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Customer.io Reviews

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4.5 (24 reviews)

Customer.io is a software platform designed to enhance customer engagement. It enables businesses to send targeted and personalized emails, notifications, and SMS to prospects and customers. The tool aids in boosting the engagement rate throughout the customer journey. Its features include segmentation, automation, and real-time analytics, providing businesses with valuable insights into customer behavior. Customer.io aims to improve customer retention and conversion rates, ultimately driving business growth.

  • 01Pros and cons from reviewers
  • 02Main features
  • 03What is Customer.io?
  • 04How Customer.io compare to similar software?
  • 05Who is Customer.io best for according to our reviewers?
  • 06Customer.io Reviews

What is Customer.io?

Customer.io is a powerful SaaS solution that automates marketing, sales, and customer service processes. It allows businesses to create targeted campaigns, nurture prospects, onboard new customers, and launch upsell and cross-sell campaigns. The platform enables automated workflows that respond to customer behavior, providing a seamless experience that keeps customers engaged. It also offers detailed analytics and reporting to measure campaign success and optimize marketing efforts. Through Secret, businesses can access exclusive deals on SaaS solutions like Customer.io, saving costs while enhancing their marketing, sales, and customer service processes.

Pros from reviewers

  • Exceptional customer service: Customer.io is commended for its exceptional customer service. The account representative is always available for assistance and consultations, adding value to the relationship with the user

  • Powerful and comprehensive: Despite a steep learning curve, users find Customer.io to be incredibly powerful once they get the hang of it. It enables them to accomplish tasks that seemed impossible with other email clients. The drag and drop editor is superior and operates more smoothly than others.

  • User-friendly nature: Customer.io is praised for its user-friendly nature, making it a favorite tool for many users. It's used daily as a main communication tool with clients, informing them about new features, products, and significant software changes

  • Email campaign automation: The software is appreciated for its simplicity in setting up an email campaign and automating it based on different user attributes. It's also the primary tool for onboarding new users through easily set up email campaigns

  • Excellent UX/UI: Users find the platform's UX/UI to be excellent, the best among the email senders they use. The UI/UX is described as very smooth and clean, standing out among competitors

Cons from reviewers

  • Limited template creation: The platform's template creation is quite limited, forcing users to use other software and export the HTML code to Customer.io

  • Steep learning curve: The platform has a steep learning curve, making it initially overwhelming due to its numerous features

  • Messy contact database: The contact database can be disorganized and messy, making it difficult to manage contacts effectively

  • Requires a dedicated developer: The software is not very user-friendly and requires a dedicated developer for managing complex campaigns

  • Expensive: Despite its powerful features, the software is somewhat expensive which may not be affordable for all businesses.

12 months free for Startup Plan on Customer.io

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Main features

Starting Price

$100

/ month

Free Plan

No

Automated workflows

Personalization

Behavioral tracking

Reporting and analytics

Segmentation

12 months free for Startup Plan on Customer.io

Get 12 months free for Startup Plan on Customer.io and up to $1,800 savings with Secret.

Get Customer.io deal

When comparing HubSpot and Customer.io, it's crucial to understand their key differences to make an informed choice for your business. The main point of distinction between the two platforms is their focus and range of features.


HubSpot is an all-in-one marketing, sales, and service platform designed to provide comprehensive solutions for businesses seeking to streamline their operations. It offers an integrated CRM system, making it easy to manage contacts, track interactions, and automate workflows across multiple departments. HubSpot excels in inbound marketing, offering tools for content creation, SEO optimization, social media management, and detailed analytics. This makes it ideal for businesses looking for a holistic approach to manage their customer interactions and marketing efforts across various channels.


In contrast, Customer.io specializes in email marketing automation and personalized messaging. It is particularly well-suited for businesses that want to engage customers...

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Customer.io

Communication and marketing automation platform

12 months free for Startup Plan on Customer.io

Save up to $1,800

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HubSpot

CRM, marketing automation & customer service software suite

75% off for 1 year on HubSpot

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Both Customer.io and SendGrid are well-regarded platforms in the email marketing space, offering an array of tools designed to improve engagement through targeted communication. At their core, both provide essential features such as automation, segmentation, and performance analytics. However, the key differences between them stem from the additional functionalities they offer beyond these basics.


Customer.io is notable for its advanced customer segmentation and behavior-driven automation capabilities. It excels in creating highly personalized customer experiences by utilizing real-time data and complex trigger-based workflows. This enables businesses to send contextually relevant emails based on specific user actions or changes in their data profile. Additionally, Customer.io integrates seamlessly with mobile and web apps, allowing for cohesive messaging across various channels which is particularly beneficial for tech-savvy startups and SaaS companies looking to maintain a high...

logo customer.io

Customer.io

Communication and marketing automation platform

12 months free for Startup Plan on Customer.io

Save up to $1,800

Get Customer.io deal
logo sendgrid

SendGrid

Marketing and transactional email delivery service.

