Rebuy is one of the best free personalization apps for Shopify merchants, offering AI-powered product recommendations, Smart Cart functionality, and post-purchase monetization. The free plan includes access to core personalization features with no setup costs, making it ideal for stores looking to boost AOV and conversions without initial investment.
Essential Upsell & Cross Sell offers similar functionality with a 5.0 rating and 861 reviews, providing frequently bought together upsell and cross-sell capabilities. Upcart—Cart Drawer Cart Upsell offers a free plan with slide cart functionality and free shipping bar. One Click Upsell ‑ Zipify OCU provides AI upsells and cross-sells with a free plan available for maximizing revenue on every sale.
To set up Smart Cart, navigate to your Rebuy dashboard and select the Cart & Merchandising package. Use the drag-and-drop editor to customize your cart with features like tiered progress bars, announcement banners, and AI-powered upsells. The no-code setup allows you to install in minutes without touching theme files, with over 35+ pre-built integrations available.
In your Rebuy dashboard, go to Checkout & Post-Purchase and enable Post-Purchase Offers. Configure offers that appear between checkout and thank you pages, using Rebuy's AI to deliver personalized recommendations at peak purchasing intent. Set up custom rules based on customer behavior and purchase history to maximize conversion rates.
Rebuy users typically see significant AOV increases, with case studies showing 11% boost for DIME Beauty, 18.65% increase for Manssion, and 25% boost for Olly using Smart Cart. The exact increase depends on your product mix and personalization strategy, but merchants report substantial revenue growth through AI-driven recommendations and upsell optimization.