I Tested The 7 Best Free Shopify Cart Upsell Apps and Here's My #1 Pick 💅
You’ve got 7 Shopify cart upsell apps promising to boost your Shopify store’s sales through cart upsells—but which one actually works? After stress-testing every major free option (and analyzing over 23 criteria), I’ll cut through the noise. Here’s my hands-on breakdown of features, hidden costs, and real-world performance.
Personal Insight: Last month, I A/B tested the Snap Cart Drawer app’s progress bar in 10 client stores. Snap increased its average order value (AOV) by 19% in 30 days – outperforming others without. Let’s dissect why.
Why Your Shopify Store Needs a Cart Upsell App (Especially a Free One)
As I just shared an A/B test case study of the Snap Cart Drawer app, cart upsell apps aren’t just for enterprise brands. Whether you’re selling handmade candles or premium skincare, these tools help you:
Boost average order value (AOV) by 15-30% through strategic product recommendations.
Reduce cart abandonment with sticky add-to-cart buttons and progress bars that keep shoppers engaged.
Create urgency with free shipping thresholds (e.g., “Spend $25 more for FREE shipping!”).
But here’s the catch: Many apps charge $20+/month for features you can get for free. After implementing these tools for my all store and 10+ stores, I’ve seen firsthand how the right app can turn casual browsers into repeat buyers—no coding required.
The 7 Best Free Shopify Cart Upsell Apps: Head-to-Head Comparison
We’re comparing 7 apps across 23 criteria—but these 11 features below determine 90% of success:
Feature Comparison Table: Free Cart Upsell Apps (2025)
👍: Best in class
✅: Feature available
❌: Feature not available
| App Name | Progress Bar | Cart reserved | Product Add-Ons | AI Recommendations | Sticky Cart | Trust Badges | Shipping Protection | Gift Wrappping | Estimate Shipping Rate | Agree Terms Checkbox | FOMO Triggers |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Snap Cart Drawer Upsell | 👍 | 👍 | ✅ | ❌ | ✅ | 👍 | ✅ | 👍 | ✅ | ✅ | 👍 |
| TZ Slide Cart Upsell | ✅ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ | ❌ |
| Amote: Cart Upsell Cart Drawer | 👍 | ❌ | ✅ | ❌ | ✅ | 👍 | ❌ | ❌ | ❌ | ❌ | 👍 |
| Kaching Cart Drawer AI Upsell | 👍 | ❌ | ✅ | ❌ | ❌ | ❌ | ✅ | ✅ | ❌ | ❌ | 👍 |
| XB Sticky Add-to-Cart Upsell | 👍 | ❌ | ✅ | ✅ | ✅ | ✅ | ✅ | ❌ | ❌ | ✅ | 👍 |
| AMP ‑ Slide Cart Drawer | ✅ | ❌ | ✅ | ❌ | ✅ | ❌ | ✅ | ❌ | ❌ | ❌ | ✅ |
| Sticky Cart: Slide Cart Drawer | ✅ | ❌ | ✅ | ❌ | 👍 | ❌ | ❌ | ❌ | ❌ | ❌ | ✅ |
What are those features? Why you need them?
Progress Bar: Indicates milestones for free shipping, rewards, or discounts based on cart value.
Cart Reversed: Allows customers to revert changes made to their cart.
Product Add-Ons: Enables additional products or services to be added directly from the cart.
AI Recommendations: Uses artificial intelligence to suggest products or upsells.
Sticky Cart: Keeps the cart visible as customers navigate through the store.
Trust Badges: Displays icons or certifications to build customer trust.
Shipping Protection: Offers insurance or guarantees for shipped items.
Gift Wrapping: Provides an option for gift wrapping at checkout.
Estimate Shipping Rate: Displays estimated shipping costs in the cart.
Agree Terms Checkbox: Requires customers to agree to terms and conditions before checkout.
FOMO Triggers: Creates urgency through scarcity or countdown timers.
