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Unfortunately, we can’t recommend Klaviyo for several reasons. Basically, you constantly get the impression that their only goal is to push customers into a higher plan and keep them there.

1. Many fake profiles are created that inflate the plan count.
2. Deleting profiles is very cumbersome—you have to create a segment to do it.
3. Even then, the option to delete is still missing, and we can only suppress the profiles. If deletion is possible, the option is very well hidden.
4. Support isn’t helpful; they write long messages that don’t make sense and refer you to confusing FAQs. Or they end the conversation while you’re still in the middle of following their instructions.
5. Overall, we’ve tried multiple times over the past few months to resolve our issues across various stores, but we haven’t gotten anywhere. We’re still on a higher-tier plan and haven’t been able to delete any profiles.

Extremely unhappy. Klaviyo is an OK email service, it is not super user friendly or smooth, it get's the job done.

Last year, my monthly price went from 80usd to 150usd.
And if I pause and resubscribe, it would be 200usd.

That is a 250% price increase.

During slow periods now, I cant keep my costs low, because then they will squeeze more money from me.

I would be very cautious picking klaviyo today.
They are in a phase now of just capitalizing the living hell out of their customers.

I am looking very hard to get out, and never come back. My energy to trust the company even if they adjust the prizing in the future would not be there.

So be cautious, if you get on their payroll, they will use you as hard as they can, and it is probably not great for either your or their business long term.

they are moving into a charge method when they want to charge you like they do provide the sales, but they really don't. They help send emails, the rest of all services are nothing unique at all. Meta owns their traffic and sells it to you. Klaviyo helps you communicate with your costumers, but they want to charge you like they also own the traffic.
But they don't.
Your customer lists are yours.
Not klaviyos.
They do not bring this value.

Be careful, and if you sign up, get ready to get used as hard as they can to get all the money out of you. You will end up in a annoyed frustrated position, the more dependent you get on them, the more they will take advantage of you as time goes by.
Think of it like telling a secret to your best friend, and then they will start blackmailing you not to tell it to somebody else, that is the feeling you will have in partnering with klaviyo.

Klaviyo has been a very helpful platform for managing our email marketing and customer engagement. The segmentation, automation flows, and reporting tools make it much easier to understand customer behavior and improve campaign performance.

What impressed me most is the quality of the customer service. The support team is professional, responsive, and always willing to provide clear guidance when we have questions. Their help makes the platform much easier to use, especially when optimizing flows, troubleshooting issues, or improving campaign strategy.

Overall, Klaviyo is a powerful and reliable tool, and the excellent customer support makes the experience even better. Highly recommended for businesses that want to build stronger customer relationships through email marketing.

What we love about Klaviyo, apart from being user-friendly and having great analytics, is that they regularly provide training to help us use the app more effectively. Highly recommended.

Klaviyo has been an amazing product for us in building our business! The integration with Shopify has been fantastic. We have seen good growth, and as we learn how to build better flows and email campaigns, we are very excited for the future of our Gel-out business.

If giving this app 0 stars were possible, we would seriously consider it.

Seems like entire system built to rip you off.

We paused our use of Klaviyo for a while. When we returned, our paid plan had been deactivated, which was understandable. However, we then encountered a billing loop that made it impossible to clean up our account without first paying for profiles we do not intend to use.

Here is the issue:

1. Without an active plan, we cannot suppress profiles manually, in bulk, or through the API.
2. We also cannot reactivate the account on the free plan because the number of active profiles exceeds the free-tier limit.
3. The only option presented is to purchase a paid plan covering the entire existing profile count first, even though the purpose of reactivating the account is to suppress inactive profiles and reduce that count.
4. If we pay for the oversized plan, suppress the profiles, and then downgrade, the initial payment is not refunded or credited toward future invoices.
5. We also tested bulk suppression through the API. The API accepted the request and marked the job as complete, but all profiles were skipped:

* Total count: 100
* Completed count: 0
* Skipped count: 100

6. We found similar reports in Klaviyo’s community forums, but we could not find a practical self-service solution.
7. Access to customer support is also restricted without an active paid plan, which makes resolving the issue even more difficult.

This creates a frustrating circular problem: we cannot suppress profiles without reactivating the account, and we cannot reactivate the account without first paying for profiles we specifically want to suppress.

Requiring customers to pay for an oversized plan before allowing them to remove inactive profiles feels unfair and unnecessarily restrictive. Businesses should not have to pay a substantial fee simply to regain access to basic account-cleanup tools.

Klaviyo when used properly is a game changer - just make sure that you are sending emails that people actually want to open - dont only use email marketing to promore sales and specials.

We use Klaviyo app for more than 5 years and it did help us recover the carts left by sending a series of abandoned cart emails. Welcome email, post-purchase follow-up email, and other customised emails, all help us bring in sales and grow steadily. Thank you so much for Klaviyo app which keeps releasing new features !!

Everything just works - from popup to purchase
We run a premium dog care store in Bulgaria and Klaviyo has become the backbone of our email marketing. The Shopify integration synced our subscribers, orders and events flawlessly, in both directions. We built a welcome flow with a discount code, an abandoned checkout flow and a signup popup, all connected to the store data without a single technical issue.
What impressed us most: the level of control. Smart targeting rules for forms (scroll depth, exit intent, excluding existing subscribers and checkout pages), per-message Smart Sending settings, and clean sync settings that just make sense. Support for a non-English store (Bulgarian forms, emails and error messages) worked perfectly too.
If you are serious about turning store visitors into repeat customers, this is the tool. Five stars, well earned.

Klaviyo has been really easy to use for my store. The automations make a huge difference—especially the abandoned cart flow, which helps bring customers back without me doing anything. It’s a true set‑and‑forget system that saves me time so I can focus on other parts of the business.