Shopify App Comparison 2026
Amp Slide Cart Upsell Drawer vs Simple Bundles & Kits
Amp Slide Cart Upsell Drawer
Simple Bundles & Kits
Which Shopify upsell app increases AOV more? Compare pricing, features, ratings & real merchant reviews for Amp and Simple Bundles & Kits to find the best fit for your store.
Key Features
- Cart drawer with sticky cart functionality
- Cart upsells and cross-sell recommendations
- Frequently bought together suggestions
- Free gift promotions (BOGO mechanics)
- Tiered rewards progress bar
- Countdown timers for urgency
- Shipping protection and warranty toggles
- Multi-language and multi-currency support
Verdict on Amp
Amp Slide Cart is a well-established cart drawer app with a perfect 5.0 rating since 2019. It offers a comprehensive feature set including tiered rewards, free gifts, and urgency timers all within the slide cart experience.
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.
Amp vs Kits — Side-by-Side Feature Comparison
Wondering which app offers the features you actually need? This feature-by-feature breakdown shows exactly where Amp and Simple Bundles & Kits differ — so you can make an informed decision for your Shopify store.
| Feature | Amp Slide | Simple Bundles & |
|---|---|---|
| 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.
Amp Slide Cart Upsell Drawer
- Shopify Admin
- Lifetimely Profit Analytics
- ReCharge
- Skio
Supported Languages
English
Simple Bundles & Kits
- Checkout
- Shopify POS
- Shopify Flow
- Shopify Admin
- Amazon by Codisto
- Hydrogen
- Judge.me Reviews
- POS & Shop app
Supported Languages
English