Klaviyo Reviews & Insights

Score8.6 out of 10

254 Reviews and Ratings

Overview

Synthesised from 10 reviews | Last Published April 23, 2026

This product assessment is based on a synthesis of 30 recent Klaviyo product reviews across three dimensions: overall satisfaction with areas for improvement, the impact of behavioral data on customer understanding, and comparisons to alternative products. Klaviyo is a marketing automation platform with a strong emphasis on leveraging behavioral data for targeted campaigns. A significant majority of reviewers, 9 out of 10, value Klaviyo's behavioral data capabilities, citing its ability to provide insights into customer purchase patterns, channel attribution, and engagement timing. This data is used to re-engage customers and optimize marketing strategies through A/B testing. However, some reviewers (2 of 10) have noted the platform can be expensive and others (2 of 10) have experienced bugs and glitches. When considering alternatives, reviewers mentioned Intuit Mailchimp and Constant Contact, but these received mixed sentiment, suggesting that Klaviyo's feature set and data-driven approach offer a distinct value proposition despite the noted drawbacks.

Pros

Powerful behavioral data insights for understanding customer behavior
Enables targeted marketing efforts through data-driven segmentation
Facilitates A/B testing for marketing optimization
Strong capabilities for customer re-engagement
Comprehensive platform for marketing automation

Cons

Reports of bugs and glitches within the platform
Pricing can be perceived as expensive

View All Reviews

Klaviyo Reviews

105 Reviews

The best email platform for shopify businesses

Rating: 9 out of 10

Incentivized

April 30, 2025

Use Cases and Deployment Scope

We use Klaviyo as our CRM and also our email provider to create email flows and also campaigns, we have about 20 active flows, and send about 2 campaigns a week. We also use it to segment customers, and integrate with other tools. We have been using it for over 3 years since we launched

Pros

Segmentation
Deliverability
customer support

Cons

Pricing is expensive
sometimes glitchy
A/B testing can be improved

Likelihood to Recommend

Klaviyo is great for any business built on shopify, i think it could work for a small to medium sized business, but can't speak beyond that. . We also use it to segment customers, and integrate with other tools. We have been using it for over 3 years since we launched

Verified User

C-Level Executive in Marketing (1-10 employees)

Vetted Review

4 years of experience

Klaviyo - the jack of all trades master of most

Rating: 8 out of 10

Incentivized

April 22, 2025

Use Cases and Deployment Scope

We use Klaviyo to send promotional emails and text messages to our subscriber base. In addition, we have a series of automations set up in Klaviyo that are triggered when subscribers and/or customers perform a certain action (e.g. when they abandon their cart at checkout we have an abandoned cart flow set up in Klaviyo to help push them over the purchase line)

Pros

Tracks email attributed revenue
has a rich knowledge base
Segments audiences based on behavior incredibly well

Cons

Billing could be improved. They bill for every profile in your database regardless of how active/inactive they are
They could do with phone support
Deliverability could be improved, especially for accounts that recently migrated from another esp.

Likelihood to Recommend

Klaviyo houses all the email and associated sms numbers of our subscribers. This is incredibly convenient as I can create text campaigns based on email promotions and vice versa. They also have great popup forms that can seamlessly integrate to our website, which are also conveniently tied to the email lists and segments in Klaviyo.

Verified User

Vice-President in Marketing (11-50 employees)

Vetted Review

1 year of experience

No other product can compare to Klaviyo for e-commerce businesses

Rating: 9 out of 10

Incentivized

April 17, 2025

Use Cases and Deployment Scope

We use Klaviyo as a core component of our marketing strategy to communicate with our audience, drive engagement, and ultimately increase product sales. As a small business, Klaviyo allows us to compete with larger brands by providing robust tools for segmentation, automation, and personalized communication—all within a user-friendly interface. We use weekly email campaigns with targeted segments as well as many custom flows to automate sales in an effective, but very hands-off way.

Pros

Segmentation based on user behavior and characteristics
Automated Flows
Design tools to make visually appealing campaigns

Cons

Setting up certain features requires complicated coding
Inability to enter flows more than once for certain triggers
It's not clear how to reduce the size of emails to avoid "clipping"

Likelihood to Recommend

Klaviyo is the gold standard for product-based e-commerce businesses. There is no other platform that comes close to the capabilities offered. However, for businesses that are not selling products online, much of the features are overkill and not necessary.

Verified User

C-Level Executive in Marketing (1-10 employees)

Vetted Review

6 years of experience

Powerful Scalable Email Marketing Made Simple with Klaviyo.

Rating: 8 out of 10

Incentivized

April 14, 2025

Use Cases and Deployment Scope

We use Klaviyo for email marketing, automations like abandoned cart and first purchase flows, segmentation, and personalisation to drive conversions and customer retention.