Who is Customer.io best for according to our reviewers?

  • Lead Nurturing Teams: Teams that focus on lead nurturing can use Customer.io for its user experience, documentation, and customer support. It can be complex depending on their needs, but the excellent user experience, documentation, and support team provide solutions

  • Dissatisfied Users: Some users may find Customer.io not very user-friendly and may experience issues with the delivery rate of notifications, customer support, and high integration costs. Despite these issues, they may still find value in its email automation capabilities.

  • Tech-Savvy Non-Developers: Customer.io is a perfect fit for tech-savvy non-developers as it balances being a visually appealing platform with limited customization and a comprehensive tool that needs significant developer support. It allows them to manage onboarding, loyalty processes, and much more

  • Marketing Teams: These teams can utilize Customer.io for its user-friendly nature and excellent UI/UX. It allows them to set up and automate email campaigns based on different user attributes, making it a valuable tool for communication with clients and onboarding new users

  • SaaS Businesses: Customer.io is highly suitable for SaaS businesses as it's easy to integrate with data sources like Segment and straightforward to access attributes and events. It's perfect for running onboarding or lead nurturing campaigns

  • 12 months free for Startup Plan on Customer.io

    Get 12 months free for Startup Plan on Customer.io and up to $1,800 savings with Secret.

    Get Customer.io deal

    Customer.io Reviews

    4.5

    Customer.io rating

    24 Customer.io Reviews

    4.5 (24 reviews)
    Leave a review
    • Randy Garcia

      Unleashing Email Marketing Power with Customer.io

      I am pleased with Customer.io as it instills confidence in me when sending transactional emails or marketing newsletters. The platform has a steep learning curve, but once I got the hang of it, it proved to be incredibly powerful. It enables me to accomplish tasks that seemed impossible with other email clients. The drag and drop editor is superior and operates more smoothly than others I've used. However, the downside is that it's somewhat expensive. Initially, it can be overwhelming due to its numerous features, but it's just a matter of overcoming the learning curve. I switched to Customer.io because it offers a more comprehensive solution, allowing our marketing team to have greater autonomy in designing email flows and newsletters.

      July 7, 2024

    • Jeremy G

      Superb Marketing Automation Tool with Exceptional Support Team

      I mainly use Customer.io for lead nurturing and I'm confident they'll improve their product with better reporting features. I've tested many marketing automation tools and Customer.io stands out for its user experience, documentation, and customer support. It can be complex depending on your needs, but their excellent user experience, documentation, and support team provide solutions. There are some missing features like cohort analysis, but I'm hopeful they're working on it. I switched to Customer.io because I needed a tool with genuine Marketing Automation Platform features.

      June 29, 2024

    • Anna Davis

      Efficient Integration: Customer.io Streamlines Workflow for E-commerce Managers

      As an e-commerce manager, I appreciate how Customer.io integrates seamlessly with our existing systems. This has made our workflow more efficient and less prone to errors

      June 23, 2024

    • Zoe Williams

      Reliable and Efficient: A Long-Time User's Review of Customer.io

      As a long-time user of Customer.io, I can attest to its reliability and efficiency. It has never failed me in sending timely and personalized emails to our customers

      June 15, 2024

    • Easton D

      Unexpected Data Sharing: My Experience with Customer.io

      As a valued customer of Celsius Network, I had an interesting journey with Customer.io. They showcased a unique approach to managing contacts, which led to a situation where an employee utilized my data and shared it with an unexpected third party. This was a surprising twist that added a layer of intrigue to my experience!

      June 9, 2024

    • Rhodes G

      Fraud Alert. Avoid Customer-io.

      I believe that customer-io is a scam. They charged us for inactive users and even users without emails! Despite removing them from our code base, they continued to create new profiles and charged us for it.

      June 3, 2024

    • Keith

      Mastering Email Automation with Customer.io

      I find customer-io not very user-friendly, but it's one of the best for email automation. I like running my drip campaigns on it and managing their complexity. However, it needs a dedicated developer, which isn't always possible. I think there should be some automated codes.

      May 26, 2024

    • Jerry Garcia

      Streamlined Email Marketing with Automation and Targeting

      its automation features have significantly streamlined my email marketing campaigns. The software's ability to segment and target specific customer groups has greatly improved our engagement rates

      May 18, 2024

    • Brandon Garcia

      The Power of A/B Testing in Customer.io

      As a digital marketer, I find the A/B testing feature of Customer.io extremely useful. It allows me to test different strategies and choose the most effective one

      May 12, 2024

    • Brittany J

      Slow Email Support, Debugging Challenge with Customer.io!

      In my updated review, I acknowledge that the email support of Customer.io is helpful, although I still believe there are many standard features missing compared to other email tools. In my original review, I criticized their customer support for only being available via email and taking over 24 hours to respond. I suggested they should offer live chat or limited use of Zoom or calls. I stressed that if they only provide email support, responses should be within hours, not a day or more.

      May 4, 2024

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