Customer.io vs. Zendesk Suite

Overview
ProductRatingMost Used ByProduct SummaryStarting Price
Customer.io
Score 9.1 out of 10
Small Businesses (1-50 employees)
Customer.io is a customer engagement platform that enables marketers to build sophisticated automated messaging campaigns. With access to real-time behavioral data, users can create personalized and relevant messages to engage and retain customers. This includes sending emails, push notifications, SMS, in-app messages, and more through a visual building experience. Built for scale, Customer.io boasts users among over 5,300 companies, sending over 17 billion messages per year.
$100
per month
Zendesk Suite
Score 8.7 out of 10
N/A
Zendesk is a customer support solution with built-in ticketing, conversational messaging, and live chat, designed to help businesses of all sizes and industries deliver personalized service at scale. Zendesk's AI agents are trained in CX to help Service teams resolve customer issues faster and more accurately while still providing a human-centered experience. Zendesk ultimately aims to help businesses improve time to value, reduce effort per ticket, and keep costs low.
$69
per month per agent
Pricing
Customer.ioZendesk Suite
Editions & Modules
No answers on this topic
Suite Team
$69
per month per agent
Suite Growth
$115
per month per agent
Suite Professional
$149
per month per agent
Suite Enterprise
Contact Sales
Offerings
Pricing Offerings
Customer.ioZendesk Suite
Free Trial
YesYes
Free/Freemium Version
NoNo
Premium Consulting/Integration Services
YesYes
Entry-level Setup FeeOptionalOptional
Additional DetailsEssentials: For startups and small teams engaging customers on their mobile and web apps. - Up to 5,000 profiles*, Send Emails, Push, In-App, and SMS, Visual Workflow Builder, Segmentation, Two Workspaces, Email Support, Customer Community Premium: For high-growth companies looking for greater control over their messaging outcomes. - Everything in Essentials, Custom Data + Message Volume, Premium Product Features, Additional Workspaces, 90-day Onboarding Program, Premium Email & Chat Support, Managed Deliverability, Dedicated IPs, Parcel Pro Licenses, HIPAA Compliance Enterprise: For at-scale companies looking to create world-class customer experiences. - Everything in Premium, Managed Infrastructure*, Customer Success Manager, Quarterly Success Reviews, Technical Account Manager*, Audit Logging & Data Governance*, Parcel Business Licenses, Migration Support*, *Available by consultation.20% discount available with annual pricing.
More Pricing Information
Community Pulse
Customer.ioZendesk Suite
Considered Both Products
Customer.io
Chose Customer.io
Customer.io had the best suite of features and - most importantly for us - was willing to sign a BAA with us so we could maintain HIPAA compliance. Mailchimp was fine but we felt Customer.io had a cleaner interface and was easier for general marketers who aren't dedicated email …
Chose Customer.io
Customer.io has in my opinion more robust features for comms campaigns vs some of the other tools available on the market that have other focuses primarily and then have CRM tacked on. We've also found Customer.io to be more easy to integrate with the tech stack of our business …
Zendesk Suite

