Shopify App Comparison 2026
Simple Bundles & Kits vs Upsell & Cross Sell - Selleasy
Simple Bundles & Kits
Upsell & Cross Sell - Selleasy
Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Simple and Upsell & Cross Sell - Selleasy to find the best fit for your store.
Key Features
- Multiple bundle types (fixed, mix-and-match, build-a-box)
- Automatic SKU breakdown for 3PL fulfillment
- Real-time inventory synchronization
- AI-generated bundle suggestions from order history
- Volume discounts and quantity breaks
- BOGO and free gift functionality
- Subscription bundle support
- Shopify POS and ERP integration
Verdict on Simple
Simple Bundles is the go-to choice for merchants who need proper inventory sync and 3PL fulfillment with their bundles. Its automatic SKU breakdown sets it apart from other bundle apps that only handle the frontend.
Key Features
- Frequently bought together product bundles
- In-cart upsell and cross-sell widgets
- Post-purchase upsell offers
- Multiple widget styles and placements
- Product page and cart page recommendations
- Manual and automatic product recommendations
- Multi-language and multi-currency support
- Conversion analytics and reporting
Verdict on Upsell
Selleasy is one of the most popular upsell apps on Shopify with 2,200+ reviews and very affordable pricing. Its free tier includes all features up to 100 orders, making it an excellent choice for growing stores.
Simple vs Selleasy — Side-by-Side Feature Comparison
Wondering which app offers the features you actually need? This feature-by-feature breakdown shows exactly where Simple and Upsell & Cross Sell - Selleasy differ — so you can make an informed decision for your Shopify store.
| Feature | Simple Bundles | Upsell & Cross |
|---|---|---|
| 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.
Simple Bundles & Kits
- Checkout
- Shopify POS
- Shopify Flow
- Shopify Admin
- Amazon by Codisto
- Hydrogen
- Judge.me Reviews
- POS & Shop app
Supported Languages
English
Upsell & Cross Sell - Selleasy
- Show Amazon-style frequently bought together product upsell bundles on store
- Cross sell product add ons on product pages as list, grid, carousel or popup
- Pop-up a cart upsell funnel or display in-cart upsells in cart drawer & theme
- Display checkout upsells & post purchase page upsell with one click upsell
- Cross sell related products on thank you page & order status page after sale
Supported Languages
English, German, French, Spanish, Portuguese, Italian, Dutch