Use our preorder or notify me button to capture demand regardless of stock levels! Use preorder now to launch products before inventory arrives, or keep selling when out of stock. Showcase preorders across your store with visibility features. Offer preorders, backorders, or presales with a deposit, partial payments, or a discount to increase conversions. Use a notify me button to capture back in stock demand on out of stock products, restock alert emails send automatically when you restock.

Tek Labs is a trusted free gift and upsell app for creating Free gift with purchase, BOGO, Buy X Get Y, Volume discounts, Product bundles, and Cart upsell offers. Beautiful, fully customizable widgets display across every position on your store - product page, cart, popup, and checkout. Motivating customers to buy more and boosting AOV, proven by strong upsell revenue generated through the app. Our support team is always ready to help via live chat whenever you need.

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.

Build any bundle in minutes from one powerful bundle builder, no code required. Let customers build their own bundle (BYOB) or a build-a-box. Sell fixed-price product bundles, mix-and-match bundles and quantity breaks with tiered discounts. Incentivize repeat orders with subscription bundles, and improve conversion with free gifts and add-ons on your bundles. Every bundle is on-brand out of the box; auto-sync bundle inventory across Shopify & your 3PLs, & sell your bundles with POS.

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.