--- title: Customer.io Reviews meta\_title: 'Customer.io Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 895 reviews by the users' company size, role or industry to find out how Customer.io works for a business like yours. aggregate\_rating: rating\_value: 4.4 review\_count: 895 scale: '5' date\_modified: '2026-08-11' parent\_category: name: Marketing url: https://www.g2.com/categories/marketing --- # Customer.io Reviews & Product Details Visit Website Customer.io is the leading customer engagement platform for product-led organizations. Engage users based on real behavior and build stronger customer relationships across email, SMS, push, in-app, and webhooks. Now with an intuitive AI agent that handles the repetitive work, your team can focus on timing, strategy, and getting more impact from every message. * * * Product Website Customer.io Seller [Customer.io](https://www.g2.com/sellers/customer-io) Discussions [Customer.io Community](https://www.g2.com/products/customer-io/discuss) Languages Supported English Solution Type All-in-One Overview by James Newman Show More ## Pricing Pricing provided by Customer.io. ### Essentials Starting at $100.00 Per Month [ View More Pricing Information ](https://www.g2.com/products/customer-io/pricing) ## Customer.io Integrations (61) What do users say about integrations? 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](https://www.g2.com/products/zendesk-for-customer-service/reviews) Show More ![Darshan P.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Darshan P.") DP Darshan P. Senior Software Engineer Mid-Market (51-1000 emp.) 5/13/2026 "Personal, Timely Messaging for Complex Products" 5/5 What do you like best about Customer.io? 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. What do you dislike about Customer.io? 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. What problems is Customer.io solving and how is that benefiting you? It solves the problem of "robotic" automation by letting us trigger messages based on what users actually do in our app, not just a set schedule. This benefits us because we can send super relevant, personalized messages at scale without needing a developer to hard-code every single campaign. and good for website tracking and user handling Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ![Darshan R.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Darshan R.") DR Darshan R. Sales Development Representative Computer Software Small-Business (50 or fewer emp.) 5/13/2026 "Not for everyone, but exactly right for us" 4.5/5 What do you like best about Customer.io? 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. What do you dislike about Customer.io? 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. What problems is Customer.io solving and how is that benefiting you? before customer.io we were sending emails on a schedule with no connection to what users were actually doing. someone who activated on day 1 and someone who never touched the product after signing up got the exact same onboarding sequence, just at different times. embarrassing to think about now. now someone who completes a key action skips the email explaining how to do that thing and jumps to the next relevant step. onboarding completion went up and unsubscribes on the sequence dropped because people stopped getting emails that had nothing to do with where they were. we also use it for churn signals. if a user goes from daily activity to nothing for 7 days a workflow fires and drops a flag in slack for the cs team. we've had a few saves from that already. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Financial Services](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Financial Services") UF Verified User in Financial Services Mid-Market (51-1000 emp.) 2/19/2025 "Very user-friendly platform" 5/5 What do you like best about Customer.io? It’s a very user-friendly platform that allows users to manage automated journeys and create email templates without needing technical skills. It also includes AI tools that support QA for journeys and campaign templates. The drag-and-drop email template builder makes it easy to build campaigns efficiently and reduces the need to constantly cross-check how templates render across different screens. I also like that this feature has now been released for in-app messages as well, which is great. Review collected by and hosted on G2.com. What do you dislike about Customer.io? I wish I could track SMS deliveries and opt-outs directly within CIO. I also wish it were easier to compare campaign and journey performance within the platform. Finally, I’d like access to additional contact behaviour insights and more detailed campaign analytics, which could also potentially enable the creation of more advanced segments directly within the platform. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? Customer.io has been a strong platform for managing and optimising customer communications across multiple channels. Standout features for me include the easy drag-and-drop email template builder, seamless Slack integration for internal notifications and alerts, the ability to enable in-app messages for the business, and the option to create and manage SMS campaigns directly within the platform. The workflow automation and audience segmentation capabilities also make it easier to deliver campaigns, even if the user doesn’t know how to set everything up from scratch. Review collected by and hosted on G2.com. Show More 5/11/2026 Current UserValidated ReviewerIncentivizedSource: Seller invite SK Sacha K. Founder/CEO Small-Business (50 or fewer emp.) 7/23/2026 "Helpful Customer Support and Easy Email Campaign Design" 4.5/5 What do you like best about Customer.io? The customer support is very helpful - they are always available to book a call and answer questions we have with the platform. The platform allows us to easily design our own email campaigns without having much experience in CRM Review collected by and hosted on G2.com. What do you dislike about Customer.io? It is not easy to tag people on our list so that we can create various groups Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? I’m reaching out to multiple streamers we’d like to collaborate with on upcoming projects. Review collected by and