Fillout vs Klaviyo

Fillout collects answers through branded forms, surveys and quizzes. Klaviyo uses store data to send email and SMS to shoppers. Pick Fillout to gather information and Klaviyo to market to customers.

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The verdict Side by side Plans and pricing Who each is for Other options

The verdict

If you need applications, registrations, quizzes or intake forms that feed your CRM, pick Fillout. If you run an online store and want messages triggered by purchases and abandoned carts, pick Klaviyo.

A business can use both. A form collects answers, and a marketing tool uses them. If you do that, test how the data passes between them, for example through a webhook or a connector, before you rebuild your forms. If you do not sell products online, Klaviyo will mostly sit unused.

What the data says

Both cover 2 of the 2 features we compared.
Both have a free plan, so you can try each before you pay.
Fillout starts lower, at $15/mo against $20/mo.
Only Klaviyo has an MCP server, so an AI employee can work in it directly.
In our Automation ranking, Klaviyo places 9 and Fillout 5 of 11.

Side by side

Fillout and Klaviyo compared
6 points compared	Fillout	Klaviyo
Starts at	$15/mo	$20/mo
Free plan	Yes	Yes
API	Yes	Yes
MCP server	No	Yes
Built-in AI	Yes	Yes
Integrations & API	Yes	Yes
Links	Visit	Visit

Plans and pricing

Fillout

Free1,000 responses per month, unlimited forms and unlimited seats.Free
StarterShown as 15 per month billed annually; all plans have unlimited seats.$180/yr
ProShown as 40 per month billed annually; all plans have unlimited seats.$480/yr
BusinessShown as 75 per month billed annually; all plans have unlimited seats.$900/yr

Klaviyo

FreeFree up to 250 active profiles and 500 email sends per month, plus $5 of mobile messages.Free
ComposerAI add-on plan at $20 per month with about four times the free Composer usage.$20/mo

Prices as the vendors list them. They change often; the final price is on their sites.

Who each is for

Choose Fillout if…

Pick Fillout if your forms are more than a contact page. Think of applications, event sign-ups or client intake that need branding and a clean hand-off. It has white-label options, payments, signatures and PDF generation, and more than 50 native integrations.

A free plan exists. Response limits drive cost on paid plans, and removing the Fillout branding sits on the higher plans. If you only need one simple form, Google Forms or Tally do the job.

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Choose Klaviyo if…

Pick Klaviyo if you sell products online and want behaviour to drive your messages. Segments use purchase history and site behaviour, and email, SMS and push sit on one customer profile. It also has forms of its own.

It has a free plan and an official MCP server. Paid plans rise with your contacts, so check the real cost for your list. It has no deals pipeline, so a B2B service business with long sales cycles is better served by a CRM.

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