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KlaviyoFind & Win Customers

STOA rating

7.4 / 10

Openness

OPENNESS 9/10API 2/3 · Export 3/3 · Contract 2/2 · Integrations 2/2

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API

Klaviyo has a public API for building apps and integrations; the developer docs do not state which plans include it. developers.klaviyo.com, checked 27 Sept 2026 (opens in a new tab)

Your data

Users with the Owner, Admin or Analyst role can export any list or segment of profiles to a CSV file. help.klaviyo.com, checked 27 Sept 2026 (opens in a new tab)

Contract

Account owners or admins can cancel a paid plan themselves, at the end of the billing cycle or right away; manually billed plans and contracts longer than one month go through support. help.klaviyo.com, checked 27 Sept 2026 (opens in a new tab)

Connections

Zapier lists a Klaviyo integration. zapier.com, checked 27 Sept 2026 (opens in a new tab)

Klaviyo runs its own integrations directory connecting to 350+ apps. klaviyo.com, checked 27 Sept 2026 (opens in a new tab)

Openness note

Public API; plan access not stated. List and segment CSV export. Owners cancel paid plans themselves. On Zapier. Own app directory.

What it does

Klaviyo is best for small e-commerce businesses that sell direct to consumers, especially those running on Shopify, WooCommerce, or BigCommerce. It lets you send email and text marketing messages that are triggered by what your customers actually do—like browsing a product, abandoning a cart, or making a purchase. You can build automated flows, segment your audience, and track how much revenue each campaign brings in, all from one place. It grows with you, starting free for very small lists and scaling up as your business does.

Strengths

Best-in-class Shopify and WooCommerce integration
Revenue attribution shows exactly what each campaign earns
Powerful audience segmentation based on real purchase and behavior data
Generous feature set even on lower-tier paid plans
Strong AI tools for campaign creation and customer support automation

Weaknesses

Pricing scales by contact count and can get expensive fast for growing lists
Free plan is limited to 250 profiles and 500 emails per month—outgrown quickly
Steeper learning curve than simpler email tools like Mailchimp
Less useful for service businesses or B2B companies without an e-commerce store

Key features

Send automated email and SMS campaigns triggered by customer actions like cart abandonment or purchases
Segment your customer list based on purchase history, browsing behavior, and engagement
Track revenue directly tied to each email or text campaign with built-in reporting
Connect with 350+ tools including Shopify, WooCommerce, Meta, and TikTok
Use AI to generate campaign copy, subject lines, and full on-brand email flows from a simple prompt
Manage customer support tickets and self-service order tracking alongside your marketing

AI features

Klaviyo's AI can write full email campaigns from a simple text prompt, generate subject lines, and even run an autonomous Marketing Agent that builds flows and forms after scanning your website. A Customer Agent can handle many support questions on its own.

STOA verdict

Klaviyo is the go-to pick if you run an online store and want email and SMS marketing that actually ties back to sales. Its biggest strength is deep e-commerce data integration—especially with Shopify—so your messages respond to what customers do in real time. The main downside is that costs climb quickly once your contact list grows past a few thousand profiles, so budget accordingly as you scale.