No answer on this topic

Features
Customer.ioZendesk Suite
Incident and problem management
Comparison of Incident and problem management features of Product A and Product B
Customer.io
-
Ratings
Zendesk Suite
8.9
172 Ratings
8% above category average
Organize and prioritize service tickets00 Ratings9.3171 Ratings
Expert directory00 Ratings8.2118 Ratings
Subscription-based notifications00 Ratings8.7119 Ratings
ITSM collaboration and documentation00 Ratings8.2122 Ratings
Ticket creation and submission00 Ratings9.4172 Ratings
Ticket response00 Ratings9.3171 Ratings
Self Help Community
Comparison of Self Help Community features of Product A and Product B
Customer.io
-
Ratings
Zendesk Suite
8.4
156 Ratings
4% above category average
External knowledge base00 Ratings8.3150 Ratings
Internal knowledge base00 Ratings8.5143 Ratings
Multi-Channel Help
Comparison of Multi-Channel Help features of Product A and Product B
Customer.io
-
Ratings
Zendesk Suite
8.8
168 Ratings
9% above category average
Customer portal00 Ratings9.1138 Ratings
IVR00 Ratings8.570 Ratings
Social integration00 Ratings8.4112 Ratings
Email support00 Ratings9.3165 Ratings
Help Desk CRM integration00 Ratings9.0128 Ratings
Best Alternatives
Customer.ioZendesk Suite
Small Businesses
Simplify360
Simplify360
Score 7.8 out of 10
Agiloft Service Desk (discontinued)
Agiloft Service Desk (discontinued)
Score 9.0 out of 10
Medium-sized Companies
Dialpad Support
Dialpad Support
Score 9.1 out of 10
Agiloft Service Desk (discontinued)
Agiloft Service Desk (discontinued)
Score 9.0 out of 10
Enterprises
Verint Community
Verint Community
Score 9.9 out of 10
SysAid
SysAid
Score 8.9 out of 10
All AlternativesView all alternativesView all alternatives
User Ratings
Customer.ioZendesk Suite
Likelihood to Recommend
9.1
(16 ratings)
9.0
(209 ratings)
Likelihood to Renew
-
(0 ratings)
10.0
(43 ratings)
Usability
9.2
(9 ratings)
8.8
(82 ratings)
Availability
-
(0 ratings)
9.1
(14 ratings)
Performance
-
(0 ratings)
9.1
(11 ratings)
Support Rating
-
(0 ratings)
5.6
(31 ratings)
In-Person Training
-
(0 ratings)
10.0
(1 ratings)
Online Training
-
(0 ratings)
6.4
(10 ratings)
Implementation Rating
-
(0 ratings)
9.1
(19 ratings)
Configurability
-
(0 ratings)
9.1
(4 ratings)
Contract Terms and Pricing Model
-
(0 ratings)
9.1
(1 ratings)
Ease of integration
-
(0 ratings)
9.1
(1 ratings)
Product Scalability
-
(0 ratings)
9.1
(1 ratings)
Professional Services
-
(0 ratings)
9.1
(1 ratings)
Vendor post-sale
-
(0 ratings)
9.1
(1 ratings)
Vendor pre-sale
-
(0 ratings)
9.1
(1 ratings)
User Testimonials
Customer.ioZendesk Suite
Likelihood to Recommend
Customer.io
Talking from the perspective of a marketer at a SaaS with average. 50K email subscribers, Customer IO has been an excellent tool for us. Our requirements include sending users newsletters, marketing emails, and transactional emails, running lead-nurturing campaigns, and more. For a comprehensive use case like ours, CustomerIO is great. While it also has a learning curve, when you have such requirements, it’s worth it. I don’t think CustomerIO is the best fit if you have basic requirements like only weekly newsletter emails.
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Zendesk
Being a customer support agent, I found it very good when it comes to send an email or call or chat- with the user. I can do all that from the one single platform which is so easy and time saving for you. It does not take much time to use this, We can chat- with the user and at the same time we can send an email to them as well.
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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.
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Zendesk
  • UI/UX; mature macros and automations, slick and well thought out UI.
  • Reporting, reporting, reporting. With user, org, and ticket level tags, we can track every aspect of our ticket flow.
  • Extensibility; the app marketplace is a great resource for expanding functionality from the baseline offering.
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Cons
Customer.io
  • Price is quite expensive for Premium or once you get into high volumes of contacts.
  • Depending on how you'll use it, it may require some help from developers to set up.
  • Despite the support being great, you have to email them, there's not chat feature.
Read full review
Zendesk
  • Is there a way for AEs and CSMs to be informed in a weekly summary of all their accounts and any tickets? Example: Disney submitted a ticket on XYZ. Google has an urgent issue on X still unresolved.
  • Is there a way for CSMs or AEs to have a Dashboard that's specific to their accounts instead of seeing all the tickets in the queue that are not relevant to them?
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Likelihood to Renew
Customer.io
No answers on this topic
Zendesk
Zendesk is an amazing tool for communicating with your customers easily. The communication tickets from sellers to us or from us to sellers are stored, and there are statuses used to make communication easy. We have internal conversations between departments, linked with useful software such as Zingtree, Talkdesk, and Webs.
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Usability
Customer.io
Everything was pretty intuitive to use if you've used an ESP before. The only thing that was confusing is Campaigns vs Newsletters - some of their naming conventions aren't straightforward. But their docs, support and AI agents are all super solid.
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Zendesk
Pros: The agent interface is sleek, contemporary, and relatively easy to learn compared to many other enterprise tools. For common tasks, admins are given point-and-click options- adding fields, modifying workflows, constructing macros. The knowledge base (Guide) editor is easy to use for non-developers. Drawbacks: Once you move past the initial things - complex automations, reporting/analytics in Explore, and/or customizations integrating the API, it requires much more advanced training to use successfully. Navigating between the different modules (Support, Explore, Chat, Guide) can feel very disconnected; often you are reminded that it really is a "suite" of products brought together -not really one unified platform. If you're using multiple brands managing simultaneous support tickets, or heavily customizing workflows to meet your brand, you may run into a bit of struggle with usability. So: it's a lot more user friendly than the palaces (Salesforce Service Cloud, ServiceNow), but is not used as quickly or with as much streamlined flow as a product made for a small shop. So if you are looking for a great balance, this is a good option if you are a net new organization or an organization on their way to scaling from 15 - 50 employee. Expect some elbow grease from the admin team once learning, adapting, and working efficiently once you move past the basics with your support tickets and initial customizations.
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Reliability and Availability
Customer.io
No answers on this topic
Zendesk
In the past year, I'd say I have only noticed maybe two hours total of downtime in my own usage. Very minimal.
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Performance
Customer.io
No answers on this topic
Zendesk
There has been minor performance degradation on a very few days out of the two years I have been using the product.
Read full review
Support Rating
Customer.io
My experience with their support team has always been great. Very quick to respond, have an online chat, and are very helpful. They helped me resolve any issues I've had every time in a professional and knowledgeable manner. We've now switched to another tool, and I can't even compare the service level we get there to customer.io
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Zendesk
We rarely need to contact their support team, but when we do they are responsive. However there have been notable times when communication between myself and the support rep was challenging despite me providing clear explanation of the issue, screenshots, and a thorough explanation of the goal we hope to achieve. It took several back and forth attempt, on a few occasions, to get resolution on an otherwise simple request
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Online Training
Customer.io
No answers on this topic
Zendesk
Zendesk has tons of available material for training - videos, webinars, articles, etc. The only reason this is not a 10 is because it can be hard to figure out how to navigate to these things and find what you are looking for.
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Implementation Rating
Customer.io
No answers on this topic
Zendesk
I was very satisfied. They have a free trial for 30 days and I recommend you do that and use it. It is very easy to get started with the basics and the build on over time.

