What users are saying about
Constant Contact
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Top Rated
716 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 8.1 out of 100
Based on 716 reviews and ratings
20 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 8.9 out of 100
Based on 20 reviews and ratings
Feature Set Ratings
Email & Online Marketing

7.7
Constant Contact
77%

Customer.io
Feature Set Not Supported
N/A
Constant Contact ranks higher in 9/9 features
Constant Contact ranks higher in 9/9 features
WYSIWYG email editor

7.8
78%
82 Ratings

N/A
0 Ratings
Dynamic content

7.6
76%
82 Ratings

N/A
0 Ratings
Ability to test dynamic content

7.5
75%
81 Ratings

N/A
0 Ratings
Landing pages

7.6
76%
56 Ratings

N/A
0 Ratings
A/B testing

7.4
74%
52 Ratings

N/A
0 Ratings
Mobile optimization

8.0
80%
85 Ratings

N/A
0 Ratings
Email deliverability reporting

8.6
86%
135 Ratings

N/A
0 Ratings
List management

8.4
84%
90 Ratings

N/A
0 Ratings
Triggered drip sequences

6.7
67%
47 Ratings

N/A
0 Ratings
Reporting & Analytics

7.8
Constant Contact
78%

Customer.io
Feature Set Not Supported
N/A
Constant Contact ranks higher in 3/3 features
Constant Contact ranks higher in 3/3 features
Dashboards

7.8
78%
87 Ratings

N/A
0 Ratings
Standard reports

8.2
82%
87 Ratings

N/A
0 Ratings
Custom reports

7.5
75%
58 Ratings

N/A
0 Ratings
Pre-Send Testing

8.1
Constant Contact
81%

Customer.io
Feature Set Not Supported
N/A
Constant Contact ranks higher in 8/8 features
Constant Contact ranks higher in 8/8 features
URL Validation

8.4
84%
31 Ratings

N/A
0 Ratings
Link Tracking

8.0
80%
34 Ratings

N/A
0 Ratings
Image Validation

8.2
82%
31 Ratings

N/A
0 Ratings
Inbox Display

8.0
80%
34 Ratings

N/A
0 Ratings
Email Accessibility Tools

8.0
80%
28 Ratings

N/A
0 Ratings
Spelling and Grammar Check

7.8
78%
31 Ratings

N/A
0 Ratings
Spam Testing

7.8
78%
26 Ratings

N/A
0 Ratings
Email Previews

8.6
86%
40 Ratings

N/A
0 Ratings
Attribute Ratings
- Customer.io is rated higher in 1 area: Likelihood to Recommend
Likelihood to Recommend

8.3
Constant Contact
83%
106 Ratings

9.7
Customer.io
97%
7 Ratings
Likelihood to Renew

9.0
Constant Contact
90%
21 Ratings

Customer.io
N/A
0 Ratings
Usability

10.0
Constant Contact
100%
9 Ratings

Customer.io
N/A
0 Ratings
Availability

9.0
Constant Contact
90%
4 Ratings

Customer.io
N/A
0 Ratings
Performance

10.0
Constant Contact
100%
4 Ratings

Customer.io
N/A
0 Ratings
Support Rating

10.0
Constant Contact
100%
17 Ratings

Customer.io
N/A
0 Ratings
Online Training

10.0
Constant Contact
100%
1 Rating

Customer.io
N/A
0 Ratings
Implementation Rating

10.0
Constant Contact
100%
9 Ratings

Customer.io
N/A
0 Ratings
Product Scalability

10.0
Constant Contact
100%
1 Rating

Customer.io
N/A
0 Ratings
Likelihood to Recommend
Constant Contact
Constant Contact is great when trying to target specific market segments. We typically like to segment our master list by region, but also have product segments, as well. They do provide pre-made segments to start you off too.We don't usually use their email builder, we find others to be more flexible, intuitive, and have more variety. We do prefer emailing from Constant Contact, however.

Verified User
Employee in Marketing
Oil & Energy Company, 51-200 employeesCustomer.io
If you have a very small database of people, then probably the whole integration isn't justified. If you have a small business and don't plan to scale much, don't do it. It will be expensive for what you can get elsewhere (Mailchimp).If you want a scalable and powerful platform, that will take some time to pay off, and you can wait, then do it. Once you get integrated and start sending events and attributes, the things you can do are almost limitless.
Cofounder / Marketing, Growth, Technology, Experience
VestuáRetail, 11-50 employees
Pros
Constant Contact
- You can accomplish quite a bit using the drag and drop interface, so there is less custom HTML required.
- Easy to use for folks who are not tech savvy.
- Very quick upload speed for contact lists when compared with other email marketing vendors.
- Easy to customize contact lists.
- Displays much more consistently across different email clients when compared with other email marketing vendors.

Verified User
Analyst in Marketing
Insurance Company, 501-1000 employeesCustomer.io
- Workflow building and management.
- Extremely flexible and integrates easily with other services.
- Solid email builder.
- Webhook makes it easy to send and receive data in event-driven contexts.
- Support for liquid makes highly detailed personalization possible in every message.
Growth Product Manager
First.Real Estate, 51-200 employees
Cons
Constant Contact
- The interface is definitely a bit difficult to use and it takes some getting used to.
- More customization and exporting of html would be awesome.
- They could expand on features that other email marketing software has such as tying in with social media, more flows, etc.

