Rating
4.7
87 reviews
Starting price
$100
Usage Based
Categories
7
Founded
2012
Employees
420
Funding
9.4M
Series A
Customer.io is a customer engagement platform that enables the creation of personalized journeys across email, push notifications, in-app messages, and SMS. Powered by first-party data, it offers tools to enhance communication and drive growth. The platform allows users to collect and route real-time customer data to build targeted campaigns based on profile attributes, events, or actions. The system features a visual workflow builder for automating personalized messages and an intuitive Design Studio for creating on-brand content. Its omnichannel support ensures a streamlined customer experience across all touchpoints. AI-powered insights help marketers uncover opportunities, streamline tasks, and optimize strategies while maintaining control over messaging. Customer.io delivers the reliability and security that modern businesses require, with comprehensive data integration capabilities and advanced analytics to measure campaign performance.
Ad spend / mo
$54K
272 paid keywords
Paid visits / mo
6,635
Organic keywords
9,018
Organic visits / mo
11,208
Authority
43
8,333 ref domains
Creatives run
100
as Peaberry Software Inc.
Active now
100
last 14 days
Advertising since
Nov 2023
2.5+ yrs running
Last seen
today
still active
Running 21 ads on LinkedIn as Customer.io - a paid B2B channel, on top of any Google/Capterra spend.
The shared messaging across Customer Engagement & Cross-Channel Messaging Platform advertisers - the validated angles to copy. See the niche →
(87 reviews)
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
Aifton C. · Marketing Manager · Food & Beverages · January 11, 2026
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.
Noga M. · VP, Marketing · Financial Services · October 2, 2025
| Category | Page | Rank | Placement |
|---|---|---|---|
| Customer Data Platform | 1 | 7 | Ad |
Domain confidence 100%
| Keyword they bid on | CPC | Pos | % budget | Landing page |
|---|
| sendgrid | $5.41 | 1 | 23.2% | www.try.customer.io/competitors/vs-sendgrid |
| braze | $16.93 | 3 | 6.2% | www.try.customer.io/competitors/vs-braze |
| active campaign | $17.11 | 2 | 6.0% | www.try.customer.io/competitors/vs-activecampaign-b |
| marketo | $4.17 | 1 | 4.4% | www.try.customer.io/competitors/vs-marketo |
| push notifications | $5.33 | 1 | 3.7% | www.try.customer.io/paid/push-notifications |
| sms marketing platforms | $26.55 | 1 | 3.7% | customer.io/partners |
| klayvio | $9.50 | 2 | 3.4% | www.try.customer.io/competitors/vs-klaviyo |
| send grid | $5.41 | 1 | 3.1% | www.try.customer.io/competitors/vs-sendgrid |
| iterable | $17.98 | 4 | 2.8% | www.try.customer.io/competitors/vs-iterable-a |
| email campaign | $39.29 | 3 | 2.3% | www.try.customer.io/paid/email-marketing-trial |
| marketing automation | $10.93 | 6 | 1.8% | www.try.customer.io/paid/marketing-automation |
| customer io | $10.96 | 1 | 1.8% | www.try.customer.io/paid/demo |
| sendgrid.com | $7.07 | 1 | 1.8% | www.try.customer.io/competitors/vs-sendgrid |
| onesignal | $11.05 | 2 | 1.4% | www.try.customer.io/competitors/vs-onesignal |
| sendgrid com | $7.07 | 1 | 1.1% | www.try.customer.io/competitors/vs-sendgrid |
Messaging Automation Platform
All Your Data Without Limits — Avoid sending blast campaigns when you can deliver personalized messages. Display dynamic...
https://try.customer.io
Messaging Automation Platform - All Your Data Without Limits
Avoid sending blast campaigns when you can deliver personalized messages.
https://try.customer.io
Email Marketing Platform
7,800+ Clients — Send campaigns, newsletters, and transactional emails that resonate with your audience. Book a demo for this all-in-one customer engagement platform trusted by 7800+ brands. Email Newsletters.
https://try.customer.io
Customer.io - Official Site
Transactional/Marketing Emails — Craft engaging campaigns based on unlimited profile attributes, events, or actions. Send...
https://try.customer.io
Email Marketing Platform
Build Emails with Customer.io — Spend more time on strategy and less on building email marketing flows with Customer.io. Send...
https://try.customer.io
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.
Katie S. · Operations Manager · Leisure, Travel & Tourism · August 25, 2025
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.
Paul P. · Head of Engineering · Financial Services · July 30, 2025
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 !!
Benjamin B. · Head of Growth · Marketing and Advertising · July 1, 2025
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.
Anonymous User · Vp of Marketing · Computer Software · May 30, 2025
I use it to manage email marketing for a multilingual e-commerce site. We have different dedicated areas on customer.io 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
François M. · Marketing Manager · Business Supplies and Equipment · December 31, 2024
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.
Eniola O. · Marketing strategist. · Mental Health Care · November 21, 2024
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.
Derrick X. · Senior staff engineer · Computer Software · May 25, 2024
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.
George S. · CEO · Financial Services · April 12, 2024
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.
Pedro F. · Head of Marketing · Marketing and Advertising · October 19, 2023
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.
Arnaud B. · Co-Founder & CEO · Computer Software · August 17, 2023
Pros: - really really good for customer journey communication, easy to build trigger based automation.- easy to integrate with many marketing, CRM & Data Tools- automatize SMS, Email, Push notification- highly functional for Campaign automation
Cons: - User interface bit tricky to get used too with it
Rahul d. · CRM & digital campaign manager · Hospital & Health Care · August 3, 2023
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.
Cagri S. · Growth Marketing and Operations Manager · Transportation/Trucking/Railroad · July 3, 2023
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
Artur W. · Marketing Manager · Entertainment · June 28, 2023
Pros: Possible to make super complex flows. Pretty much replaces doing everything custom in our backend.
Cons: Nothing to dislike really. A bit complicated to use for new users, but probably because it's so powerful.
Ludwig H. · Product manager · Internet · June 27, 2023
Pros: The ease of use and the flexibility it provides
Cons: Sometimes the integration process can be a bit cumbersome.
Eduardo E. · Product · Financial Services · June 16, 2023
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
Steve D. · Web Developer · Information Technology and Services · June 12, 2023
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.
Beth S. · Data and Analytics Manager · Consumer Electronics · June 12, 2023
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
Li Rou C. · Growth · Information Technology and Services · June 9, 2023
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.
Lachlan R. · Marketing Manager · Information Technology and Services · June 8, 2023
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.
Drew H. · Director of Marketing Operations · Health, Wellness and Fitness · June 8, 2023
The experience has been great
Pros: 1. Ability to customise communications using events and segments2. Responsive customer support
Cons: 1. Very expensive for a start up2. Flow for within branches still need optimisation as users can not move from one branch to another if their status/attributes changes.
Emmanuel O. · Product Manager · Financial Services · June 8, 2023
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.
Rachelle B. · Product Manager · Computer Software · June 5, 2023
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.
Alec G. · Director, Operations & Marketing · Publishing · June 5, 2023
| 1 |
| 7 |
Ad |
| Email Marketing | 1 | 12 | Ad |
| Campaign Management | 1 | 13 | AdShortlist |
| Push Notifications | 1 | 18 | - |
| Customer Engagement | 1 | 24 | Ad |
| Data Management | 2 | 16 | - |