Shopify App Comparison 2026
Opus Cart Drawer Cart Upsell vs FoxSell Bundle Builder
Opus Cart Drawer Cart Upsell
FoxSell Bundle Builder
Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Opus and FoxSell Bundle Builder to find the best fit for your store.
Key Features
- Upsells & Cross-sell: Boost AOV with Frequently Bought Together offers
- Free Gifts: Encourage higher spending with Free Gifts based on cart variants.
- Rewards Bar: Encourage customers to buy more to get free shipping and rewards.
- Drive Urgency: Boost conversions with countdown timers & limited-time deals.
- Abandoned Cart: Recover sales by tracking & understanding why customers leave.
Boost sales, average order value, and effortlessly upsell with FoxSell Bundles Plus. Create Mix and Match Bundle Builder, Build Your Own Bundle Sets
View Full DetailsKey Features
- Mix and match or Build your box bundle for complex bundling (infinite variants)
- Automated inventory sync for fast bundles and easy order fulfillment
- Volume Bundle with quantity breaks, POS to upsell shoppers
- Fixed Bundles now supports 30 products in a Bundle with bundle analytics
- Build a Box (BYOB) with Add-ons, Free Gifts, boost AOV & fly revenue fast
Opus vs Builder — Side-by-Side Feature Comparison
Wondering which app offers the features you actually need? This feature-by-feature breakdown shows exactly where Opus and FoxSell Bundle Builder differ — so you can make an informed decision for your Shopify store.
| Feature | Opus Cart | FoxSell Bundle Builder |
|---|---|---|
| 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.
Opus Cart Drawer Cart Upsell
- Checkout
- Shopify Admin
- Avis Options, Avis Bundles
- Checkout
- Ecomposer, Gempages
- Subscriptions App
- Translate & Adapt
- Transtore, Transcy
Supported Languages
English, Chinese (Simplified), French, Spanish, Japanese
FoxSell Bundle Builder
- Checkout
- Customer accounts
- Shopify POS
- Shopify Admin
- Checkout Links
- Design Packs: Theme Sections
- Fish Wishlist
- Online Store 2.0
Supported Languages
English