Klaviyo: Email Marketing & SMS

The platform functionality might be powerful, but the user experience is incredibly frustrating.

When encountering technical issues with dynamic variables in templates, there is absolutely no way to get basic support unless you upgrade to a paid plan. Worse, when trying to log into the Klaviyo Community to post a question, the website gets stuck in an infinite login redirect loop due to cross-domain cookie issues.

As an e-commerce merchant, spending hours fighting broken authentication logic and paywalled support instead of resolving a simple issue is completely unacceptable. Highly disappointed with the customer experience.

Klaviyo urgently needs to take inspiration from Canva because right now the editing experience feels outdated, clunky, and honestly exhausting.I’d honestly go as far as saying that Klaviyo is one of the worst apps I’ve ever used in my entire life when it comes to editing anything. The email marketing editor is unbelievably complicated for absolutely no reason. Nothing about it feels intuitive. Every simple task turns into a frustrating, time-consuming mess.

It genuinely feels like the product was designed by engineers who never actually had to create a real marketing email themselves. The UX is terrible, the workflow is confusing, and basic editing actions feel painfully overengineered. Instead of helping you move fast, the platform constantly fights against you.

What’s shocking is that email marketing should be simple in 2026. Apps like Canva proved years ago that powerful tools can also be clean, visual, and easy to use.

I never write negative reviews about apps. In fact, this is probably the first time in my life I’ve felt the need to leave one. But the experience was genuinely that bad. For a platform this expensive and this popular, the editor is embarrassingly bad.

"Unable to checkout. Try again later." Can't upgrade my account because of Klaviyo's system issue. Can't contact support until I upgrade. Can't upgrade because of a system error. Complete and utter joke.

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.

I uninstalled it. A large number of bots from Miami are signing up and creating fake email addresses, and there’s no solution. I even suspect they’re doing this themselves to pressure you into upgrading your plan.

They make it impossible to clear all inactive profiles to susspended. This way they can keep increasing your monthy charge due to profiles. The app is also VERY HARD TO USE. We are an IT company and we find it backwards and HARD. FIND ANOTHER SOLUTION!!!!!! . Klaviyo is outdated and bad

i have already uninstalled the app, it is still charging my company card for service fee

Can literally never get Klaviyo to do what I need it to do. So disappointed to spend eleventy billion dollars a month on this. Just today, created a segment in Shopify to import to Klaviyo and it shows up in Klaviyo with ZERO people on it.

Nicht empfehlenswert. Kein Support, schlechtes Interface, grundlose Kündigungen.

Klaviyo stated they have protections in place to keep bots from signing up creating fake emails. I am a small business and my email is full of fake emails. I try to delete them but they don’t disappear. I can’t keep ahold of any one in support until I upgrade and pay a monthly fee or lower the amount of emails in my account which is not working. I guess you can’t get help unless you pay them. It is a difficult platform to use also. The best option is to delete my entire account and go to a different email provider. I don’t want to work with a company that can’t help unless you pay them!!