# Page 2 | Customer.io Reviews 2026. Verified Reviews, Pros & Cons | Capterra > Page 2 - 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 2 - Reviews of Customer.io ## Showing most helpful reviews Showing 26-50 of 87 Reviews Sort by: Most Helpful Rating Company Size Reviewer's Role Length of Use Frequency of Use BB Benjamin B. Head of Growth Marketing and Advertising Used the software for: Less than 6 months ### "Service client à côté de la plaque" July 1, 2025 1.0 Fuyez-les, ils bloquent votre business !! Je n'ai donc pas pu lancer mes campagnes, je n'ai aucune explication de leur part, mon client n'a plus confiance en moi et moi je n'ai plus confiance en customer.io. Pros Un super CRM déjà testé et approuvé par le passé. Large possibilté de set up, on peut tourner l'outil dans tous les sens. Cons Après avoir utilisé customer.io à de multiple reprises, je convaincs un de mes clients de passer d'Hubspot à customer.io. Nous paramétrons les campagnes, je demande la vérification du compte, et après quelques échanges avec le service client, plus aucune nouvelle. Mon compte n'est pas validé, je ne peux pas lancer mes campagnes et mes messages au customer service restent sans réponse. La période d'essai fond sous mes yeux. Très bon CRM, mais service client complètement nul, c'est bien dommage !! Alternatives considered [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/)[Brevo](https://www.capterra.com/p/132996/brevo/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Reason for choosing Customer.io Parce que customer.io laissait une plus grande liberté d'action. Switched from [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/) Par recommandation de la part d'autres équipes marketing. Review Source Aifton C. Marketing Manager Food & Beverages Used the software for: 6-12 months ### "I still love customer.io" January 11, 2026 5.0 Still overall very positive and I would continue to recommend customer.io to other marketing professionals Pros I’m still loving how easy it is to segment out audiences and schedule sins in the platform. Recent AI upgrades have also made work seamless. Cons I still wish there was a higher file, upload capacity and more video options for emails, but I understand that different platform have different limitations 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 EO Eniola O. Marketing strategist. Mental Health Care Used the software for: 1-2 years ### "Ease of use." November 21, 2024 4.0 Pros It is very easy to use, even for someone who is just starting marketing or is not a professional. Cons The functionalities are quite limited when it comes to marketing and that was why I switched. Review Source DX Derrick X. Senior staff engineer Computer Software Used the software for: 6-12 months ### "Marketing centré sur le client avec customer.io" May 25, 2024 4.0 Pros Ces e-mails et messages personnalisés ? Ils ont l'impression de s'adresser directement à moi, et non à une liste générique. Je me sens valorisé en tant que client. Cons Parfois, l'éditeur de courrier électronique peut sembler un peu maladroit. Ce serait bien s'il était plus facile de glisser-déposer des éléments pour concevoir des e-mails. Review Source DH Drew H. Director of Marketing Operations Health, Wellness and Fitness Used the software for: 1-2 years ### "Review of Customer.io from avid user" June 8, 2023 5.0 We love it. It surpasses all of the cheaper options and plugs into our product in a way more efficient way. I regularly recommend it to friends in similar sized businesses. Pros Functionality is really great. It is easy to use, and the flow of setting up campaigns and broadcasts makes perfect sense. I've used the drag and drop as well as uploaded HTML into different campaigns. Testing is good, the omni channel approach all in one section is super helpful. It's built like a marketing manager had a say but a developer and engineer understood all the actual requirements. Cons Analytics and the reporting, as mentioned previously. The conversion rate should be more adjustable to show people who entered journeys and converted vs just how many emails were sent and conversions. It makes changing up campaigns a little tougher, but still doable with exports and managing the analytics manually. Reason for choosing Customer.io This was recommended by a colleague who had used it previously, and we bought in right away. Switched from [Mailgun](https://www.capterra.com/p/159630/Mailgun/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Too many different little tools when everything is built into Customer.io Review Source Giovanna R. Product Marketing Manager Computer Software Used the software for: 2+ years ### "The best software for Customer Marketing E-mails" May 30, 2023 5.0 Customer.io is one of my favorite tools at work, so easy to use that I don't even have to teach new people on my team on how to use it, they just do. I check it every day and use it as the main tool in communicating