Klaviyo

Klaviyo is built specifically for online stores, with deep native integrations into Shopify and other storefronts that let you track which emails drive actual purchases. The platform connects your email sends directly to order data, so you can see which campaigns and sequences generate real revenue.

Rather than treating email as a broadcast channel, Klaviyo frames it as a revenue driver, making it popular with direct-to-consumer brands and product sellers. The SMS features integrate smooth with the same audience, letting multi-channel campaigns pull from a single reporting view.