What users are saying about
21 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 21 reviews and ratings
Iterable
<a href='https://www.trustradius.com/static/about-trustradius-scoring#question3' target='_blank' rel='nofollow noopener'>Customer Verified: Read more.</a>
41 Ratings
<a href='https://www.trustradius.com/static/about-trustradius-scoring' target='_blank' rel='nofollow noopener'>trScore algorithm: Learn more.</a>Score 7.4 out of 100
Based on 41 reviews and ratings
Feature Set Ratings
Email & Online Marketing

Customer.io
Feature Set Not Supported
N/A
6.3
Iterable
63%
Iterable ranks higher in 8/8 features
Iterable ranks higher in 8/8 features
WYSIWYG email editor

N/A
0 Ratings
6.2
62%
17 Ratings
Dynamic content

N/A
0 Ratings
5.5
55%
18 Ratings
Ability to test dynamic content

N/A
0 Ratings
5.9
59%
18 Ratings
A/B testing

N/A
0 Ratings
6.5
65%
20 Ratings
Mobile optimization

N/A
0 Ratings
5.9
59%
17 Ratings
Email deliverability reporting

N/A
0 Ratings
6.9
69%
28 Ratings
List management

N/A
0 Ratings
6.0
60%
20 Ratings
Triggered drip sequences

N/A
0 Ratings
7.3
73%
17 Ratings
Reporting & Analytics

Customer.io
Feature Set Not Supported
N/A
5.1
Iterable
51%
Iterable ranks higher in 3/3 features
Iterable ranks higher in 3/3 features
Dashboards

N/A
0 Ratings
5.0
50%
19 Ratings
Standard reports

N/A
0 Ratings
5.2
52%
19 Ratings
Custom reports

N/A
0 Ratings
5.0
50%
17 Ratings
Platform & Infrastructure

Customer.io
Feature Set Not Supported
N/A
7.0
Iterable
70%
Iterable ranks higher in 3/3 features
Iterable ranks higher in 3/3 features
API

N/A
0 Ratings
6.5
65%
17 Ratings
Role-based workflow & approvals

N/A
0 Ratings
6.7
67%
13 Ratings
Customizability

N/A
0 Ratings
7.7
77%
16 Ratings
Attribute Ratings
- Customer.io is rated higher in 1 area: Likelihood to Recommend
Likelihood to Recommend