with our clients about new feature releases, new products, important changes in our software, customer marketing etc. Also it's our main tool for onboarding new users through email campaigns that are very easy to setup, with a lot of functionalities that helps us filtering the customers and offering a personalized experience. I really recommend it Pros I really like how easy it is to setup an email campaign and automate it according to users different attributes. We have a lot of onboarding campaigns going on in all languages and it is the best software we have with this kind of funcionality. Also, broadcasts are very simple to create and easy to track. The UX/UI of the platform is perfect, definitely the best one we have among the e-mail senders we use. Cons The template creation is very limited, forcing us to use other softwares and exporting the HTML code to customer.io. Also, the contact database is kind of messy, not very easy to find people, organizing contacts or filtering them. Review Source JL Jeremy L. Growth Manager Information Technology and Services Used the software for: 6-12 months ### "The marketing campaign tool for any startup, scaleup or e-commerce that want a reliable tool to work" January 5, 2023 5.0 Pros The UI/UX is really great and intuitive. It comes with a lot of features and different channels. It can be used by many different types of people, from not knowing how to code at all, to more advanced users. Enabling complex possibilities. Cons Setting up our dedicated preference center required quite some time and resources. Plus it did break native campaign tracking as well as the native unsubscribe button. But they are coming with a new feature on this side really soon.The second pain is focused on data analysis. There is quite some interesting data point, but it can quickly get tough when you try to extract specific behavior or data point. They know about it and are working also on this big part of the product. Alternatives considered [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/)[Segment](https://www.capterra.com/p/150621/Segment/) Reason for choosing Customer.io The core product strength, the great UX, a comprehensive and competitive pricing Review Source BS Beth S. Data and Analytics Manager Consumer Electronics Used the software for: 2+ years ### "I've been a Customer.io user for ~3 years and would highly recommend it to growing startups" June 12, 2023 5.0 Pros Customer.io has evolved so much since I started using it! In the beginning, we had to use a lot of workarounds like sending leads via Zapier but they've made huge quality-of-life improvements. We can either use our data connectors to facilitate lead management but they also have a form connector that makes this process a breeze.I love how easily Customer.io connects to our existing data structure and makes it super easy to break down data silos across our suite of tools. The integrations are really easy to use!The campaign builder is super flexible and allows us to not only send marketing comms to our users but also to clean up data and use it to automate basic tasks within the platform. Emails are very easy to setup, especially with the ability to save rows and use snippets. This saves us time when creating new content. We also frequently use the display conditions for email as we have different offerings for users in Canada VS the US. This helps us really customize the content to fit the users' needs. Cons While Customer.io does offer SMS/mobile messaging, it would be great if they integrated with more companies so we had more options here. Switched from [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) While we're mainly an e-commerce company, we also have a mobile app that is really important in the user journey. Klaviyo worked well for ecomm-specific engagements and tracking but wasn't built to support to in-depth customer tracking we needed from our app. We switched to Customer.io because it was a cost-effective option that allowed us to track both transactional events as well as user behaviours within our app and marketing site. Review Source PF Pedro F. Head of Marketing Marketing and Advertising Used the software for: 2+ years ### "Our go-to automation software" October 19, 2023 5.0 Overall my team is very happy with the software and we would recommend it. Pros It's very easy to use and does 90% of what you'd need to automate your marketing. Cons Some of the UI choices over time have become worst, like elements covering crucial elements (eg. minimap when editing an email), and their push to become more of a CDP than a marketing software has made the platform more cluttered for those who, like me, want to use it for marketing automation. Lastly, but possibly most importantly, the fact that we still can't DUPLICATE a campaign is absurd. Having to re-create campaign settings each time is such a time waste, for a seemingly obvious (And simple) feature. Alternatives considered [ActiveCampaign](https://www.capterra.com/p/79367/ActiveCampaign/)[Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) Reason for choosing Customer.io Price and ease-of-use. Switched from [Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Customer.io is much more capable of managing multi-channel campaigns, with complex segmentation. Review Source CG Chelsea G. Senior Visual Designer Computer Software Used the software for: 1-2 years ### "One of the best email marketing tools I've used!" January 17, 2023 4.0 I've been using Customer.io for almost two years and couldn't be happier with our experience! It was super easy to transition from our previous email client and integrate and connect with our other software. It's been an important piece of our marketing strategy and has helped us generate upsells and new leads. Pros I've worked in many email marketing tools over the years and Customer.io is by far the easiest to use for every member on our marketing team! The drag and drop tool has really helped us achieve the same brand look across every email we send - and it's easy enough that even our copywriters can create emails. No designers or developers needed! Cons The only limitation is that I wish the dashboard and interface was a bit more user friendly. I feel like the image library is buried. I feel like there's so many impressive C.io features get hidden. I also wish you set your "Email Settings" in your Team Profile and those settings could be applied to every email instead of manually inputting them each time. Alternatives considered [HubSpot Marketing Hub](https://www.capterra.com/p/171840/HubSpot-Marketing/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/)[Intercom](https://www.capterra.com/p/134347/Intercom/) Reason for choosing Customer.io We had various demo calls with the alternative products listed above and C.io stood out to our entire team. The ease of use was unmatched. It was exactly the platform we had been looking for. Switched from [Intercom](https://www.capterra.com/p/134347/Intercom/) We were not happy with the usability of Intercom for our Marketing Emails. The functionality of C.io was seamless and so easy to use for our entire team. As a designer, I was able to create a library of row designs tailored to our brand library so now anyone on the team can throw together a branded, well-designed email. C.io has made my job SO much easier! Review Source WZ Wendy Z. Lifecycle Marketing Manager Internet Used the software for: 6-12 months ### "Highly recommend!" June 5, 2023 5.0 The customer success and support team at CustomerIO have been a massive factor in my experience. I cannot express my appreciation enough. They are prompt, amiable, and always willing to go the extra mile whenever I reach out to them. I really value the CSM assigned to our account. He has not only taught me how to use Customer.io, but he's also doubled as a strategic partner in helping me bring my ideas to life through Customer.io. Pros I find the product to be user-friendly and enjoyable. The campaign builder is my favorite feature as it allows me to create intricate journey flows with ease. The 'wait until' action block has been a game-changer for me as it has minimized the need for engineering resources. Cons I've been using Customer.io for 6 months now and honestly, I don't have any complaints. Seems like for every issue I've had, the support team is dedicated to unblocking me. There are always ways to improve a product, but in terms of important game-changing features, they really thought of everything. Alternatives considered [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/)[Marketo Engage](https://www.capterra.com/p/75130/Marketo-Lead-Management/) Reason for choosing Customer.io Cost and level of support Switched from [Braze](https://www.capterra.com/p/155423/Appboy/) Customer.io saved us money and engineering resources. It was easier to use at our current size. Review Source Michael K. Chief Executive Officer Information Technology and Services Used the software for: Less than 6 months ### "Great Customer Email Tool - Content Creation Needs Improvement" March 22, 2016 4.0 We have been using Customer.io for nearly three months, and it has revolutionized the way our SaaS business communicates with its customers. From multi-part onboarding of new customers to re-stimulation of lapsed users to announcements of new features, Customer.io has been a dream come true for our subscription business. Building a sequence ("workflow") of emails, triggered by a particular event (like SIGN-UP or UPGRADE or CANCELLATION) is a snap. And applying it to individual customer segments is easy, though you'd better brush up on your logic (AND/OR/NOT etc.) before you construct a more exotic segment. So, too, is the ease of constructing one-time mailings ("newsletters") to an entire group of customers meeting a certain set of criteria. Once the segments are defined, sending newsletters is