Shopify App Comparison 2026

Moon Bundles CartDrawer Upsell

5.0451 reviews
VS

Pro:Warning Product Alerts

5.06 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Moon and Pro:Warning Product Alerts to find the best fit for your store.

Built for Shopify

Create irresistible bundles, cart upsell, free gifts, BOGOs. Increase AOV with quantity breaks, volume discounts, cart drawer & post purchase upsell.

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Key Features

  • Product bundles and free gifts with mix-and-match options and auto-applied bundle logic
  • Cart drawer and cart upsell functionality that works across all themes and third-party apps
  • Post-purchase upsells and customizable thank-you page offers
  • Volume discounts, quantity breaks, and BOGO deal builder
  • Bundle builder with fully customizable styling and layout options

Verdict on Moon

Moon Bundles is one of the best-value bundle apps on Shopify, combining bundles, cart drawer upsells, post-purchase offers, and volume discounts into a single install. The generous free tier and Built for Shopify badge make it a safe bet for any merchant. Its multi-language support and theme-wide compatibility stand out among competitors. The revenue cap pricing model is transparent — you only upgrade when your bundles are actually making money.

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

What is a revenue cap?

The revenue cap is the maximum amount of bundle revenue your store can generate per month on each plan. The free Discovery plan caps at $500, Essential at $2,000, Pro at $10,000, and Premium is unlimited. Revenue beyond the cap requires upgrading.

Does Moon Bundles work with my theme?

Yes, Moon Bundles is designed for theme-wide compatibility and works with all Shopify themes including Online Store 2.0. The cart drawer also integrates with third-party apps and custom theme modifications.

Can I create BOGO deals?

Yes, Moon Bundles supports Buy One Get One deals, Buy X Get Y promotions, quantity breaks, and progressive free gifts. All can be configured from the bundle builder dashboard.

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.