing automation tools and this hits the spot in terms of what a tech-savvy non-developer can do. There's a fine line between an eye-candy platform that scores low on customization and a fully fledged tool that requires constant support from a developer. walks that line gracefully, allowing me to control onboarding and loyalty processes and much more. Pros I like that I have yet to hit its limitations. Usually if a feature isn't readily available, the platform is open enough for me to find a workaround that gets the job done. Kudos for customer support, a real win! :) Cons It could use more or better filtering and search options, as the segments, campaigns and attributes can turn into chaos if multiple people use it for different purposes. The learning curve was a bit steep. Except for the quite useful knowledge base and great customer support, I would have enjoyed some video tutorials/onboarding experience. Switched from [Campaign Monitor by Marigold](https://www.capterra.com/p/76928/Campaign-Monitor/) Not enough customization available, more focused on the design than the workflow. Review Source VR Verified Reviewer Co-Founder and Business Development Information Technology and Services Used the software for: 6-12 months ### "Great product " June 25, 2022 5.0 Pros is very catered towards SAAS products like ours. Very easy to integrate our data sources like Segment, and simple to get attributes and events. Perfect for running onboarding campaign or lead nurturing campaign. It's the most simple to use product compared to everything else I've tried. Dashboard is also very fast despite a lot of data. Not clunky at all. This lets me create and send campaigns in a much shorter time. Cons Quite a bit of jargons in the dashboard, which can be a little confusing. It'll be great if there's more explanation on certain features. Easy to overlook some of their outstanding features because they are hidden. Switched from [ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/) is much easier to use, and interface was much faster. ActiveCampaign was very slow and clunky in comparison. Review Source PP Paul P. Head of Engineering Financial Services Used the software for: 1-2 years ### "Powerful if you invest a lot of time into learning the UI" July 30, 2025 5.0 Very performant, highly configurable, but not the easiest UI for maintenance, configuration, or searching Pros Very configurable, good tracking of comms, including Human vs Machine Opened statuses on emails. Very reliable Cons It can be difficult to search for specific emails as the UI is not the most intuitive, especially for new users. Template editing is also not straightforward for non-power-users. Review Source FM François M. Marketing Manager Business Supplies and Equipment Used the software for: 6-12 months ### "One of the best for marketing & communication" December 31, 2024 5.0 I use it to manage email marketing for a multilingual e-commerce site. We have different dedicated areas on to manage the different languages. We use it mainly to send newsletters, and for the automation system, sending targeted emails to our prospects. Pros Its complete environment, allowing you to perform all your marketing, newsletter and scripting tasks with ease Everything is fluid and clear, making it easy to use Cons Perhaps the campaign model is a little more complicated to learn, but on the whole it's a complete and reliable system Review Source AW Artur W. Marketing Manager Entertainment Used the software for: 1-2 years ### "A solid product for companies that need something more!" June 28, 2023 5.0 Pros \- lots of needful integrations, e.g. BigQuery, Google Sheets- a simple to use, yet highly sophisticated tool for Email Marketing and Marketing Automation- Push notifications support- in-app messages support- webhooks - possibility of advanced segmentation of users by their attributes and behavior Cons \- slightly limited drang&drop email editor Review Source AIÖ Ali Ilhami Ö. Co-founder, head of product Computer Software Used the software for: 6-12 months ### "A game changer" June 5, 2023 5.0 Pros We love to be able to act based on everything that our customers do on our platform and our website. Campaign workflows are easy to build and maintain and UI is very intuitive. Cons We basically manage all our customer data in C.io and not being able to having KPIs and analytics related with customer actions and events is a little bit frustrating. Review Source 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 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 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 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 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 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 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 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 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 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 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 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 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. 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 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 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 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 AD Alessandra D. Marketing & Communications Specialist Financial Services Used the software for: 2+ years ### "The best emailing platform I've ever used" June 5, 2023 5.0 5 starts Pros It's so easy to use, their sales and support team is the absolute best, and their features are way above average. Cons Nothing, I love it. I wouldn't change anything. Review Source VR Verified Reviewer Associate Program Lead Information Technology and Services Used the software for: 6-12 months ### "An Advanced CLM tool" May 3, 2019 5.0 Pros \- The Features and customizations available Cons \- The complications to bring about the automation. Review Source VR Verified Reviewer Marketing Associate Information Technology and Services Used the software for: Less than 6 months ### "Comprehensive Email Marketing tool" May 25, 2020 4.0 Great to build and send automated campaigns. Can improve its usability in sending bulk emails. Pros It is a really detailed tool. Found it very useful to send out multiple emails in a flow. Allows you to create a workflow through which you can plan the email sent to customers. You can even put conditions to send it to specific users. Provides a number of integration options with other tools to interconnect the entire process. Cons As I mainly use it to build and send emails. The creating emails part does get tedious at times. The drag and drop builder isn't the easiest to use. It also has a limited amount of templates Review Source Response from Customer.io June 10, 2020 Thank you for your feedback! We'd love to hear what additional email templates you'd find helpful. Can you email lj@customer.io with the details and LJ from our Product team will follow up with you. ## Send me user reviews about this product ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox. Talk to a Capterra advisor for free and get results within 15 minutes.