9.8
Customer.io
98%
8 Ratings
6.7
Iterable
67%
21 Ratings
Usability

Customer.io
N/A
0 Ratings
1.0
Iterable
10%
1 Rating
Support Rating

Customer.io
N/A
0 Ratings
1.0
Iterable
10%
1 Rating
Likelihood to Recommend
Customer.io
This tool is well-suited for companies looking to run email marketing campaigns or send out newsletters regularly to their users/customers. The workflow setup is especially useful for companies who want to send specific emails based on user behavior - i.e. they've not logged in recently, have bought a specific product, haven't opened any emails, etc. This could also be useful for freelancers like me since you can create different workspaces within Customer.io. I have configured it this way to handle email marketing for a few of my clients, and the software keeps everything organized and separate. This might not be the best tool for small businesses, considering the price. It may be better to start out with a cheaper email marketing tool, and then if/when necessary, scale-up with a tool like Customer.io.
Marketing Manager
FreelanceMarketing & Advertising, 1-10 employees
Iterable
I
would highly recommend Iterable especially if you are a large enterprise
company with unlimited resources and are willing to get lots of customization
done. However, to be honest, if you are a small business then I wouldn’t highly
recommend Iterable to you because in my opinion, it fits well in a larger
company. Also,
I think that Iterable is a great software for B2C companies who are looking to
focus on improving their retention using cross-channel messaging.
would highly recommend Iterable especially if you are a large enterprise
company with unlimited resources and are willing to get lots of customization
done. However, to be honest, if you are a small business then I wouldn’t highly
recommend Iterable to you because in my opinion, it fits well in a larger
company. Also,
I think that Iterable is a great software for B2C companies who are looking to
focus on improving their retention using cross-channel messaging.
Senior Account Executive
Twilio Inc.Internet, 1001-5000 employees
Pros
Customer.io
- Managing users, attributes and events. You are easily able to modify any user, based on their ID, and add or remove attributes, assign events to them. That makes it very easy to segment later and to assign them to several campaigns based on behavior. Just a warning: this integration isn't so easy (at least it wasn't for us).
- Creating workflows of campaigns is very easy. You can quickly create behavioral campaigns based on attributes, segments and add elements to the workflow. You can send an email, then wait, then send another, then exit the campaign if they converted, etc. The workflow is easy to configure and very powerful for automation.
- We don't use many email templates (we make them in MJML) but it's very easy to add senders, to change templates and in general to test designs.
- Deliverability works very well, at least for us. It sends emails pretty fast and without issues.
- Exporting is very quick and easy. Importing wasn't a feature until recently, but it works well too.
- Seeing activity it's also useful. In general, logs are awesome (be it of a customer, of activity on the site, email sends, etc.).
- We don't use environments, but it might be very useful for a bigger company.
Cofounder / Marketing, Growth, Technology, Experience
VestuáRetail, 11-50 employees
Iterable
- I love Iterable's ability to A/B test not only the messaging but the timing and medium of messages as well.
- Iterable's workflow editor is fantastic. It's far more advanced than most competitors.
- Iterable was easy to get started with because of its Segment.com integration.
Director Of Product Design
GetHumanConsumer Services, 1-10 employees
Cons
Customer.io
- Push notifications are very rudimentary. Everything has to be done by hand unless you're sending an extremely simple message.
- A bit too email centric.
- Lacks an ability to schedule messages on a daily, weekly, etc. basis.
Growth Product Manager
First.Real Estate, 51-200 employees
Iterable
- Workflow webhooks have limited customization and data options
- Custom events are great for segmentation and workflow triggers, but unusable to personalize an email based on past custom events.
- No rate limiting on webhooks. Easy to bring down a third party vendor if processing a list.
Director, Marketing Data and Technology
OportunFinancial Services, 1001-5000 employees
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.Iterable
General
Free Trial
Yes
Free/Freemium Version
—Premium Consulting/Integration Services
Yes
Entry-level set up fee?
Optional
Starting Price
$500 per month
Iterable Editions & Modules
Edition
Iterable | $5001 |
---|
- per month
Additional Pricing Details
Pricing based on size of customer's user list and messages sent.Usability
Customer.io
No score
No answers yet
No answers on this topic
Iterable
Iterable 1.0
Based on 1 answer
Our implementation failed, so I can only give this a zero.

Verified User
Executive in Product Management
Internet Company, 51-200 employeesSupport Rating
Customer.io
No score
No answers yet
No answers on this topic
Iterable
Iterable 1.0
Based on 1 answer
Our implementation failed and their sales engineer lied to us about how Iterable works, so this absolutely deserves a zero.

Verified User
Executive in Product Management
Internet Company, 51-200 employeesAlternatives Considered
Customer.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
Iterable
Iterable is right up there with any other brand I have used in my role as a cx service representative and escalations agent. The flow is smooth and easy to use. Everything you need is all labeled clearly and resolution methods are obvious and not much walk through is needed
Independent Contractor
Rothy’s/NexRepApparel & Fashion, 51-200 employees
Return on Investment
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
Iterable
- Hit or miss - our old ESP had a rock solid shared IP pool and sending domains that we were able to use so we never really had to worry about deliverability. Unfortunately it was sunsetted (bronto) and we've had a negative impact on ROI having to move things over but its not necessarily a direct reflection of Iterable hurting our ROI, just the nature of the situation.

Verified User
Project Manager in Marketing
Marketing & Advertising Company, 1-10 employees