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Customer.io allows small to mid-size companies that sell online to send triggered or segmented, in-context marketing or transactional (e.g. payment receipts) emails. With an emphasis on presenting timely and relevant content to individual customers, Customer.io supports A/B Testing, timed messages, a series of emails based on a trigger event, and the requisite tracking to capture what worked and what did not. Segmentation assimilate information from events and site visits and activity to locate best customers, who are profiled and monitored in detail. Customer.io can be got for free... for up to 200 profiles and 400 monthly emails to them. Beyond this $50 will buy the entry level paid package ($45 if paid annually) for sending 10,000 emails across 5,000 profiles, and $1250 will buy "Enterprise" level tracking and engaging 500,000 persons over 1,000,000 emails monthly. For every tier and plan, it's $.12 for every 1,000 additional email entreaties beyond the allotted double-the-profiles email limit. Plans can be tailored to suit infinitely varied needs, and there's no need for a quote, because customer.io offers an online calculator to suit the very large or exquisitely particular would be user. Customer.io is based in New York and has grown fairly rapidly since its initial seed round in May, 2013, though it is still a relatively small company. However it has been rapidly adapted and is popular in the US, and is used worldwide.https://dudodiprj2sv7.cloudfront.net/product-logos/JM/tw/76ZWUCE44C5T.PNGThe best email platform for high-volume B2C communicationWe use customer.io for B2C email marketing, specifically automatic and personalized triggers. It's use by marketing and sales primarily. It helps us communicate with customers and provide real-time and personalized information in a fast and automated way. For B2C companies, Customer.io is probably the best email product out there for high volume communication.,Automatic email triggers Customization Deliverability,HTML editor Integrations Mobile app,10,Saved time Customer communication Returning customers,,25,000 to 100,000,Both,Instapage, Zapier, ActiveCampaignCustomer.io is the (nearly) perfect drip email systemCustomer.io was used for our drip email campaigns. A drip email campaign is a bit more complicated than a regular newsletter campaign: drips are an automatic series of emails that go out, and can change based on different behaviors. We used Customer.io ever since they first launched and found their system the easiest and most feature-rich for this type of campaign. We were able to send out dynamic series based on whether new clients were actively using certain features of our own software -- so we could send the right emails based on behaviors our clients or prospects took using our system. This made our engagements more useful, personalized, and effective.,Drip emails Analytics and reporting Integrations and API access,Reporting could be more customizable -- for example, seeing breakdowns of analytics by cohorts took a little bit of finagling,8,Helped increase our new user engagement with our cloud-based software Helped our sales team identify clients who had dropped off and stopped interacting with our software Helped our sales and customer service team track which clients were completing their full registration process Helped our marketing, sales, and customer service team identify key features and messaging with A/B testing for different campaigns,SendGrid Marketing Email, MailChimp and Emma,10,000 to 25,000,B2B,Evernote, QuickBooks for Mac, Google Analytics, Google Drive, Google Hangouts, MySQL, AdWords, Facebook for Business, Twitter AdsUsing Customer.io with Segment - dream come trueWe use Customer.io to automate all our email campaigns. I personally use it to trigger auto-messages for trial users signing up. It's all about urgency and timeliness when replying/messaging a new user and Customer.io allows me to do that hands free and automatic. The tool is addressing the problem of urgency and needing to be always available by allowing us to automate our email messaging.,Integrate with our existing tools Trigger emails based on events Automating our email drip campaigns Time based/triggered emails for new users signing up,I may be missing it in the UI, but a place to see the list of emails who qualify for a certain email. One easy to view chart of all our automated/lifecycle emails to see what a given user would see over their customer journey. (This is really just a feature request/idea - the product itself is really awesome.),10,Positive: Urgency in replying/starting conversations with new leads/signups/customers. Positive: Ease of integration with other 3rd party tools. Positive: GAVE US MORE TIME IN OUR DAYS! :),HubSpot,25,000 to 100,000,B2B,Slack, Google Analytics, Stripe, Amplitude Analytics, Zoom, Segment.io
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Customer.io
7 Ratings
Score 9.2 out of 101
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Customer.io Reviews

Customer.io
7 Ratings
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Score 9.2 out of 101
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August 16, 2018

Customer.io Review: "The best email platform for high-volume B2C communication"

Score 10 out of 10
Vetted Review
Verified User
Review Source
We use customer.io for B2C email marketing, specifically automatic and personalized triggers. It's use by marketing and sales primarily. It helps us communicate with customers and provide real-time and personalized information in a fast and automated way. For B2C companies, Customer.io is probably the best email product out there for high volume communication.
  • Automatic email triggers
  • Customization
  • Deliverability
  • HTML editor
  • Integrations
  • Mobile app
Customer.io is great if you're a B2C company, or you have to send out lots of automated / triggered emails based on customer behavior. If you want more advanced automation workflows (e.g. B2B marketing) then you might want to look for a different product. Either way Customer.io is a great email tool.
Read this authenticated review
Sean Anderson profile photo
June 23, 2017

Review: "Customer.io is the (nearly) perfect drip email system"

Score 8 out of 10
Vetted Review
Verified User
Review Source
Customer.io was used for our drip email campaigns. A drip email campaign is a bit more complicated than a regular newsletter campaign: drips are an automatic series of emails that go out, and can change based on different behaviors. We used Customer.io ever since they first launched and found their system the easiest and most feature-rich for this type of campaign.

