Shopify App Comparison 2026

Smart Checkout Widgets

5.04 reviews
VS

ABU AI: Upselling & Crosselling

5.01 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Smart and ABU AI: Upselling & Crosselling to find the best fit for your store.

Built for Shopify

Personalize upsells, gifting, and custom content at checkout to increase AOV.

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Key Features

  • Smart Gifts/BOGO and automatic stackable discounts
  • Checkout UX widgets and custom banners
  • Social proof and shipping/payment reorder options
  • Custom form fields for checkout
  • Thank You and Order Status page support

Verdict on Smart

Smart Checkout Widgets is a Built for Shopify checkout customization tool that adds gifting, upsells, and custom content directly in the checkout flow. The free-to-install starter plan with 100 orders/month is great for testing. Only 4 reviews but the 5.0 rating and Shopify certification are promising.

AI-powered upselling and cross-selling add-ons to increase average order value.

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Key Features

  • Smart product recommendations based on purchasing behavior
  • Automatic bundles and discounts to increase cart value
  • Manual control of recommendations by product, collection, or tag
  • Discount configuration for product bundle purchases
  • Easy integration into product pages, cart, and checkout

Verdict on ABU

ABU AI is a bilingual Spanish/English upsell tool targeting Latin American markets. The AI-powered recommendations are a good concept, but with only 1 review it is unproven. The free plan is extremely limited at 1 order/month. Best for Spanish-speaking store owners who want native-language support.

Frequently Asked Questions

Does this work with all Shopify plans?

Some checkout customization features may require Shopify Plus. Check the specific widget capabilities for your plan level.

Does ABU AI work in Spanish?

Yes, ABU AI fully supports both Spanish and English, making it ideal for Latin American and Spanish-speaking markets.