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.

Unlike basic cart drawer apps, Upcart turns your cart into a revenue-driving touchpoint with in-cart upsells, cross-sells, rewards, and add-ons—without redirecting shoppers or requiring multiple apps. Designed for fashion, food & beverage, beauty, and other DTC brands, Upcart matches your storefront and works seamlessly across desktop and mobile.

Supercharge your store’s search and filters—without breaking your theme or slowing page speed. Build any filter: price, brand, color, size, metafields, tag. Turn the tiny magnifying-glass widget into an always-visible AI search bar with typo tolerance, predictive recommendations, and semantic understanding. Then fine-tune results with product boost, and smart synonym management so shoppers always see the best of your catalog. Faster search. Better filters. Cleaner navigation. Higher conversions.

Every product page is a missed opportunity when bundles aren't working for you. Built on 10+ years of app development experience, our intelligent engine delivers one click bundle recommendations that let shoppers add complementary products instantly, increasing items per checkout and AOV. Use AI recommendations, manual rules, or global presets to upsell and cross sell at scale. Easily apply discounts configured globally or individually to adapt to the needs of your store and bundles.

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.