When customers aren't sure about sizing, they hesitate, or return their order, which gets costly during the holidays. Kiwi helps you remove that 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 more. No code, quick setup. Launch in minutes and create a sizing experience that matches your brand.

Wishlist Plus enables your shoppers to save favorites and return to them later. Comes with powerful APIs to customize wishlists and integrates with leading email services to send price drop and restock alerts. Helps shoppers organize products into multiple wishlists and share them via emails, SMS, and socials. Supports anonymous wishlists. Comes with detailed reports on shopper behavior. Includes a new Customer Accounts extension for easy tracking of all wishlists and browsing activity.

Elevar by Audiense's server-side tracking with Session Enrichment stitches events, sessions, and channel attribution to recognize returning anonymous users and connect behavior across visits in real time. Built for a cookieless future, Elevar provides a flexible, scalable data foundation—delivering reliable data to Meta CAPI, Snapchat, Klaviyo, and more without browser tracking. Scale profitably with data you can trust.

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.

Sizing confusion costs apparel sales. When shoppers aren't sure about fit, they leave or return. MP Size Chart adds customizable size charts and size guides to Shopify product pages for fashion, footwear, jewelry & pets. Add size charts with images, videos & tabs. Import size charts in bulk via CSV. Use 30+ size chart templates, auto unit conversion and a dedicated size guide page. AI size recommendations guide shoppers to the right fit. Switching apps? We'll migrate your size charts for free.