Shopify limit 2048 variants per product. This app helps you to create infinite custom product options like textbox, file upload, dropdown, etc... It also encourages buyers to personalize their products, which increases sales. Allow shoppers to design their own custom products based on flexible option choices. Apply particular option set to appropriate products. Your customer will be happy to pay a small extra amount for a custom option to have the most satisfied product.

Boost your AOV with the Essential Upsell app, offering customizable product upsell & cross-sell & "add to cart" widgets. Display frequently bought together (FBT), related products & product addons on product page & cart drawer. Create upsell and cross-sell strategies with "also like" product recommendations, product bundles, buy x get y & one-click upsells. Offer post purchase upsell discounts & automatic promotions to drive conversions with recommended products & cart frequently bought items.

When you launch a niche store fast, design, images and CRO tools often feel missing. Nitro generates a full Shopify store from any product link. It builds product pages, Nitro theme and edits photos with AI Image Studio. Add shoppable videos, trust badges, sale popups, bundles, cart upsell, buy X get Y and volume discounts. Post-purchase offers show clear accept/decline buttons, no hidden fees, and stop after two consecutive upsells. Track conversions and view revenue reports.

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.

Pre-Order & Back-in-Stock makes it easy to manage pre-sales and notify customers when products are available. Set up pre-orders based on inventory levels or schedule them with start and end dates. Automatically tag orders with labels like “preorder” or “shipping date” and send confirmation emails to customers. For back-in-stock functionality, customers can subscribe to get notified the moment a sold-out product is restocked, helping you recover lost sales and improve customer satisfaction.