Shopify App Comparison 2026

BST Frequently Bought Together

5.070 reviews
VS

ZenBox: Bundle Builder

4.0119 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for BST and ZenBox: Bundle Builder to find the best fit for your store.

Maximize revenue with AI-powered frequently bought together cross-sell bundles. Amazon-style design, mobile-first, with advanced analytics.

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Key Features

  • AI-powered product recommendations based on consumer purchase behavior
  • Amazon-style "frequently bought together" widget design
  • Mobile-first, fully customizable widget compatible with most themes
  • Bundle discount options with percentage or fixed amount configurations
  • In-depth analytics dashboard tracking clicks, conversions, and revenue

Verdict on BST

BST is the best option if your primary cross-sell strategy is Amazon-style "frequently bought together" recommendations. The AI-powered suggestions are genuinely smart, and the mobile-first design ensures bundles look great on every device. The free plan is limited to 1 manual bundle, but the Core plan unlocks AI recommendations at a fair price. If you want focused cross-sell rather than a full bundle builder, BST delivers.

Increase AOV by letting customers create custom bundles with flexible pricing and discounts.

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Key Features

  • Adjustable pricing and discount structures for bundles
  • Customer filtering by product titles in each builder step
  • Layered discounts compatible with other Shopify discounts
  • Two customizable builder layouts with infinite styling options
  • Forms for text input and image uploads for personalization

Verdict on ZenBox:

ZenBox has 119 reviews, making it one of the more established bundle builders. The 4.0 rating is average but reflects honest feedback across a large user base. The image upload and text input features are useful for personalized gift boxes. At $24.99/month with no free plan, it requires commitment.

Frequently Asked Questions

How does the AI recommendation work?

BST analyzes your store's purchase history to identify products frequently bought together. The AI then automatically suggests these pairings on product pages, improving over time as more purchase data is collected.

Can I place bundles sitewide?

Sitewide placement is available on the Pro plan. The Free and Core plans support placement on specific product pages and collection pages.

Does it work on mobile?

Yes, BST is built mobile-first. The widget automatically adapts to screen size and is designed to look great on phones, tablets, and desktops.

Can customers upload images for gift boxes?

Yes, ZenBox supports custom forms with text input and image uploads, making it ideal for personalized gift box builders.

Do bundle discounts stack with Shopify discounts?

Yes, ZenBox creates layered discounts that are compatible with other Shopify discounts, so they can stack.