Fly: Bundles & Quantity Breaks vs UpsellPlus Checkout Upsellfor Shopify (2026)
Fly: Bundles & Quantity Breaks and UpsellPlus Checkout Upsell both aim to increase Average Order Value (AOV) for Shopify merchants, but they take different approaches. Fly focuses on creating bundles, quantity breaks, and volume discounts to encourage larger purchases within the standard shopping flow, emphasizing a streamlined experience with native widgets and zero coding required. UpsellPlus, on the other hand, centers around checkout optimization, offering upsells directly within the Shopify Checkout (especially for Shopify Plus users), post-purchase offers, and thank you page customizations. Fly targets merchants who want to subtly incentivize larger purchases through product combinations, tiered discounts, and free gifts. Its strength lies in the breadth of its bundling and discount options, combined with its user-friendly, no-code design. UpsellPlus caters to merchants seeking more direct and aggressive AOV improvement strategies by leveraging the checkout process and post-purchase experience. Its power lies in its ability to customize the checkout flow (especially with Shopify Plus) and offer targeted upsells at critical decision points. Both apps boast a 5/5 rating, but Fly has significantly more reviews, suggesting wider adoption and potentially more comprehensive real-world usage data.
At a Glance
Fly: Bundles & Quantity Breaks
257 reviews
UpsellPlus Checkout Upsell
103 reviews
Detailed Overview
Fly: Bundles & Quantity Breaks
Maximize AOV with product bundles, combos, quantity breaks, volume discounts, upsells, FBT & BOGO
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
UpsellPlus Checkout Upsell
Boost your AOV with checkout upsells, product & post purchase offers & thank you page editing
Key Features
- Modify checkout page with upsells, shipping bar & more (Shopify Plus Exclusive)
- Customize thank you page with reviews, upselling and cross-selling, & more
- Create post purchase one-click upsell & downsell offers (single & multi-product)
- Add checkout extensions to show reviews, banners, custom payment and delivery
- Upsell on the product page, cart page, cart drawer, checkout and post-purchase!
Feature Comparison
| Rating | 5/5 | 5/5 |
Rating Fly: Bundles & Quantity Breaks5/5 UpsellPlus Checkout Upsell5/5 | ||
| Reviews | 257 | 103 |
Reviews Fly: Bundles & Quantity Breaks257 UpsellPlus Checkout Upsell103 | ||
| Primary Focus | Bundles, Quantity Breaks, Volume Discounts | Checkout Upsells, Post-Purchase Offers |
Primary Focus Fly: Bundles & Quantity BreaksBundles, Quantity Breaks, Volume Discounts UpsellPlus Checkout UpsellCheckout Upsells, Post-Purchase Offers | ||
| Checkout Customization | Limited | Extensive (especially for Shopify Plus) |
Checkout Customization Fly: Bundles & Quantity BreaksLimited UpsellPlus Checkout UpsellExtensive (especially for Shopify Plus) | ||
| Coding Required | Zero Coding | No Developer Required (implies some configuration) |
Coding Required Fly: Bundles & Quantity BreaksZero Coding UpsellPlus Checkout UpsellNo Developer Required (implies some configuration) | ||
| Key Feature 1 | Frequently Bought Together blocks | Post purchase one-click upsell & downsell offers |
Key Feature 1 Fly: Bundles & Quantity BreaksFrequently Bought Together blocks UpsellPlus Checkout UpsellPost purchase one-click upsell & downsell offers | ||
| Key Feature 2 | Free Gift and automated bundle upsell tools | Thank you page customization |
Key Feature 2 Fly: Bundles & Quantity BreaksFree Gift and automated bundle upsell tools UpsellPlus Checkout UpsellThank you page customization | ||
| Target Audience | Merchants seeking subtle AOV increase through strategic product combinations and discounts | Merchants targeting aggressive AOV growth with direct checkout and post-purchase optimization |
Target Audience Fly: Bundles & Quantity BreaksMerchants seeking subtle AOV increase through strategic product combinations and discounts UpsellPlus Checkout UpsellMerchants targeting aggressive AOV growth with direct checkout and post-purchase optimization | ||
| Ease of Use | Very Easy | Easy, but likely requires more configuration |
Ease of Use Fly: Bundles & Quantity BreaksVery Easy UpsellPlus Checkout UpsellEasy, but likely requires more configuration | ||
| Value Proposition | Maximize AOV through strategic bundling and discounts, seamlessly integrated into the customer journey. | Boost AOV by capitalizing on critical decision points in the checkout and post-purchase flow. |
Value Proposition Fly: Bundles & Quantity BreaksMaximize AOV through strategic bundling and discounts, seamlessly integrated into the customer journey. UpsellPlus Checkout UpsellBoost AOV by capitalizing on critical decision points in the checkout and post-purchase flow. | ||
Our Verdict
For merchants prioritizing a seamless, no-code experience with a focus on strategic product combinations and discounts to subtly increase AOV, Fly: Bundles & Quantity Breaks is the better choice. It offers a broader range of bundling and discount options that are easily integrated into the store. It shines in its simplicity and ease of use.
However, for merchants aiming for a more direct and aggressive approach to AOV improvement, especially those with Shopify Plus stores looking to customize the checkout experience, UpsellPlus Checkout Upsell is the superior solution. The ability to modify the checkout page and post-purchase flow provides powerful opportunities to capture additional revenue. UpsellPlus allows you to be more strategic about capturing those last minute sales. Consider Fly for ease of use and broader integration, and UpsellPlus for control over customer's checkout flow.
Common Questions
Can both apps be used together?
While technically possible, using both apps simultaneously might lead to a confusing customer experience. It's generally recommended to choose one that best aligns with your AOV strategy.
Does UpsellPlus Checkout Upsell work without Shopify Plus?
While UpsellPlus offers features for non-Shopify Plus users, the ability to directly modify the checkout page is exclusive to Shopify Plus. Other features like post-purchase upsells are available for all users.
Which app is easier to set up?
Fly: Bundles & Quantity Breaks appears to be simpler to set up due to its "zero coding" claim and focus on native widgets. UpsellPlus, while requiring no developer, likely involves more configuration to customize the checkout and post-purchase flows.
Which app offers better reporting?
UpsellPlus explicitly mentions "real-time analytics" and "A/B testing," suggesting it may offer more granular reporting on upsell performance compared to Fly, which doesn't specifically highlight reporting features.
Which app offers stronger inventory management features?
Fly: Bundles & Quantity Breaks mentions 'Breakdown of bundles for auto discounting, inventory sync, fulfilment, & return' so would likely have better support for inventory management.
Get More From Your Shopify Store
Run audits for SEO, CRO, PageSpeed, and AI visibility. Get a clear report and actionable fixes.
Try Fix My Store