Klaviyo: Email Marketing & SMS

Email, SMS, and more - a unified customer platform

  • Popular with businesses in the United States

Free plan available. Additional charges may apply.

App highlights

  • Up-to-date tech: works with the latest themes


4.2 of 5 stars

The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.

  • 5 of 5 stars
    75% of ratings are 5 stars
  • 4 of 5 stars
    8% of ratings are 4 stars
  • 3 of 5 stars
    2% of ratings are 3 stars
  • 2 of 5 stars
    3% of ratings are 2 stars
  • 1 of 5 stars
    13% of ratings are 1 stars
1 - 10 of 1576 reviews

Ferne Boutique

Location United States

I love this platform! Compared to other email and SMS platforms, Klayvio has the best features and is very easy to use.

Scholl UK

Location United Kingdom

I have been working in Email Marketing for more than 8 years and I think that Klaviyo is one of the best platforms.


Location United States

Easy to use and so much amazing marketing templates and campaigns to start and continue email marketing.

The Furry Nomad

Location Australia

Great and intuitive app. I'm not sold on the open rate when compared to other services, however the creation and building aspect is best in the biz.

Alex Rome Sound

Location United States

AVOID AT ALL COSTS! POSSIBLE SCAM (read this before using this service) Klaviyo has been nothing but trouble since we've started using it about two years ago. Let's start with emailing. Open rates are horrifically low when emailing our most loyal customers with this service. We were able to triple our open rates immediately by using a different service. My first issue with Klaviyo is poor support. Live chat takes a day or two to respond to simple and urgent requests and email support is appalling. In two years, I've not gotten a single written reply to any questions I've asked. All they do is send you blogs or pre-written responses that do anything but answer your questions. Waiting for simple (real) answers from Klaviyo support is so frustrating and has suspended the email side of my business by days or weeks at a time. Lastly, I could not even cancel this service without issues! YOU CAN NOT CANCEL BILLING FOR YOUR ACCOUNT! You can only 'request' to cancel billing for your account. I 'requested' to cancel billing for my account and was denied for whatever reason and therefore was billed over $550 for the next month. What kind of scam is this? The only way out of this scam was to dispute the charge. I hate disputing charges because of what disputes can do to a business but what was I supposed to do? I asked their support 6 different times to refund me and cancel my account and kept having to wait days for the same pre-written response that kept referring me to a blog. I literally begged over and over for a human to respond to me regarding this issue and they kept sending the same reply to me on how to cancel my account. I've never experienced this type of interaction with a service that costs as much as Klaviyo. I hate disputing charges and would do anything to avoid leaving poor reviews on a service because I understand how hard it is to build a business but these practices aren't safe. Proceed with Klaviyo with caution.

Developer reply

June 22, 2022

Hey there! So sorry to hear about these issues - it's certainly not an experience we want for any of our customers. Our support team noted there are 2 different accounts under your brand name. Can you please email feedback@klaviyo.com with details on which piece of feedback relates to which account so we can dig in and support you here? Much appreciated!


Location Pakistan

Great Email Marketing Tool made life easier the analytics are great and very useful for entrepreneurs

Nook Vibrant Kitchen

Location Canada

I used mailchimp for years but switched over to Klaviyo 10 months ago and couldn't be happier. I've learned so much about automated flows and segmentations from their blog. Can't recommend enough!


Location United States

Good for what it is. Would recommend to anyone looking for an email marketing tool to pair with Shopify.

Clean Energy

Location United States

Really helpful in providing a quality email to customers and targets as well as transparency of customers and targets engaging. Easy to use. I use it often.


Location United States

Great app. I highly recommend Klaviyo marketing for any e-commerce store owner who wants to scale their sales through email marketing with powerful automated flows.

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