Who uses Klaviyo?

The Shopify stores running Klaviyo: Email Marketing & SMS, from Alert's storefront scan: where they are based, what they sell, and the apps they run alongside it.

4.7 stars3,370 App Store reviews

Email marketingApp Store category

KlaviyoDeveloper

The typical Klaviyo store

50products listed (median store)

9apps on the storefront (median store)

~15%on Shopify Plus, 2.7x the Shopify average

59%based outside the United States

Where Klaviyo stores are based

United States42%

Australia11%

United Kingdom9.5%

Germany5.3%

Canada4.5%

Netherlands3.6%

What Klaviyo stores sell

Fashion22%

Business and industrial21%

Food and drink8.7%

Technology7.5%

General shopping6.2%

Apps Klaviyo stores run alongside it

How much more often a Klaviyo store runs each app than the average Shopify store.

Gorgias4.2x

Triple Whale3.7x

Simprosys Google Shopping Feed2.6x Yotpo2.6x Pandectes GDPR Compliance2.5x UpPromote Affiliate Marketing2.2x

Competitors in Email marketing

The most reviewed apps in the same App Store category.

Privy

Omnisend Email Marketing & SMS

AfterShip Email Marketing,SMS

Brevo PushOwl TrustWILL Product Reviews App

What merchants raise in critical reviews

Recurring themes across the 60 most recent 1 to 3 star App Store reviews of Klaviyo (last 18 months).

Support limited or unhelpfulRaised in 28% of recent critical reviews

Difficult or complicated to useRaised in 23% of recent critical reviews

High pricing and plan increasesRaised in 22% of recent critical reviews

See every store running Klaviyo, and who just removed it

Alert tracks installs and uninstalls as stores are rescanned, with the decision maker for each store. Filter by country, catalog size and plan.

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Questions

How does Alert know a store runs Klaviyo?

We read each store's public storefront and look for the app's own install traces, such as its theme blocks and scripts. Code left behind after an app is uninstalled is not counted.

How fresh is this page?

The figures on this page refresh monthly. Inside Alert, installs and uninstalls update as stores are rescanned.

Why are there no store counts here?

This page shows shares of the stores we detected running Klaviyo, which stay stable as our scan grows. The full store list lives inside Alert.

Shares of Shopify stores Alert detected running Klaviyo: Email Marketing & SMS, as of October 2026. Klaviyo is a trademark of its owner. Alert is not affiliated with Klaviyo.