The only thing technically complex was single sign-on and integration to Salesforce.com required some tweaks – otherwise setting up system was very easy
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Alternatives 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.
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Zendesk
The customisable reporting every time. Our leadership reply on me to run my team and want to know what customers are telling us so they can elevate our products. We have extensive custom reports that tie up all aspects of our product and customer journeys. I've not found another product that allows me as much freedom as Zendesk Suite explore does, so far.
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Scalability
Customer.io
No answers on this topic
Zendesk
WHY we will use Zendesk in HR and PD internally
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Return on Investment
Customer.io
  • Positive impact on the sales side. I'm not sure about the specific ROI (you have to include the designer and the time it takes to set up) but you certainly get back the investment in a few months, once you are able to scale your email marketing.
  • Customer experience is way better by having more segmented, contextual and accurate messages sent to them.
  • Integration is costly and it will take several days or weeks to be fully achieved. Expect to invest some money on this.
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Zendesk
  • Integrating other AI solutions for an organization with high volumes can cost about USD5000 monthly. With Zendesk AI and by building onto the same with AI powered apps built for Zendesk Suite we save a projected USD4000 monthly.
  • Robust Zendesk APIs have enabled us to integrate our internal system with a customized app saving us hundreds of hours every quarter spent loading customer profiles that are not loaded instantly from the app.
  • Plug and play apps like Round robin save us weeks of sprint delay timelines as they do not require additional coding or developer support to install and start using.
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ScreenShots

Customer.io Screenshots

Screenshot of data-driven or manual segments that can be created in the no-code builder for recipient lists, campaign triggers, filters, and conversion goals.Screenshot of the code editor for email, that helps navigate code and iterate.Screenshot of account performance, visible at a glance from the Dashboard view.Screenshot of drag and drop messages, time delays, and branches where desired, to build cross-channel campaigns.Screenshot of triggered campaigns based on forms submissions, customer attributes, customer actions, and dates.Screenshot of localization for global audiences. One message can be delivered in multiple languages.

Zendesk Suite Screenshots

Screenshot of the Zendesk Agent WorkspaceScreenshot of Omnichannel MessagingScreenshot of Zendesk TicketingScreenshot of Bots powered by Zendesk AIScreenshot of Tone shift with Zendesk AIScreenshot of Zendesk ticketing side conversations