Get the most out of your product reviews with all your data consolidated in one platform. Deliver a seamless customer experience with all review requests on brand, on time, and never double-sent – Klaviyo already has all your existing templates and applies smart sending rules to all sends.

Go beyond the basics with the Klaviyo marketing app. Klaviyo syncs Shopify data in milliseconds so every message and insight reflects what’s happening in your store right now. 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.

Littledata connects your Shopify store with Twilio Segment, a leading Customer Data Platform (CDP), tracking full ecommerce and customer event data. Littledata automatically sends accurate Shopify data to Segment, enabling you to push that data to any of the device-mode or cloud-mode destinations that Segment supports.

Rebuy personalizes every step of the shopping journey with AI-powered upsells, cross-sells, and smart product discovery and merchandising tools. Our core packages — Cart & Merchandising, Checkout & Post Purchase, Search & Collections, and Flows & A/B Testing — help brands boost AOV and LTV. Plus, Rebuy Monetize unlocks new, incremental post-purchase profit! Grow faster with flexible no-code, low-code, and custom code solutions trusted by top Shopify stores to convert more and grow faster.

Add a "Notify me" button in minutes to enable automatic back in stock email or SMS alerts when you restock. Maximize sales by capturing demand before you have inventory with the preorder feature. Show AI powered in-stock recommendations for out of stock products. Customize to match your site’s theme. Automate back in stock and restock alerts via your ESP or SMS platform. Advanced inventory control capabilities like batch alert send, coming soon alerts and analytics to track popular products.