Reviews (3,375)

Overall rating
4.7
Counts per rating level
  • 88% of ratings are 5 stars
  • 2% of ratings are 4 stars
  • 1% of ratings are 3 stars
  • 1% of ratings are 2 stars
  • 8% of ratings are 1 stars
What merchants think

Feedback submitted

Merchants highly recommend this app as a best‑in‑class email and SMS platform with seamless Shopify integration. They find it intuitive for solo founders and small teams to build campaigns, segments, and automated flows that reliably drive extra revenue. Powerful segmentation, detailed analytics, and “set‑and‑forget” automations (welcome, abandoned cart, post‑purchase, back‑in‑stock) are key strengths, along with strong support, training, and integrations.

December 9, 2019

We luckily moved from Mailchimp months before they apparently cut ties with Shopify.

This application is certainly a step up in many regards with clean and tight integration from Shopify, enabling you to easily filter down to highly optimized people on your list and the visible layout of your automations/flows is really helpful and intuitive. Having all of that integration available in your automations/flows is simply fantastic.

Live chat is helpful too for minutely detailed questions that are not necessarily clear as to how certain definitional conditions may work.

The drawbacks I have -- 2 minor and 1 major:

MINOR:
(1) If you are sending out a campaign and you want to send it to a particular audience, you cannot create the audience in the campaign conditions itself. You have to first go create the segment (or new list) and then go back to your campaigns and assign that newly created segment as the target of your email. In mailchimp, you could just create the definition of the person who met 'x' conditions in the campaign builder itself rather than having to leave it, go create a stagnant group/segment, and then return back to the campaigns to send the campaign to that new group/segment. Would think/hope that Klaviyo would've implemented this by now (been with them for a little over a year), as that seems to be a quite helpful method of streamlining things when sending a campaign.

(2) You're limited on the # of test emails you can send. So, if you use glockapps, for example, to test if your emails are going to inboxes, you are limited to something like 100 test campaigns per day for the purposes of them limiting spam, I believe. It's prima facie understandable, but after a client has been with them for a certain amount of time and they see a reputable send rate/open rate/click rate, etc., it would be helpful to have this limit lifted so as to not handcuff the people who are actually attempting to send quality emails by testing them before sending to make sure they arrive in inboxes.

MAJOR:
We have had a LOT of people on our list email us about after clicking a link in an email, google gives them a warning that the site they're linking to might not be safe. Klaviyo adds a "trk" before the links in the URL when you click on links and seems to effectively re-direct to the actual link after it runs its tracking to provide you analytics (try it and see).

This error seems to appear primarily (if not excusively) for gmail accounts, which is a large portion of emails on our list (and will probably increase in that direction). So, it's quite problematic for us. We've inquired multiple times and there has been no reasonable solution provided. This was the primary response from Klaviyo:

"At this time, this is not something we can set-up for you but you would need to set-up a reverse proxy. That handles the SSL traffic and sends it over to us. Now you can also use a 3rd Party CDN to accomplish this, i.e. Cloudflare, Fastly, KeyCDN, Cloudfront, etc."

Regardless if you keep the global tracking feature on or off when sending campaigns or flows, this "trk" feature shows up and creates this issue. This may not be a big issue for you (though I think it would for most), but it certainly is for us and remains unaddressed with no reasonable resolution for us to pursue (and seems like something we should not have to resolve on our end -- the above response is Greek to me).

I can't believe we're the only ones experiencing this issue with our audience. Anyone else?

Otherwise, a great product.

Pax.

Catholic Productions
United States
Over 1 year using the app
November 7, 2022

This is about day 90 of a switch from Mailchimp. While Klaviyo appears to have more long term potential and a more transparent (but more expensive) pricing structure, it also appears that some functionality is still in beta. For example, I continue to struggle with abandoned and add to cart flows triggering properly. We are a SMB and my sense is that this product may be best suited from larger firms with dedicated marketing teams. I will remain with them for now simply that the cost of switching back to the Chimp is high. Then again, it might just be me.

