Shopify App Comparison 2026

BST Frequently Bought Together

5.070 reviews
VS

Pro:Warning Product Alerts

5.06 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for BST and Pro:Warning Product Alerts 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.

Built for Shopify

Display custom warning notifications on product pages for age verification, shipping delays, and terms.

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Key Features

  • Unlimited warning messages for selected products or variants
  • Custom warning icons or upload your own
  • Geolocation targeting to display warnings for specific regions
  • Multiple alerts per product or variant
  • Auto-save warning consent date/time in order details

Verdict on Pro:Warning

Pro:Warning is a Built for Shopify certified tool for compliance and customer communication. The geolocation targeting is useful for stores selling regulated products across regions. At $7.99/month with 5.0 stars, it is affordable and well-reviewed. Essential for stores needing age verification or shipping disclaimers.

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 show different warnings by country?

Yes, Pro:Warning includes geolocation targeting that lets you display specific warning messages only to visitors from certain countries or regions.