Pros

Automations.
Event Tracking.
Metrics and Insights.

Cons

Some of their IPs are on spam lists.

Likelihood to Recommend

Klaviyo is excellent for email marketing, especially with flows and split testing. Its seamless integration with Shopify makes automation and personalisation easy to manage. We haven’t used KDP extensively, but it appeared complex at first glance and may not be as intuitive for less technical users.

Herschel Berkowitz

Head of Digital and eCommerce at Decofurn Furniture (501-1000 employees)

Vetted Review

3 years of experience

View profile

Klaviyo has the power you need

Rating: 10 out of 10

Incentivized

April 9, 2025

Use Cases and Deployment Scope

We use Klaviyo to send email and SMS campaigns to e-commerce customers that sign up on our website. We also set up several automated campaigns, including a Welcome Series, Cart Abandonment Series, Lost Customer Series, and Browse Abandonment Series among others. Klaviyo enabled us to increase our sales through direct campaigns and automated campaigns plus implementing features like sending a customer fewer emails so they don't unsubscribe completely and targeting campaigns by frequency of interactions, products purchased, or loyalty standing. It was easy to set up our Reviews and Loyalty apps to run through Klaviyo too. The platform is easy to navigate and use without having to spend time learning from videos or help files, we were able to just jump right in and use it.

Pros

Very easy to setup Klaviyo with Bigcommerce for email & SMS capture, comes with templates that are simple to edit and publish.
Very easy to set up Klaviyo with other 3rd party apps like Yotpo Reviews and Loyalty, giving you easy access to send emails based on loyalty points or asking for a review.
Automated campaigns are a breeze! They come with preset templates to get started quick. Including a Welcome Series, Cart Abandonment Series, Lost Customer Series, and Browse Abandonment Series among others.
The platform is easy to navigate and use without having to spend time learning from videos or help files, we were able to just jump right in and use it.
Great features like targeting based on anything available in your data, including products purchased, loyalty standing, interactions, etc.

Cons

It's hard to say where there is room for improvement, the price tag could be improved but you could say that about anything.
It was a bit difficult to figure out how to manually unsubscribe contacts, I had to make a bookmark to the page, it just wasn't obvious where to go.
Some SMS contacts got tagged as being in another country/time zone which did mess up our SMS campaigns until we figured it out and manually fixed those contacts. We only sell in the US. One of them was in-house, so we knew for sure she wasn't in another country and hadn't been at any point in time. Others we found had US addresses as well.

Likelihood to Recommend

Klaviyo is well suited for email campaigns and SMS campaigns. It is great for automated campaigns including cart abandonment, browse abandonment, welcome campaign, lost customer campaign, loyalty campaigns, product review collection, and more. It is easy to use and easy to set up all of the above as well as pop ups on your website to collect emails and phone numbers for SMS and special campaigns even. We did not feel it was necessary to use it for direct customer communications about their orders but you could use it for that too if you wanted to, keeping in mind you pay per the number of emails you send out (wink wink).

Verified User

Manager in Marketing (51-200 employees)

Vetted Review

8 years of experience

Expensive but worth it if you devote time to learn it

Rating: 9 out of 10

March 21, 2025

Use Cases and Deployment Scope

We use Klayvio for email marketing and sms marketing. We don't even scratch the surface with it's capabilities - we only use the most basic functions.

Pros

analytics
email marketing
sms marketing

Cons

ease of use
ability to make to the emails look different

Likelihood to Recommend

it's a good program...but very expensive for someone that just wants the basics and doesn't have the time to learn about all of the advanced features

Jenn Raines

Owner in Corporate at Quirks of Art - www.kinksandquirks.com (1-10 employees)

Vetted Review

5 years of experience

View profile

Klaviyo has become our priority for marketing

Rating: 9 out of 10

Incentivized

March 7, 2025

Use Cases and Deployment Scope

As a tabletop gaming company, we use Klaviyo to manage email marketing by sending targeted newsletters to customers, or to share product information with retailer and distributor partners. Klaviyo enables automated flows, such as welcome emails for new subscribers and reminders for abandoned carts. The flows our customized for timely and relevant messaging that help drive engagement, sales, and foster stronger relationships with customers and business partners through seamless automation.

Pros

Newsletters
Automated Flows
Segmentation
A/B Testing

Cons

Bugs / Glitches
Analytics dashboard
Visual breakdown of link activity is the sum of a URL clicked across the newsletter, rather than each individual link clicked

Likelihood to Recommend

Klaviyo performs exceptionally well as a newsletter service, helping our tabletop gaming company educate customers, retailers, distributors, media, and press on our product offerings and events. It has significantly boosted sales by allowing us to provide targeted and engaging content. Klaviyo’s robust data reporting allows us to track newsletter attribution to Shopify sales, offering invaluable insights. Customer service is fantastic, always helpful and responsive. However, recurring bugs and glitches—such as issues with font size, color, text block sizes changing on their own, or text disappearing entirely and forcing you to restart a section—can be very frustrating, impacting the smoothness of the user experience. The gains far outweigh the downsides.

