Shopify App Comparison 2026
Simple Bundles & Kits vs Releasit COD Form & Upsells
Simple Bundles & Kits
Releasit COD Form & Upsells
Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Simple and Releasit COD Form & Upsells 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
- Custom COD order form replacing checkout
- One-click upsells and downsells
- OTP/SMS phone verification
- Multi-pixel tracking (Facebook, TikTok, Google)
- Quantity offers and discounts
- Google Sheets order import/export
- Abandoned checkout recovery
- Multi-language support
Verdict on Releasit
Releasit is the most popular COD form app on Shopify with 2,600+ reviews. Its built-in upsell capabilities make it a complete solution for dropshipping stores in COD markets looking to maximize order value.
Simple vs Upsells — Side-by-Side Feature Comparison
Wondering which app offers the features you actually need? This feature-by-feature breakdown shows exactly where Simple and Releasit COD Form & Upsells differ — so you can make an informed decision for your Shopify store.
| Feature | Simple Bundles | Releasit COD Form |
|---|---|---|
| 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
Releasit COD Form & Upsells
- Checkout
- Shopify Admin
- GemPages
- Google Sheets
- Kaching Cart
- PageFly
- Wide Bundles
- Zipify Pages
Supported Languages
English, French, Arabic, Spanish, Italian, German, Portuguese, Turkish