Shopify App Comparison 2026

FoxKit AIO Upsell Cross-sell

4.9370 reviews
VS

Advanced Bundle Builder | PBC

4.617 reviews

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

All-in-one upsell and cross-sell toolkit with bundles, volume discounts, countdown timers, and more.

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Key Features

  • All-in-one toolkit combining bundles, upsells, cross-sells, and sales-boosting widgets
  • Countdown timers, stock scarcity alerts, and social proof notifications to drive urgency
  • Volume discount and quantity break tables with customizable tier structures
  • In-page and pop-up cross-sell recommendations on product and cart pages
  • Lightweight codebase that minimizes impact on store loading speed despite feature breadth

Verdict on FoxKit

FoxKit is the Swiss Army knife of Shopify upsell apps. If you want to avoid installing separate apps for bundles, countdown timers, stock alerts, and social proof, FoxKit consolidates everything into one clean package. The trade-off is that individual features may not be as deep as specialized apps, but for most stores the breadth and convenience far outweigh that limitation. It is an excellent choice for merchants who value simplicity and speed.

Built for Shopify

Increase AOV with custom gift boxes, mix-and-match bundles, and volume discounts.

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Key Features

  • Customize design and layout to match your brand aesthetic
  • Display bundles on dedicated pages or embed on product/collection pages
  • Single and multiple SKU support with automatic inventory tracking
  • Mix-and-match, custom bundles, and gift boxes in one platform
  • Fixed, flat, and tiered discounts with conditional logic

Verdict on Advanced

Advanced Bundle Builder by Polar Bear Commerce offers solid bundle building with Built for Shopify certification at a competitive $9.99/month. The personal account manager is a nice touch for setup assistance. At 4.6 stars with 17 reviews, it is still growing but the conditional logic and multi-layout support make it a capable option.

Frequently Asked Questions

Can FoxKit replace multiple apps on my store?

Yes, FoxKit is designed to replace separate apps for bundles, countdown timers, stock alerts, size charts, and social proof notifications. Most merchants can uninstall 2-4 apps after switching to FoxKit, improving store performance and reducing monthly costs.

Does FoxKit slow down my store?

No, FoxKit is built with a lightweight codebase that loads features asynchronously. Despite its wide feature set, the app has minimal impact on page speed, which is a key advantage over running multiple separate apps.

What are pop-up impressions?

Pop-up impressions are counted each time a FoxKit pop-up widget (such as a cross-sell offer, countdown timer, or stock alert) is displayed to a visitor. The free plan includes limited impressions, with higher tiers offering 30,000 to unlimited impressions per month.

Can I embed bundles on product pages?

Yes, you can display bundles on dedicated pages or embed them directly on product and collection pages for maximum visibility.

Does it track inventory automatically?

Yes, Advanced Bundle Builder supports both single and multiple SKU modes with automatic inventory tracking to prevent overselling.