Shopify App Comparison 2026

Sumi: Full Page Bundle Builder

5.07 reviews
VS

Smart Checkout Widgets

5.04 reviews

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

Let customers mix and match to build their own bundles and boxes with automatic inventory sync.

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Key Features

  • Flexible rules and discounts for custom bundle creation
  • Single or multiple step bundle builders
  • Automatic inventory sync with individual SKUs in orders
  • Design automatically matches your store theme
  • Fully optimized for mobile shopping experience

Verdict on Sumi:

Sumi is a clean, focused bundle builder with a perfect 5.0 rating. The auto-matching theme design and mobile optimization reduce setup friction. At $24/month with no free plan, it is priced for stores that are committed to bundling. Individual SKUs in orders simplify fulfillment.

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.

Frequently Asked Questions

Does Sumi track inventory for bundles?

Yes, inventory is automatically synced and individual product SKUs appear in orders, making fulfillment straightforward.

Does it match my store theme?

Yes, Sumi automatically matches your store theme styling so bundles look native to your store without manual design work.

Does this work with all Shopify plans?

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