hosted on G2.com. Show More 7/31/2026 Current UserValidated ReviewerIncentivizedSource: Seller invite ![Verified User](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User") G Verified User Mid-Market (51-1000 emp.) 7/22/2026 "Intuitive UI with Great Marketing Automation" 4/5 What do you like best about Customer.io? I think Customer.io's UI is pretty great, especially when it comes to marketing automation. The fact that it connects to so many different things allows us to market to our users better. I believe the customizations that come with different objects and attributes within events or users are great, and the UI with the campaign design is pretty awesome. The user experience and interface are a lot easier to use and more friendly compared to others I've used in the past like Marketo. I think the different channels within Customer.io, such as SMS and in-app messaging, are pretty nice, and the native integrations are really helpful. When you look at Customer.io's layout, it's pretty great and usually well set. Review collected by and hosted on G2.com. What do you dislike about Customer.io? One thing that's come up is the fact that events are immutable. They're unable to be changed. I think that's a slight annoyance. Whether you're talking about event attributes or events themselves, sometimes they do change. Being able to change the greater ecosystem of attributes would be good too because those change, and I have cleanup. But I understand. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? I use Customer.io for marketing automation. It connects to many different tools, helping us market better. The customizations, attributes, and event options are quite helpful, and the UI for campaign design is awesome. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: Seller invite ![Verified User in Hospitality](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Hospitality") UH Verified User in Hospitality Mid-Market (51-1000 emp.) 5/23/2025 "User-friendly platform that grows with your multichannel needs" 4/5 What do you like best about Customer.io? What I like best is how Customer.io evolves based on real customer feedback. I feel like they’re listening to their users and building features that help marketers create more personalised, higher-quality email campaigns. Every improvement feels like it’s designed to make our work more effective and our own customers’ experiences more personalised. Review collected by and hosted on G2.com. What do you dislike about Customer.io? The biggest drawback for me is the limited reporting capabilities. While you can get basic insights, digging deeper often requires workarounds or exporting data to analyse elsewhere. It’d be great to see more flexible, built-in reporting tools that allow marketers to get a fuller picture from within the campaign/broadcast in the platform itself. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? Customer.io is helping us bridge the gap between product, engineering, and our users. It lets us guide customers through our features in a way that’s timely and relevant, so they actually understand how to use them and get real value. Without it, a lot of people probably wouldn’t realise the full potential of our product or how it can help them succeed in their business. Review collected by and hosted on G2.com. Show More 7/22/2026 Validated ReviewerIncentivizedSource: Seller invite ![Rakesh C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Rakesh C.") RC Rakesh C. Creative and Design Manager Small-Business (50 or fewer emp.) 4/29/2026 "Customer.io: Seamless UI/UX Experience" 4.5/5 What do you like best about Customer.io? One thing I really like about Customer.io is the clean and intuitive UI/UX. The platform feels well-organized, making it easy to navigate through campaigns, workflows, and customer data without a steep learning curve. The workflow builder is especially smooth and visually clear, which helps in creating and managing automations efficiently. Overall, the user experience feels polished, modern, and productivity-focused. Review collected by and hosted on G2.com. What do you dislike about Customer.io? It only offers email support. I think they should also provide call support, at least for premium customers. Also, pricing is a little bit higher. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? Customer.io continuously improves on AI side. Which is being helpful to analyze the Email designs & SMS content as well with the ASK AGENT feature. Review collected by and hosted on G2.com. Show More 5/13/2026 Current UserValidated ReviewerIncentivizedSource: Organic ![Maddie G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Maddie G.") MG Maddie G. Marketing Project Manager Small-Business (50 or fewer emp.) 5/12/2026 "Easy-to-Use Design Studio with Powerful Contact Attributes and AI Integration" 4.5/5 What do you like best about Customer.io? I like the contact attributes, the ease of use in Design Studio, and the AI integration. Review collected by and hosted on G2.com. What do you dislike about Customer.io? I wish that there was more ability to organize different email designs within Design Studio. I have multiple types of emails in the software and am having trouble understanding the best way to organize designs in ways that serve multiple needs. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? AI integration is HUGE for us, and is such an added benefit of Customer.io. I really appreciate Customer.io's consistent innovation, with tools and resources to help quickly adapt to new features and innovation. New tools only help us and don't feel like a barrier to the work we do, which is awesome! Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ![Jackie K.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Jackie K.") JK Jackie K. Senior Lifecycle Marketing Manager Mid-Market (51-1000 emp.) 5/18/2026 "Great Design Studio and LLM connection, but clunky freezes and missing key features" 3.5/5 What do you like best about Customer.io? We really enjoy the Design Studio features and the ability to connect to an LLM. The platform is easy to navigate overall, and the search feature makes it even simpler to find what we need. Review collected by and hosted on G2.com. What do you dislike about Customer.io? It can be clunky and tends to freeze. The bee editor does not autosave, and work can be lost. There were basic features, such as advanced reporting and the ability to resend a campaign, that were not native. The test-and-learn feature is not robust—there is no easy way to test at a specific time of day. Liquid logic is not always stable and can break. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? Complex campaigns and logic builds Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Onno S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Onno S.") OS Onno S. co-founder & CEO Small-Business (50 or fewer emp.) 7/23/2026 "Easy Setup and Helpful Technical Support Agent" 4.5/5 What do you like best about Customer.io? The setup was easy, and I really like having an agent who helps me with technical issues. As a non-tech founder, this has helped me a lot and made the whole process much smoother. Review collected by and hosted on G2.com. What do you dislike about Customer.io? Haven't found any yet; all working fine. Review collected by and hosted on G2.com. What problems is Customer.io solving and how is that benefiting you? We use it in our MVP for user administration and user support. We especially like having multiple contact options available, which makes it easier to reach users and handle user communication. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: Seller invite ## Questions about Customer.io? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about Customer.io ](https://www.g2.com/products/customer-io/discussions/new) ![Rebekah C.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Rebekah C.") RC Rebekah Cineus • Last activity about 5 years ago What is the best way to make automations a smoother process? 1 Upvote 1 [ Join the conversation ](https://www.g2.com/discussions/what-is-the-best-way-to-make-automations-a-smoother-process) ![Md. A.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Md. A.") MA Md. Aktar-uz-zaman • Last activity over 4 years ago Is it available in Bangladesh? 2 Upvotes 1 [ Join the conversation ](https://www.g2.com/discussions/is-it-available-in-bangladesh) [ View all Discussions ](https://www.g2.com/products/customer-io/discuss) ## Pricing Options Pricing provided by Customer.io. ### Essentials Starting at $100.00 Per Month ### Premium Starting at $1,000.00 Per Month ### Enterprise Contact Us Per Year [ View More Pricing Information ](https://www.g2.com/products/customer-io/pricing) Customer.io Comparisons ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_9e6d9338f250174ed915e718b8144e5a/braze.jpg "Product Avatar Image") Braze 4.5/5(1,689) [ Compare Now ](https://www.g2.com/compare/braze-vs-customer-io) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_74390118cdf58a60fb81adaaefdb6287/hubspot-marketing-hub.png "Product Avatar Image") HubSpot Marketing Hub 4.4/5(14,913) [ Compare Now ](https://www.g2.com/compare/customer-io-vs-hubspot-marketing-hub) ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/small_square/small_square_75188b4bc94b352db2f21d0ba2534e92/iterable.png "Product Avatar Image") Iterable 4.4/5(825) [ Compare Now ](https://www.g2.com/compare/customer-io-vs-iterable) ##### ##### Customer.io Features Integration Data Import & Export Tools Integration APIs Platform Customization Workflow Capability User, Role, and Access Management Email Marketing Building and Personalizing Emails Sending Outbound Emails Manage Email Deliverability Online Marketing Dynamic Content A/B Testing Mobile Optimized [ View More Features ](https://www.g2.com/products/customer-io/features) ## Top-Rated Alternatives [ ![Iterable](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Iterable") Iterable 4.4/5(825) ](https://www.g2.com/products/iterable/reviews) [ ![Braze](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Braze") Braze 4.5/5(1,689) ](https://www.g2.com/products/braze/reviews) [ ![Klaviyo](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Klaviyo") Klaviyo 4.6/5(1,360) ](https://www.g2.com/products/klaviyo/reviews) [ View All Alternatives ](https://www.g2.com/products/customer-io/competitors/alternatives) ##### Categories on G2 [SMS Marketing](https://www.g2.com/categories/sms-marketing)[Marketing Automation](https://www.g2.com/categories/marketing-automation)[Personalization](https://www.g2.com/categories/personalization) [SMS Marketing](https://www.g2.com/categories/sms-marketing)[Marketing Automation](https://www.g2.com/categories/marketing-automation)[Personalization](https://www.g2.com/categories/personalization)[Mobile Marketing](https://www.g2.com/categories/mobile-marketing)[Transactional Email](https://www.g2.com/categories/transactional-email)[Push Notification](https://www.g2.com/categories/push-notification)[Customer Data Platform (CDP)](https://www.g2.com/categories/customer-data-platform-cdp) [Show MoreShow Less](javascript:void(0);) ##### Explore More [Top-rated automation testing tools for mobile apps](https://www.g2.com/discussions/top-rated-automation-testing-tools-for-mobile-apps)[Which columnar databases provide secure data sharing across teams without having to copy or move data so different teams can query the same source without data governance headaches?](https://www.g2.com/discussions/which-columnar-databases-provide-secure-data-sharing-across-teams-without-having-to-copy-or-move-data-so-different-teams-can-query-the-same-source-without-data-governance-headaches)[Which file recovery software solutions with easy setup are rated highly by practitioners?](https://www.g2.com/discussions/which-file-recovery-software-solutions-with-easy-setup-are-rated-highly-by-practitioners) [What is the most recommended tool for social media campaigns?](https://www.g2.com/discussions/what-is-the-most-recommended-tool-for-social-media-campaigns)[What inspection management platforms connect with maintenance, ERP or quality management systems so inspection findings automatically create work orders or non-conformance reports?](https://www.g2.com/discussions/what-inspection-management-platforms-connect-with-maintenance-erp-or-quality-management-systems-so-inspection-findings-automatically-create-work-orders-or-non-conformance-reports)[Pros and Cons Details](https://www.g2.com/products/customer-io/reviews?qs=pros-and-cons) [Show MoreShow Less](javascript:void(0);)