Kiwi helps you remove any sizing uncertainty with customizable size charts and AI-powered fit recommendations that guide shoppers to the right choice. The result? More confident purchases and fewer returns. Add size charts and smart recommendations to any product, from apparel to dog collars. Quick to set up and gives you the flexibility to create a sizing experience that looks professional and fits your brand.

Sell more with email marketing, SMS, newsletters, and web push in one app — turn visitors into customers and repeat buyers. Connect ChatGPT or Claude to Omnisend via MCP: create campaigns and build segments without leaving the chat. Omnisend's AI marketing writes on-brand copy and powers product recommendations. Grow your email list with popups and signup forms, then let marketing automation run abandoned cart and welcome automation. Plus 24/7 email & live chat support and 200+ integrations.

Every out-of-stock product is a customer about to leave forever. Amp: Back in Stock & PreOrder+ captures them with a "Notify Me" button, builds a waitlist, and auto-fires alerts the moment you restock - via email, SMS, or push. Pre-sell upcoming drops and collect revenue before inventory lands. Wishlists and low-stock alerts let you capture intent at every stage. Built for high-SKU catalogs. Set up in minutes. Hundreds of millions of alerts delivered across 25,000+ brands since 2011.