Performance and Pricing Comparison of Best Free Shopify Cart Upsell Apps
| App Name | Pricing | Easy to Use | Analytic Reports | Support | Performance |
|---|---|---|---|---|---|
| Snap Cart Drawer Upsell | Free | Very easy to use, go live in a few clicks with premade templates | ✅ | Great live chat support and quick response | ★★★★⯪ |
| TZ Slide Cart Upsell | Free | You need to spend quality time navigating the app features and ensure that your store maintains good standards | ✅ | Live chat, and support requests may take a while | ★★★⯪☆ |
| Amote Cart Upsell | Free | The setup process was seamless, and the interface is user-friendly | ✅ | The live chat support is good, but there may be a bit of a wait time | ★★★★⯪ |
| Kaching Cart Drawer | Free | The interface is clean, easy of use, and works great | ✅ | Live chat, good support | ★★★★☆ |
| XB Sticky Add-to-Cart | Free | Easy to set up with an intuitive interface | ✅ | Good live chat support, quick respond | ★★★★⯪ |
| AMP Slide Cart Drawer | Free plan available | You need to spend time going over the app features and make it work well on your store | ✅ | Great support, a bit of a wait time | ★★★★☆ |
| Sticky Cart: Slide Cart Drawer | Free | User-friendly interface | ✅ | Good support, and support requests may take a while | ★★★★⯪ |
My #1 Pick: The Best Free Shopify Cart Upsell App - Snap Slide Cart Progress Bar
Unlike most “free” apps that limit all the useful features to paid tiers, this one actually delivers full functionality without hidden costs.
What I Like About Snap Slide Cart
💅 Easy Implementation
Setting up was refreshingly simple. I’m not particularly tech-savvy, but their templates made it painless to get started. I just selected a style that matched my store’s look, made a few color adjustments, and it was up and running in about 15 minutes.
💋 Actually Free
As a Shopify conversion specialist, I understand that a new store owner watching every expense that why I appreciate that Snap is not charging during their launch period.
Many apps start free and then hit you with surprise charges once you’re dependent on them, but so far I haven’t encountered any upsells or limitations.
💍 Helpful Support
I sent a request to customize the progress bar to match my theme, and their support team replied within a few hours. That’s not something I expected from a free app, honestly.
🙎 Features That Make Sense
The features aren’t bloated or overwhelming – just practical tools that work:
- The sticky cart button keeps the cart accessible without being annoying
- The progress bar has encouraged customers to add more items; I’ve noticed a 19% increase in average order value after implementing a cart upsell progress bar test across 10 client stores for 30 days.
- The option to add gift wrapping and shipping protection has generated a small but steady additional revenue stream while enhancing user experience.
Why You Might Want to Try Snap Slide Cart
✅ Want to encourage customers to reach spending thresholds
✅ Need a mobile-friendly cart experience
✅ Don’t want to spend time dealing with complex setups
✅ Are trying to keep your app costs down while growing your store
While no app is perfect for everyone, this one strikes a good balance between features and usability. And since it’s free to try, there’s really no downside to seeing if it works for your specific store needs.
Upsell App Free
Revamp Your Cart Drawer and Make It an Upsell Machine Today!
While your results may vary depending on your specific store and products, I’ve seen a noticeable improvement in both my average order value and overall conversion rate when implementing a cart upsell. Customers complete purchases more frequently, and they’re adding more items to reach those free shipping thresholds.
Is it perfect? No app is. But for store owners who want a straightforward way to boost their bottom line without adding another monthly subscription, Snap Slide Cart Progress Bar is easily my top recommendation. Whether you’re just starting out or looking to optimize an established store, it’s worth taking it for a spin—especially while it remains completely free during their launch period.
Don’t overthink this one. Install the app, set up a progress bar for your free shipping threshold, and watch what happens to your numbers. Sometimes the simplest solutions really do work best.
Sophia Dao is a Shopify Conversion Specialist at WizzCommerce, specializing in e-commerce and Shopify solutions. With a passion for digital marketing and a keen eye for detail, Sophia creates engaging content that helps businesses thrive online. When she’s not writing, she enjoys exploring the latest trends in tech and commerce. Follow Sophia for practical e-commerce tips and the latest marketing insights!
