Shopify App Comparison 2026

Fly Bundles Quantity Breaks vs Upcharge Fees & Product Addons: Shopify App Comparison (2026)

Fly Bundles Quantity Breaks

4.9528 reviews
VS

Upcharge Fees & Product Addons

4.5137 reviews

Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Fly and Upcharge Fees & Product Addons to find the best fit for your store.

Built for Shopify

Shopify app for product bundles, AI upsells & quantity breaks to boost AOV & conversions. Complete with advanced analytics and design flexibility.

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Key Features

  • Boost cart value with a Fixed Bundle, BOGO or Frequently Bought Together blocks.
  • Drive bulk sales with tiered Quantity Break and Volume Discount triggers.
  • Incentivize larger carts with a Free Gift and automated bundle upsell tools.
  • Build well integrated, beautiful native widgets with zero impact on store speed
  • Breakdown of bundles for auto discounting, inventory sync, fulfilment, & return
Built for Shopify

Our surcharge app helps you apply conditional fees, late fees, and automatic fees

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Key Features

  • Apply klarna fees, credit card fees, fees payment, or a payment method fee
  • Set a fee rule for a flat fee, cart fee, percentage fee, or extra fee
  • Extra fees manager for mandatory fees, tariff surcharge & extra charge
  • Link price addons, deposits and fees directly to your orders and fees
  • Add a fee, cash on delivery fee, surcharge fee, or fees and surcharges

Fly vs Addons — Side-by-Side Feature Comparison

Wondering which app offers the features you actually need? This feature-by-feature breakdown shows exactly where Fly and Upcharge Fees & Product Addons differ — so you can make an informed decision for your Shopify store.

FeatureFly BundlesUpcharge Fees &
Cart drawer / slide cart
Post-purchase upsell
Frequently bought together
Free shipping bar
Free gift / BOGO
Product page upsell
AI recommendations
Built for Shopify
Free plan available
Custom branding

Integration & Compatibility Comparison

App integrations matter — especially when you're running multiple tools in your Shopify stack. Here's what each app connects with out of the box.

Fly Bundles Quantity Breaks

Built for Shopify
  • Checkout
  • Shopify Admin
  • All 3PL Apps
  • All Side cart Apps
  • Checkout Extensions
  • Page Builder Apps

Supported Languages

English

Upcharge Fees & Product Addons

Built for Shopify
  • Checkout
  • Shopify POS
  • Shopify Admin

Supported Languages

English

Frequently Asked Questions