Shady business practice and terrible customer service The worst customer service I have ever experienced. The are quite literally holding money to ransom and their customer services team are robots which simply quote their nonsensical policies. Shady business practice, stay well clear. I paid an invoice in advance for 1 month of email flows ($100 which is criminal itself) and they did not activate my account. They are now claiming that they will hold onto this money indefinitely until we agree on a separate dispute which is much less - which they did not even bring up until they took my money. So they are in essence holding my money to ransom for a completely separate matter and refusing to provide services until in their mind it’s settled. The separate issue being that they want me to pay a month of services which I cancelled and didn’t use. Customer service is appalling, I was speaking to someone that called themselves “Ninja” (what do you expect….) and has zero sense of being reasonable. Update: Quite comical they have responded but made no comment on the fact they are still holding onto a payment I made for a service which they are not fulfilling. It’s like a company saying you owe them £5 which you disagree with, and paying them £100 for another service - they then hold onto the £100 without giving you the latter service until you pay back £5 separately. Unbelievably stupid.

shocking! As a struggling small business , I thought Klaviyo was the answer! But instead it created a whole load of new problems. I have a mailing list of 70,000 subscribers which I have built up over 20 years however only about 3000 are actually active - a lot of spam , Amazon and inactive emails! Klaviyo took £500 for this immediately, it was “imperative” I sign up with them before 1st but it took them over a week to contact me to “onboard” & only then it was because I hassled them! They then decide I needed to pay them a further £500 because their system changed or some nonsense! I have zero faith in this company, a total scam and rip off to a small business. Zero guidance , all about taking the money! Do not trust in the slightest. Have now reported them to my bank. Very upset!

i cancelled subscription but they… i cancelled subscription but they carried on charging me and they refuse to pay me back Other then that the app is way over priced and full of bugs Do your self a favour dont have anything to do with this mob of scammers

Great guidance from the Klaviyo Team We moved to Klaviyo from Mailchimp and the Klaviyo team really took care of us in the transition. It was quite a stressful time because we were moving platforms, moving websites and the Gmail and Yahoo new sender requirements had just come into place, but Eoin and Lucas helped us through the process with ease, humour and a great attitude so all was well in the end. We have also contacted the support team on email with an issue we were having and they got back to us really promptly and helped us to fix it straight away. We are a small business of just 4 people with no in-house tech help, so having all this support was extremely helpful. Very impressed and would highly recommend Klaviyo to any business, big or small.

Nonsensically expensive Look, if you're constantly sending emails, Klaviyo might be worth it. But for most anyone who doesn't need the full suite, you'll be throwing money away. I certainly have! There are better options out there with more customer-friendly billing practices and at much more competitive price point. Customer support are world champions in corporate BS-lingo.