Customer.io Vs SMTP.com : In-Depth Comparison

tech-vs-img
imageCustomer.io

thumbs_up

thumbs_down

vs-image

Categories where Customer.io and SMTP.com compete

Email Marketing Automation
Email Analytics
Email Deliverability
Email Personalization

Choose Technologies to compare

Customer.io

arrow
vs-image
vs-image
image

Comparing the customer bases of Customer.io and SMTP.com

Comparing the customer bases of Customer.io and SMTP.com, we can see that Customer.io has 2634 customer(s), while SMTP.com has 80 customer(s). In the Email Marketing Automation category, with 2634 customer(s) Customer.io stands at 8th place by ranking, while SMTP.com with 80 customer(s), is at the 39th place.

Customer.io

star

8th

2634 Customer

SMTP.com

star

39th

80 Customer

Comparing the market share of Customer.io and SMTP.com

Customer.io has a 0.38% market share in the Email Marketing Automation category, while SMTP.com has a 0.01% market share in the same space.

Compare Customer.io vs SMTP.com customers by geography

Comparing Customer.io and SMTP.com customers based on their geographic location, we can see that Customer.io has more customers in United States, Brazil and United Kingdom, while SMTP.com has more customers in United States.

Customer.io

SMTP.com

Customer Movements for this month

Gain actionable insights about the buying patterns of Customer.io vs SMTP.com’s target audience.

Customer.io

New

20 Customer

Lost

11 Customer

SMTP.com

New

1 Customer

Lost

0 Customer

FAQ

Find answers to the most often asked questions by users.

What are the different markets in which Customer.io and SMTP.com compete against each other?

Customer.io and SMTP.com compete against each other in the Email Marketing Automation, Email Analytics, Email Deliverability, Email Personalization.

faq icon

How does the market share of Customer.io and SMTP.com compare in the Email Marketing Automation market?

faq icon

How many customers are acquired by Customer.io and SMTP.com in the Email Marketing Automation segment?

faq icon

What are the countries in which Customer.io and SMTP.com has more customers?

faq icon

Choose Technologies to compare

image
vs-image
vs-image
image

6Sense Chrome Extension

Save 15 hours a week on sales research

Get free emails, firmographics, technographics, and keyword intent from any website. Qualify leads on the go. Do intelligent outreaches and close deals faster.

Install Now
Company Logo
Customer.io vs MailChimp Marketing

Interested in 6sense for your organization?

Book a Demo
6sense Logo
social iconssocial iconssocial iconssocial icons
MarketingAccount IdentificationIntent DataData Enrichment & ManagementPredictive AnalyticsOrchestrations & WorkflowsAudience BuildingAdvertisingConversational EmailPipeline IntelligenceIntegrations
SolutionsBusiness ServicesFinancial ServicesTransportation & LogisticsManufacturingTechnologyCustomersMeet Our CustomersCustomer StoriesCustomer ReviewsRevCityKnowledge Base

Company

AboutLeadership TeamCareersNewsroomCommunity

Browse 6sense Data

TechnographicsComparing Technologies
TermsPrivacy PolicyPrivacy CenterDo Not Sell or Share My Personal Information

© 2026 6sense