Verified User
Strategist in Marketing
Marketing & Advertising Company, 11-50 employeesCustomer.io
- 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.)
User Engagement
AppcuesComputer Software, 11-50 employees
Pricing Details
Constant Contact
General
Free Trial
Yes
Free/Freemium Version
—Premium Consulting/Integration Services
—Entry-level set up fee?
No
Starting Price
$9.99 per month
Constant Contact Editions & Modules
Edition
Core | $9.991 |
---|---|
Plus | $45.001 |
- per month
Additional Pricing Details
—Customer.io
General
Free Trial
Yes
Free/Freemium Version
—Premium Consulting/Integration Services
Yes
Entry-level set up fee?
Optional
Starting Price
$150 per month
Customer.io Editions & Modules
—
Additional Pricing Details
Our basic plan starts at $150 a month and includes 12,000 profiles and up to a million messages. Our premium plan starts at $1,000 a month with an annual contract, dedicated CSM, and much more.Likelihood to Renew
Constant Contact
Constant Contact 9.0
Based on 21 answers
There is no doubt that we are going to renew Constant Contact. We have not just invested a lot of time in learning and creating a great looking product but we have developed a strong database of information that allows us to track how we are doing for each newsletter. This supports our goals of creating products that residents desire and are excited to receive.
Multimedia Communications Supervisor
Virginia Beach City GovernmentGovernment Administration, 5001-10,000 employees
Customer.io
No score
No answers yet
No answers on this topic
Usability
Constant Contact
Constant Contact 10.0
Based on 9 answers
There is always room for improvement. I don't know how they test their systems, but they should invite not-so computer savvy people to test it. If I, as an expert have problems, they need to think like the technophobe. Since I've used Constant Contact in the past as part of my former employment, I have not viewed any of the tutorials and just jumped in to work on my client's newsletter. With that said, I found some areas easy and some a bit cumbersome
Owner, Consultant
AZ Social Media WizInternet, Myself Only
Customer.io
No score
No answers yet
No answers on this topic
Reliability and Availability
Constant Contact
Constant Contact 9.0
Based on 4 answers
No major problems in sending out the email campaigns and accessing the analytics

Verified User
Manager in Research & Development
Public Policy Company, 11-50 employeesCustomer.io
No score
No answers yet
No answers on this topic
Performance
Constant Contact
Constant Contact 10.0
Based on 4 answers
The system seemed quite slow sometimes. Specifically, there was sometimes a delay in sends if it was during a high traffic period. There were time-outs when uploading new code for an email, and a lag in reporting analytics which was sometimes as long as 72 hours

Verified User
Employee in Marketing
Retail Company, 51-200 employeesCustomer.io
No score
No answers yet
No answers on this topic
Support Rating
Constant Contact
Constant Contact 10.0
Based on 17 answers
I think the overall support for Constant Contact has always been incredible; I have nothing negative to say. Our customer support representative was attentive, easy to understand, and very knowledgeable. I never felt like I wasn't a priority of his and my issues, while very small, were fixed in a very short time frame.

Verified User
Administrative Assistant in Marketing
Real Estate Company, 51-200 employeesCustomer.io
No score
No answers yet
No answers on this topic
Implementation Rating
Constant Contact
Constant Contact 10.0
Based on 9 answers
Implementation is very easy for someone who wants to send out the “batch and blast” type newsletters. If you want to use their templates with no customizations, the product works fine. However, the more customizations you get into involving link color, etc, that’s where things can get tricky for someone who may not be familiar with coding

Verified User
Employee in Marketing
Retail Company, 51-200 employeesCustomer.io
No score
No answers yet
No answers on this topic
Alternatives Considered
Constant Contact
We tried Mailchimp. We could send messages to larger groups for free with Constant Contact. And we simply found more people read the emails and responded more frequently when we used Constant Contact. I think it's because it didn't feel as much like a marketing tool as when we contacted them with Mailchimp.

Verified User
Contributor in Other
Religious Institutions Company, 10,001+ employeesCustomer.io
Customer.io was really the first pure, full-featured drip email program on the market and as far as I know, it's still the simplest and best overall for that specific function. SendGrid has also added drip campaign features, but I would seriously evaluate Customer.io against any other drip email provider because they really have all the key elements you need to make it work.
Director of Operations
MyTimeInternet, 11-50 employees
Scalability
Constant Contact
Constant Contact 10.0
Based on 1 answer
Very reliable in sending email campaigns and controlling the recipients so that no contact is sent the same email more than once, even if they are on a resent list

Verified User
Manager in Research & Development
Public Policy Company, 11-50 employeesCustomer.io
No score
No answers yet
No answers on this topic
Return on Investment
Constant Contact
- Good email marketing option that we need to expand on
- We have not had a strong determinable ROI, but we do not always know if a donation resulted from an email
- Very affordable and we plan in keeping it as a resource
Director of Development
Health Care Center for the HomelessHospital & Health Care, 51-200 employees
Customer.io
- Fast testing for new products to specific groups. It saves a lot of time and money.
- Removed workload from marketing = more time to make it better.
- Better contact with specific groups, seeing a increase in sales because of this.
Marketing Automation & SEO Specialist
Klantenfabriek.nlMarketing & Advertising, 1-10 employees