Shopify App Comparison 2026

BST Frequently Bought Together

5.070 reviews
VS

HD - Product Addons

3.01 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for BST and HD - Product Addons 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.

Add gift wrap, warranties, and other product add-ons with an interactive slider on product pages.

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Key Features

  • Interactive addon slider on any product page
  • Custom add-ons like gift wrap, warranties, or personalized messages
  • Use existing store products as upsells in the slider
  • Info popups with extra details and images for each addon
  • Integrates with cart and Buy Now buttons for seamless checkout

Verdict on HD

HD Product Addons offers a unique slider-based add-on experience for product pages. The concept is good for gift wrap, warranties, and customization options. However, with 3.0 stars and only 1 review, it has concerning quality signals. The free plan with 10 revenue orders is very limited.

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 I add gift wrapping as an add-on?

Yes, you can create custom add-ons like gift wrap, warranties, or personalized messages that appear in an interactive slider on your product pages.