Shopify App Comparison 2026

Nex Advanced Cash on Delivery

4.9139 reviews
VS

Rebuy Personalization Engine

4.7809 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Nex and Rebuy Personalization Engine to find the best fit for your store.

Advanced COD management with location controls.

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Key Features

  • Add fee for cash on delivery orders to cover expenses
  • Hide COD when discount is applied or based on discount amount
  • Restrict COD by pincode, state, and country
  • Disable COD for problematic (RTO) customers using tags
  • Show/hide COD for specific products or collections
  • Custom fees based on cart amount and weight
  • Limit COD by cart amount and number of products
  • Limit COD by discounts and customer tags
  • Advanced payment and shipping rules

AI recommendations: cart, checkout, and post-purchase upsells.

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Key Features

  • AI-powered product recommendations across entire shopping journey
  • Smart Cart: fully customizable slide-out cart with upsells
  • Post-purchase one-click upsell and cross-sell offers
  • Checkout extensions for Shopify Plus
  • Re-order landing pages and smart links
  • A/B testing and merchandising rules
  • Advanced analytics and revenue attribution
  • Integrations with Klaviyo, Recharge, Okendo, and more

Frequently Asked Questions