quite straightforward. In this regard, Customer.io runs circles around MailChimp, which we used to use for this purpose. Integration with a software product like ours is quite straightforward, and Customer.io offers a nice API for updating customer profiles and posting events for those customers. Customer.io currently falls short in the content creation department. Its text editor doesn't measure up to the rest of the application, and requires quite a bit of hand-manipulation of HTML to get newsletters and emails looking just the way you'd like them. Getting email text to wrap around a right-justified image, for example, requires knowledge of and hand-coding in HTML. And even then, the HTML produced by the text editor is not clean. Missing, too, are functions like being able to duplicate a workflow in order to launch a slightly different communication flow to a different customer segment. Onboarding customers to two different product tiers, for example, requires that the entire workflow be created from scratch for each segment, rather than allowing the user to duplicate the workflow and make changes to suit the second segment. Those shortcomings aside, Customer.io is a tool that shows a great deal of promise for any company that wants to communicate on a regular basis with its customers, especially when those communications need to be sequenced over a customer lifecycle. For a recurring-revenue business, where ongoing communication is key to retention and referral, a tool like Customer.io is essential to success. Pros \- Customer data base is very flexible, and easy to keep up to date via API - Very powerful segmentation tool that can use customer profile fields, events, and even interaction with email to segment customers for subsequent communication - Easy, intuitive construction and management of triggered, multi-part communications workflows - Attractive visual reporting of emails sent, opened, clicked - Reasonably priced, automatic scaling of pricing based on actual volume used (emails, customer profiles) - Built-in A/B testing of email copy Cons \- Text editor lacks power features; requires HTML in order to optimize emails - Minimal pre-packaged layouts; layout design requires knowledge of CSS - Lack of workflow cloning or replication creates unnecessary work Review Source KWL Kar Wing L. Email Marketing Specialist Electrical/Electronic Manufacturing Used the software for: 6-12 months ### "Smooth experience" May 31, 2023 5.0 Extremely positive Pros The UI/UX is very smooth and clean, and customer service is spectacular. As someone who has used many ESPs, it's very important to me that I can work smoothly without interruptions. In my career, CIO stands alone in UI/UX among competitors. Our account representative is always available for help and consultations, and is always bringing value to our relationship. Cons It would be nice if there was an out-of-the-box solution for opt-in forms, but it integrates well with our third party app so this isn't a big deal. What they lack here is completely made up for in the quality of their platform and their integrations Switched from [Klaviyo](https://www.capterra.com/p/156699/Klaviyo/) CIO does everything we need, integrates better with our tech stack, and has a much better user experience. 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 GS George S. CEO Financial Services Used the software for: 1-2 years ### "Pricing doesn't work" April 12, 2024 4.0 Customerio is generally fine, but the pricing structure doesn't work for us. Ordinarily, in this situation, we would just go with a different company, but we haven't found one that makes sense. They got us in on their startup program, but that is just a bandaid on their pricing model. Pros It can send emails based on actions triggered within our app. Cons The pricing structure. It assumes clients are B2B businesses, not B2C or e-commerce. Alternatives considered [SendGrid](https://www.capterra.com/p/204113/SendGrid/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Reason for choosing Customer.io User interface and the ability to send emails triggered by in-app events. Review Source Lachlan R. Marketing Manager Information Technology and Services Used the software for: 6-12 months ### "Great software for event triggered marketing campaigns" June 8, 2023 5.0 We've been able to convert more sign-ups from trial to paid users using customer.io Pros Getting set up and using customer.io was an easy experience. All our user attributes came straight via segment and we were able to target users based on their event behaviours within our product immediately. Cons The one thing I dislike is the load times between pages - compared with our other platform (Hubspot) its night and day with how quickly each page loads. Review Source VR Verified Reviewer Systems Engineer Computer Software Used the software for: 6-12 months ### "Awesome marketing platform!" June 29, 2022 5.0 It's great and does