Verified User

Project Manager in Marketing (51-200 employees)

Vetted Review

1 year of experience

A must have for any email marketer

Rating: 10 out of 10

Incentivized

February 18, 2025

Use Cases and Deployment Scope

I'm a brand strategist at a Marketing agency and I use Klaviyo for Email marketing for almost all our clients.

One thing that Klaviyo absolutely aces is the ease of customization. I've struggled with customization a lot over shopify emails and thats something that is very easy over Klaviyo. It is also super easy to import list and segments and all over integration with other applications and softwares is also super smooth.

Analytics dashboards are also a big plus.

Pros

The first thing would be customization. It's easy to create columns, add different sections, have multiple links. This helps in creating mails that are more engaging.
The addition of dynamic content make Klaviyo the best. The fact that I can keep dynamic products, and put in much more kinds of dynamic content increases the chances of all over conversions by a huge margin.

Cons

One thing that Klaviyo can do better is adding multiple links to a picture, right now there is an option to cut images in parts to put seperate links but I'd love to see something like image mapping. It would be a game changer.
Klaviyo has stopped integration with Yotpo, I either want to see Klaviyo improve on the SMS front and provide better service for SMS marketing or renew the integration option with Yotpo.

Likelihood to Recommend

Klaviyo is the bread and butter for anyone working in email marketing. Not using Klaviyo would be the same as a football star saying I don't wear Addidas Or Nike Shoes.

Klaviyo covers everything needed for email marketing except for a few tiny bits like the lack of image mapping.

Verified User

Strategist in Marketing (1-10 employees)

Vetted Review

4 years of experience

An easy and accessible marketing tool.

Rating: 10 out of 10

Incentivized

February 17, 2025

Use Cases and Deployment Scope

We use Klaviyo for email flows and campaigns. The flexibility and possibilities in flows make keeping timely contact with our audience a breeze. The email designer is simple, but allows for all the customization you'd want from an email builder. The ability to switch between mobile and desktop specific designs is a feature many don't offer. The integration to our store and metrics are robust, work as intended, and provide the insight we need to adjust our flows and campaigns accordingly. Highly recommend.

Pros

Flows
Campaigns
Metrics

Cons

Managing active accounts
Dark mode for mobile stlying

Likelihood to Recommend

It is great for keeping constant contact with your audience. It has everything you need to automate all points of contact. I'm not sure what it isn't well suited for.

Mark Hager

Marketing Specialist in Marketing at A Cut Above Uniforms (11-50 employees)

Vetted Review

1 year of experience

Verified on LinkedIn

6 year Klaviyo customer

Rating: 10 out of 10

Incentivized

February 3, 2025

Use Cases and Deployment Scope

I am the Director of Email Marketing, and Klaviyo is who we use exclusively for email and SMS outreach. Klaviyo ensures we reach the right customers, at the right time, with the right message.

Pros

Segmentation
Data collection
Automated flows

Cons

Customer support
App for SMS
Lower prices

Likelihood to Recommend

It's everything under one roof. I have no reason for other vendors for email/SMS.

Verified User

Director in Marketing (51-200 employees)

Vetted Review

Loading Reviews List....

Klaviyo has the power you need

Rating: 10 out of 10

Incentivized

April 9, 2025

Use Cases and Deployment Scope

Pros

Very easy to setup Klaviyo with Bigcommerce for email & SMS capture, comes with templates that are simple to edit and publish.
Very easy to set up Klaviyo with other 3rd party apps like Yotpo Reviews and Loyalty, giving you easy access to send emails based on loyalty points or asking for a review.
Automated campaigns are a breeze! They come with preset templates to get started quick. Including a Welcome Series, Cart Abandonment Series, Lost Customer Series, and Browse Abandonment Series among others.
The platform is easy to navigate and use without having to spend time learning from videos or help files, we were able to just jump right in and use it.
Great features like targeting based on anything available in your data, including products purchased, loyalty standing, interactions, etc.

Cons

It's hard to say where there is room for improvement, the price tag could be improved but you could say that about anything.
It was a bit difficult to figure out how to manually unsubscribe contacts, I had to make a bookmark to the page, it just wasn't obvious where to go.
Some SMS contacts got tagged as being in another country/time zone which did mess up our SMS campaigns until we figured it out and manually fixed those contacts. We only sell in the US. One of them was in-house, so we knew for sure she wasn't in another country and hadn't been at any point in time. Others we found had US addresses as well.

Likelihood to Recommend

Verified User

Manager in Marketing (51-200 employees)

Vetted Review

8 years of experience