Go beyond the basics with the Klaviyo marketing app. New stores get a guided setup — sign-up form, welcome email, and abandoned-checkout flow — without leaving Shopify Admin. Unify data from 350+ integrations and boost marketing performance with campaigns, smart segmentation, and automated workflows from Klaviyo’s AI Agents. Over 117k brands use Klaviyo and Shopify to grow faster with personalized emails, SMS, WhatsApp messages, and marketing automation tools that turn browsers into buyers.

CWILL (SendWILL) helps Shopify merchants collect subscribers and run email marketing campaigns with popups, forms, and automations. Capture subscribers with email popups, exit-intent forms, newsletter signup forms, and spin-the-wheel offers. Email Shopify customers with welcome, abandoned cart, win-back, and post-purchase automations. Sync subscribers with Shopify Email, customize popups, and track performance. Previously known as Trustoo and EcomSend.