--- title: "Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra" description: "Is Customer.io the right Marketing Automation solution for you? Explore 87 verified user reviews from people in industries like yours to make a confident choice." source_url: "https://bx-capterra-9jkl9g9y3-g2dm.vercel.app/p/174023/Customer-io/reviews/" page_type: "reviews" language: "en" --- Customer.io 4.7 (87) [View alternatives](https://www.capterra.com/p/174023/Customer-io/alternatives/) 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 July 21st, 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 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 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 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 Rd Rahul d CRM & digital campaign managerHospital & Health Care, 1,001 - 5,000 employeesUsed the software for: 6-12 months. “User interface bit tricky to get used too with it“ August 3, 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/)[Manago AI](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 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, Customer.io 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. Customer.io 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 Customer.io 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 Customer.io 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 Customer.io 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 Customer.io 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. Customer.io 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 Customer.io 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/) Customer.io 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 KS Katie S. Operations Manager Leisure, Travel & Tourism Used the software for: I used a free trial ### "Powerful and flexible messaging platform for those ready to invest the time" August 25, 2025 5.0 Customer.io is a powerful marketing automation platform. It lets us build data‑driven campaigns across email, SMS, push, and more with fine control and smart triggers. It’s reliable and scalable, though it takes effort to master, and pricing can be steep for newcomers. Pros Customer.io gives us complete control over messaging, email, SMS, push, in‑app, with smart workflows and segmentation based on real behavior. It’s configurable, reliable, and great for personalized customer journeys Cons The UI can feel overwhelming at first, especially for non‑technical users, searching for past messages or editing templates isn’t intuitive. Also, pricing and support has room to improve for smaller teams. Review Source RB Rachelle B. Product Manager Computer Software Used the software for: 2+ years ### "customer.io for saas" June 5, 2023 5.0 Pros customer.io is easy to use and very versatile. It has met all of our email marketing needs for both our web and mobile app. Cons customer.io has a bit of a learning curve at first with some of the advanced/pro features like customizing email messages, deploying api triggered messages, etc.... but the interface is very easy to use and when I had questions I could always get a hold of support for help. Review Source LH Lucie H. Outreach Manager Sports Used the software for: 6-12 months ### "Customer.io for Weekly Newsletters " December 23, 2021 5.0 Overall, very happy with the user experience. It’s saved me a lot of time in developing our newsletter. Pros I love using Customer.io for our weekly newsletters because it allows me to replicate the same format each week. This saves me time each week because I can just make individual tweaks to content each time, rather than having to redo the entire process. I also appreciate the metrics on open and click rate, to know what content sparks our audience’s attention and what doesn’t hit so strongly. Cons I don’t like that it is difficult to copy a message from one “workspaces” to the next. I wish there was a possibility to duplicate a template across workspaces without having to recreate the whole thing. We use different workspaces to separate different audiences, but often want to send them similar emails. Review Source SD Steve D. Web Developer Information Technology and Services Used the software for: Less than 6 months ### "Simple, powerful and intuitive marketing automation platform" June 12, 2023 5.0 Pros The customer service is superb. There was a learning curve to customer.io which customer service helped me with. Cons There are no features of customer.io I dislike Review Source JB James B. Founder Computer Software Used the software for: 6-12 months ### "Amazing and must-have product for startups!!!" June 5, 2023 5.0 Pros I'm kn the startup plan, and this product is an absolute requirement in my toolbelt. If Customer.io went away I would ne lost 🥹🥹🥹. Cons Nothing. This product is completely amazing lol. Alternatives considered [Outreach](https://www.capterra.com/p/159318/Outreach/) Reason for choosing Customer.io The Startup Plan is amazing Review Source PP Paola P. Sales Dep Used the software for: 6-12 months ### "A flexible and customizable tool that is easy to use and set up" May 1, 2018 5.0 This is an amazing tool that everyone looking to take their marketing efforts to the next level should get familiar with. Pros The flexibility that Customer.io offers, I yet have not been able to see in any other tool. It is very easy to set up and its lightweight user interface is robust yet simple to understand. On top of it, customer support rocks! I was answered right away for every little question that came up, so I didn't feel alone while working to set everything to my requirements. As for the features, I love the customer profiles: They are based on the email behavior of the users, and can also be adapted to match in-app behavior, if that's what you require. On top of it all, I love the price! Great value for the money. Cons I did need to triangulate some functions through Zapier because the tool did not offer them, such as gmail integration and Facebook triggers. Not sure if this is a con though, as Zapier does open up a whole new landscape of possibilities, but I guess those functions were not initially included in the tool so that's why I'm talking about them in this section. Other than that, no cons. Review Source CB Christie B. Head of Product Hospital & Health Care Used the software for: 1-2 years ### "Would recommend for other health tech start ups" May 31, 2023 4.0 Pros Easy to use! SSO is great. Very user friendly and support is very kind. Cons The HIPAA version was very expensive to sign for a small start up 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 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 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. Similar Products Featured ## 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.