Vintage Passementerie
United States
3 months using the app
October 21, 2019

It's good, until it isn't. Our account was suspended today with no warning whatsoever - apparently sending to non engaged customers. It's been 8 hours and NO response from their customer service team. Totally unacceptable.

MDNA SKIN
United States
About 1 year using the app
October 1, 2019

The app itself seems to be doing what it should - and I think better than Mailchimp. This one has better features. But the costumer service has so far been really bad. I have contacted them for 2 weeks now and no reply. Is a bit frustrating to pay for a product, and ending up hirering people from outside to help you out...

Mondo Kaos
Denmark
3 months using the app
June 3, 2025

Decepción total. Tiempo, dinero y energía perdidos.

Instalar Klaviyo ha sido una de las peores decisiones para mi tienda online.

Primero, la app importó automáticamente más de 3.700 contactos sin mi consentimiento, lo que superó el límite gratuito y me quieren cobrar más de 80 € al mes solo por esos contactos que yo ni siquiera pedí importar.

Estuve 5 días configurando el flujo de carrito abandonado, y aun así nunca funcionó correctamente. La interfaz no es nada intuitiva, y aunque todo estaba en español, los correos se enviaban en inglés, confundiendo a mis clientes.

Peor aún: envía recordatorios de carrito abandonado a clientes que YA compraron, lo cual genera confusión y quejas. Algunos clientes incluso me enviaron capturas preguntando por qué reciben esos correos después de haber pagado.

Hice varias pruebas con correos personales y números reales, y nunca me llegaron ni los emails ni los SMS, lo que demuestra que el flujo no está funcionando.

En resumen: una vergüenza de aplicación, un fraude. Solo me ha hecho perder tiempo, dinero y energía. Ahora tendré que desinstalarla y volver a empezar con otra herramienta. No la recomiendo en absoluto.

21gramos Tienda a Granel
Spain
11 days using the app
Klaviyo replied June 5, 2025

Lamentamos mucho que haya tenido una experiencia negativa con la plataforma. Nos encantaría solucionarlo y ayudarle a configurar su cuenta. Como es nuevo en la plataforma, tiene acceso a nuestro Equipo de Soporte durante 60 días y estarán encantados de ayudarle con los problemas que nos haya indicado!

March 4, 2024

Klaviyo is good except one major disadvantage. I am very disappointed that it cannot generate "Buy X Get Y" type coupon code. This is a very very common type of discount code and it can also be generated in Shopify. However, if i generate in Shopify, then, i cannot set a limited time offer in the FLOW.

I really hope Klaviyo can solve this issue in the very near future. Then, i will add the review stars back.

Big Boss Print
Hong Kong SAR
Over 1 year using the app
November 8, 2023

Tool is good but Klaviyo should solve the t-online.de delivery problem (bounce) finally!
The problem has existed for ages and t-online addresses are common in Germany. With other providers, delivery to t-online addresses works!

CHAMOON
Germany
13 days using the app
September 16, 2022

I want to know where I can find customer service help, it's been a month since I requested help via email and no one has replied to me.

SunnyHair
United States
About 1 month using the app
Klaviyo replied September 19, 2022

Hey there! That's no good - we're here to help. Can you forward your request to feedback@klaviyo.com? We'd love to get you the help you need.

November 28, 2025

SUPER EXPENSIVE STILL HAVE ONE STORE RUNNING KLAVIYO BUT IF YOURE DOING MULTIPLE ITLL SOON ADD UP

VETTONA®
Australia
Almost 2 years using the app
Klaviyo replied December 1, 2025

Thank you for sharing your thoughts. We appreciate your feedback. We understand that pricing can be a concern, especially when managing multiple stores. If you have any questions or would like to discuss your setup, our support team is here to help, and you can reach out to us at https://www.klaviyo.com/support. Your input helps us continue to improve for everyone.

August 28, 2024

Nidhiratna
United States
About 2 months using the app