Shopify App Comparison 2026

Rebuy Personalization Engine

4.7809 reviews
VS

Shopify Checkout Blocks

4.1175 reviews

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

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

Customize your Checkout, Thank you and Order status pages.

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Key Features

  • Customize the Order status and Thank you page with content blocks
  • Shopify Plus: Custom Checkout with content blocks, custom fields & more
  • Shopify Plus: Create custom Order & Shipping discounts
  • Shopify Plus: Validate address format requirements and set order value limits
  • Shopify Plus: Hide, rename, & reorder delivery and payment methods

Frequently Asked Questions