Shopify App Comparison 2026

Smart Checkout Widgets

5.04 reviews
VS

promBundle - Bundle Discounts

5.02 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Smart and promBundle - Bundle Discounts 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.

Boost sales with BOGO, mix-and-match, quantity breaks, volume discounts, and promotional banners with countdown timers.

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Key Features

  • Multiple bundle types: BOGO, mix-and-match, volume discount, quantity breaks
  • Promotional banners, discount badges, and countdown timers
  • AI analysis, reports, and discount planning
  • Automatic multi-language translation
  • Ready templates and store display widgets

Verdict on promBundle

promBundle packs a lot of bundle types and promotional features into one app. The free plan with $400/month in bundle sales is a great way to test. AI-powered reports and auto-translation are nice touches. Only 2 reviews so very early, but the feature breadth is impressive for the price.

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.

What does the revenue cap mean?

Each plan has a maximum monthly bundle revenue limit. The Free plan allows up to $400/month in bundle-attributed sales, while the Ultimate plan allows up to $20,000/month.