everything we need it to! Pros The automations are the best part of the software. We can easily create any type of campaign and manipulate it for our needs. Cons It would be cool if we could just duplicate a workspace entirely with all the segments and campaigns instead of recreating everything. Another thing that would be cool is being able to do a dynamic wait. Or have a queue type of system built-in for webhooks. Alternatives considered [Constant Contact](https://www.capterra.com/p/31898/Constant-Contact/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Reason for choosing Customer.io It auto-populated the customer attributes when we linked up Segment. It also had better logic control. Review Source Li Rou C. Growth Information Technology and Services Used the software for: 1-2 years ### "Good for non tech savvy user " June 9, 2023 4.0 Everything is perfect Pros I like going to customer.io to crease sub segment of our users. The ability to filter user by attributes is very simple to use. Cons User filtering options can be more flexible Reason for choosing Customer.io More tailored to the use case of SaaS industry Review Source KS Kate S. Content manager Marketing and Advertising Used the software for: 1-2 years ### "Very powerful tool for everything related to email marketing" June 5, 2023 5.0 I'm happy with the tool and feel confident sending transactional emails or marketing newsletters. Pros The platform has a steep learning curve, but once you get past that phase, it's truly powerful. Things that seemed impossible with other email clients are feasible with Customer.io. The drag and drop editor is also much better and runs much more smoothly than others I've used. Cons I'd say the biggest con is that it's a bit pricey. It can also be a bit overwhelming at first because there are so many features, but you just have to push through the learning curve. Switched from [SendGrid](https://www.capterra.com/p/204113/SendGrid/) Customer.io is a much more complete solution that allowed our marketing team to have more autonomy when it comes to designing email flows and newsletters. Review Source MT Max T. Co-Founder Online Media Used the software for: 2+ years ### "Loyal User " January 5, 2023 5.0 We use it daily to reach our audience and drive engagment. It's been an important piece of software tied to our growth. Pros The software integrated with our business easily and we were able to transition and begin using it immediately. Being able to segment users effectively is unmatched by other software. Cons The drag and drop tool is easy to use to build templates, but is somewhat limiting. Alternatives considered [Sailthru](https://www.capterra.com/p/155116/Sailthru-Customer-Retention-Cloud/)[Mailchimp](https://www.capterra.com/p/110228/MailChimp/) Reason for choosing Customer.io Ability to segment users more effectively. Review Source Siti Saleha A. Sales And Marketing Specialist Telecommunications Used the software for: 1-2 years ### "Email marketing with Customer.io" March 2, 2022 5.0 Pros I really like the email template in here, especially for the newsletter. The template is easy to edit and reorganized and can be reused again. The tools are easy to use and as a non technical software user, it make me really happy when i can use a new software without any problem arise. Cons Thing that i like least about this software is, the customer support isn't very active and it takes time for them to reply my tickets and email. It drags the issue that I have from be fixed while it can be quickly fixed if they can attend the support quickly. 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 VR Verified Reviewer CRO Manager Internet Used the software for: 1-2 years ### "Very versatile segmenting, triggers and campaign flows." September 20, 2017 5.0 Pros I've been using CIO for an year and a half, and from the start I liked their clean UI and how visible everything is. Customer.io lets me be very creative when it comes to engaging people with emails. Their approach based on users behavior is fantastic and can create a lot of scenarios which would be hard to do with other tools. I can create really long flows that stretch for months, have each email in there be triggered or filter out users on the fly. Did I mention the awesome A/B tests? Very helpful support team as well. Cons I'd like an easier way to delete user profiles instead of mailing support to delete in bulk. Also, would love to have a way to download an automated report for all the campaigns instead of doing it manually. Review Source Alec G. Director, Operations & Marketing Publishing Used the software for: 1-2 years ### "Solid features and capabilities for a reasonable price" June 5, 2023 5.0 Pros The features and capabilities offered are great for the price. Strong Customer Service as well. Cons Sometimes our/their APIs don't push data correctly. Review Source Talk to a Capterra advisor for free and get results within 15 minutes.