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

After spending hours on testing various Shopify cart upsell apps, I found that Snap Slide Cart Progress Bargenuinely met all my needs for a cart upsell solution.

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

I believe the Snap Slide Cart Progress Bar is the best free Shopify app for cart upsells that I have tested overall. If you're looking for a cart solution that balances functionality with simplicity, Snap Slide Cart is worth checking out. It's particularly good if you:

✅ 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.

Test Snap Cart Drawer
Upsell App Free Install now for FREE and see why store owners are switching to Snap Slide Cart. Set up takes just minutes, with no coding required. Start turning browsers into buyers today! Free for 200 First Installs

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.