We were able to send out dynamic series based on whether new clients were actively using certain features of our own software -- so we could send the right emails based on behaviors our clients or prospects took using our system. This made our engagements more useful, personalized, and effective.
  • Drip emails
  • Analytics and reporting
  • Integrations and API access
  • Reporting could be more customizable -- for example, seeing breakdowns of analytics by cohorts took a little bit of finagling
Customer.io is perfect for drip email campaigns, meaning any scenario where you need to send a series of emails to a certain client. Ideal for engaging new prospects, maybe ones on a free trial for your own product, or for upselling clients based on their activity on your own site or their engagement with your own products. Also ideal for onboarding and tutorials/training emails.

It's perfect if you want your email series to change dynamically based on customer engagement: for example, let's say you get a new client and want them to complete 3 key steps to register with you. If they take Step 1, but not Step 2 and 3, you don't want to email them asking to do Step 1. So Customer.io would automatically skip your "Step 1 Email" and move on to Step 2 and 3.

It's also excellent for A/B testing, so you can optimize whatever you're using it for.
Read Sean Anderson's full review
Ted Bennett profile photo
August 01, 2017

Review: "Using Customer.io with Segment - dream come true"

Score 10 out of 10
Vetted Review
Verified User
Review Source
We use Customer.io to automate all our email campaigns. I personally use it to trigger auto-messages for trial users signing up. It's all about urgency and timeliness when replying/messaging a new user and Customer.io allows me to do that hands free and automatic. The tool is addressing the problem of urgency and needing to be always available by allowing us to automate our email messaging.
  • Integrate with our existing tools
  • Trigger emails based on events
  • Automating our email drip campaigns
  • Time based/triggered emails for new users signing up
  • I may be missing it in the UI, but a place to see the list of emails who qualify for a certain email.
  • One easy to view chart of all our automated/lifecycle emails to see what a given user would see over their customer journey. (This is really just a feature request/idea - the product itself is really awesome.)
A few specific scenarios where Customer.io is well suited would be attempting to scale your email campaigns, personalize and trigger emails based off of events from your system. Companies who use Segment and other third party tools would be well suited as Customer.io integrates super easy with other tools.

Where Customer.io is not as well suited would be an environment where each lead/customer requires a personalized email/attention. Customer.io is designed to help you scale, but if you are just writing one off emails you might like another tool.
Read Ted Bennett's full review

Customer.io Scorecard Summary

Feature Scorecard Summary

WYSIWYG email editor (3)
9.1
Dynamic content (3)
8.1
Ability to test dynamic content (3)
8.1
A/B testing (3)
9.1
Mobile optimization (2)
10.0
Email deliverability (3)
10.0
List management (2)
10.0
Triggered drip sequences (3)
10.0
Dashboards (3)
8.6
Standard reports (3)
8.8
Custom reports (1)
7

About Customer.io

Customer.io allows small to mid-size B2B and B2C companies to send triggered or segmented, contextual marketing or transactional (e.g. payment receipts) emails. Customer.io supports A/B Testing, timed messages, multi-touch automated email campaigns based on a trigger event or segment membership (or both), and the requisite conversion tracking to capture what worked. Segmentation assimilates information from events, profile data, message activity, and page views to locate the best customers who are profiled in detail.

Customer.io offers a free, 30-day trial, and pricing starts at $250 for 50,000 profiles and 100,000 messages. Beyond this, Customer.io offers standard $750, $1,250, and $2,500 per month plans with profile size starting at 250,000 for the $750 plan and up to 1,000,000 profiles for the $2,500 plan. Plans can be tailored to suit needs greater than the $2,500 plan, and there's no need for a quote, because customer.io offers an online calculator to calculate various scenarios.

Customer.io is based in Portland, Oregon and has grown rapidly since its initial seed round in May, 2013. Customer.io has been rapidly adopted and is popular in the US, and is used worldwide.

Customer.io Features

Email & Online Marketing Features
Has featureWYSIWYG email editor
Has featureDynamic content
Has featureAbility to test dynamic content
Does not have featureLanding pages
Has featureA/B testing
Does not have featureMobile optimization
Has featureEmail deliverability
Does not have featureList management
Has featureTriggered drip sequences
Reporting & Analytics Features
Has featureDashboards
Has featureStandard reports
Does not have featureCustom reports
Additional Features
Has featureAPI Triggered Messages
Has featureRole-based permissions
Has featureNewsletters
Has featureWebhooks
Has featureSlack integration
Has featureUrban Airship integration
Has featureTwilio SMS integration
Has featureZapier integration
Has featureCustom DKIM, SPF
Has featureTimezone sending
Has featureOptional dedicated sending IP
Has featureMultiple sending workspaces
Has featureConversion tracking

Customer.io Screenshots

Customer.io Integrations

Customer.io Competitors

Pricing

Has featureFree Trial Available?Yes
Does not have featureFree or Freemium Version Available?No
Does not have featurePremium Consulting/Integration Services Available?No
Entry-level set up fee?No
EditionPricing DetailsTerms
Small Business$250month
Startup$750month
Enterprise$1,250month
Broadcast$2,500month

Every edition includes free messages and profiles. Small Business: 50,000 profiles / 100,000 free messages per month Startup: 250,000 profiles / 500,000 free messages per month Enterprise: 500,000 profiles / 1,000,000 free messages per month Broadcast: 1,000,000 profiles / 5,000,000 free messages per month

Customer.io Customer Size Distribution

Consumers
%
Small Businesses (1-50 employees)
60%
Mid-Size Companies (51-500 employees)
35%
Enterprises (> 500 employees)Enterprises (> 500 employees)
5%

Customer.io Support Options

 Free VersionPaid Version
Email
FAQ/Knowledgebase
Social Media
Video Tutorials / Webinar

Customer.io Technical Details

Deployment Types:SaaS
Operating Systems: Unspecified
Mobile Application:No