Did you know that checkout upsells can boost your Shopify store's revenue by up to 30%? Yet with hundreds of apps available, finding the right solution can be overwhelming.
As Shopify app developers, we've seen merchants struggle with limited native checkout features, wasted time testing incompatible apps, and performance issues from poorly optimized solutions.
That's why we've created this guide to the top 5 Shopify checkout upsell apps for 2025. We've analyzed features, compared pricing, and provided honest pros & cons with real reviews from merchants to help you choose the perfect app for your store.
Ready to boost your revenue with checkout upsells? Let's dive in!
1. Understanding Shopify checkout upselling apps
1.1 What is checkout upselling and why does it matter?
Checkout upselling is a strategic sales technique where you offer customers additional, complementary products or related items right at the moment they're completing their purchase. This critical touchpoint happens when customers are already committed to buying, making them significantly more receptive to relevant additional offers.
Shopify checkout upsell example
The psychology behind checkout upselling
Customers have already overcome the initial hesitation of making a purchase. The mental "buying barrier" has been crossed, and they're in a psychological state where adding "just one more item" feels less significant than their initial decision to buy.
1.2 The difference between checkout upsell vs. cart upsell vs. post-purchase upsell
While all upselling strategies aim to increase order value, they operate at different stages of the customer journey:
- Cart upsell: Happens while items are still in the cart, before reaching checkout. These offers typically appear as pop-ups or suggestions when items are added to cart or viewed in the cart page.
- Checkout upsell: Takes place during the actual checkout process, when payment details are being entered. These are often presented as one-click add-ons that don't disrupt the checkout flow.
- Post-purchase upsell: Occurs after checkout completion but before reaching the thank you page. These one-time offers leverage the momentum of a just-completed purchase.
Each approach has its merits, but it's important to implement checkout upsells strategically. While customers are at their peak buying momentum during checkout, remember that overly complicated or intrusive upsell offers can increase cart abandonment rates. The best Shopify checkout upsell apps balance revenue opportunities with maintaining a smooth, frictionless checkout experience.
1.3 Key features of effective checkout upsell apps
To maximize the benefits mentioned above, look for these essential features in Shopify checkout upsell apps:
- Targeted recommendations: Automatically recommend products and rule-based product pairings (specific products, collections, categories, etc.) to present the most relevant offers to each customer.
- Auto-added products: Automatic addition of free or discounted items at specific cart thresholds to incentivize larger purchases.
- Gift goal incentives: Progress bars and visual elements that encourage customers to reach spending thresholds for rewards or free gifts.
- Third-party integrations: Compatibility with subscription apps and other tools to create specialized upsell offers for recurring purchases.
- Technical support: Expert assistance for implementation challenges, troubleshooting checkout conflicts, and optimization guidance to ensure seamless integration with your Shopify theme and other apps.
- Customization options: Brand-matching designs, flexible display formats, and customizable messaging to seamlessly integrate with your store.
2. Top 5 checkout upsell apps for Shopify stores
Before we explore each checkout upsell app in detail, here's a quick comparison of the top 5 Shopify checkout upsell apps. This at-a-glance table highlights customer ratings and pricing to help you quickly identify which options might best suit your store's needs.
| App | Rating | Built for Shopify | Pricing |
|---|---|---|---|
| 1. Qikify Checkout Customizer | 4.7/5 | Yes | Free - $99/mo |
| 2. Checkout Buddy | 4.7/5 | No | Free - $49/mo |
| 3. Order Bump - Checkout Upsells | 4.9/5 | No | $39 - $139/mo |
| 4. Post Purchase Upsell—ReSell | 4.8/5 | Yes | Free - $49.99/mo |
| 5. Cart Buddy: Checkout Upsells | 5/5 | No | Free |
2.1. Qikify Checkout Customizer
Best for: Shopify Plus merchants seeking comprehensive Shopify checkout upsell app with powerful upselling capabilities and extensive fraud prevention features.
Qikify Checkout Customizer app
- Rating: 4.7 ⭐ (40+ reviews)
- Built for Shopify: Yes
- Demo store: View
Pricing plan:
- FREE plan available for all Shopify store plans (includes reordering/hiding/renaming payment options)
- $99/month or $950.40/year (save 20%) for Shopify Plus merchants (14-day free trial - Free for Development/Sandbox stores)
Key features:
- Direct in-checkout upsells with product offer blocks during checkout
- One-click add-on products with native Shopify discount integration
- Auto-added free gifts to surprise customers
- Cart updater allowing customers to add complementary products instantly
- Conditional upsell rules based on cart contents or customer segments
- Multi-language upsell support for global selling
- Full compatibility with Shopify Plus checkout extensibility
Pros
- Comprehensive checkout customization solution for Shopify Plus
- Native integration with Shopify Checkout extensibility
- Multiple upsell types including add-ons and free gifts
- Conditional rules for targeted offers
- Technical support, custom app for specific requirements
- Seamless functionality with Shopify B2B and Markets
Cons
- More complex setup due to extensive customization options
- May have steeper learning curve for beginners
2.2 Checkout Buddy
Best for: Shopify Plus merchants looking for comprehensive checkout customization with powerful upselling, free gifts, and discount functions.
Checkout Buddy app
- Rating: 4.7 ⭐ (30+ reviews)
- Built for Shopify: No
- Demo store: View
Pricing plan:
- Free plan with 1 active block + function (Shopify Plus required)
- $49/month or $470.40/year (save 20%) for business plan with all features (10-day free trial)
- Free for development/sandbox stores (email support required)
Key features:
- Checkout upsells and line item add-ons to increase average order value
- Free gift offers based on cart conditions and purchase thresholds
- Native discount functions powered by Shopify functions
- Custom checkout fields to capture additional customer information
- Flexible display rules based on cart, customer, address, or market
- Full compatibility with Shopify Checkout extensibility
Pros
- Native integration with Shopify checkout extensibility
- Comprehensive checkout customization options
- Built-in social proof elements to boost conversions
- Flexible display rules based on cart and customer data
- Ability to customize payment and shipping methods
- Migration path from legacy script editor
Cons
- Free plan limited to just one active block/function
- Higher learning curve for non-technical users
- More expensive than entry-level upsell solutions
2.3 Order Bump - Checkout Upsells
Best for: Merchants seeking a complete Shopify checkout upsell app across the entire purchase journey - cart, checkout, and post-purchase.
OrderBump - Checkout Upsells
- Rating: 4.9 ⭐ (20+ reviews)
- Built for Shopify: No
- Demo store: View
Pricing plan:
- Standard Shopify: $39/month
- Shopify Plus: $139/month (14-day free trial for both plans)
Key features:
- Versatile upsell placements: in-cart, checkout page, and post-purchase offers
- Smart triggering based on product tags, SKU, cart value, and more
- AI-powered product matching to automatically suggest the best upsell offers
- One-click post-purchase upsells to increase average order value
- Customizable product titles, descriptions, and CTA buttons
- Detailed analytics to track performance and conversions
- Checkout page modification for Shopify plus merchants
Pros
- Comprehensive upsell options across cart, checkout, and post-purchase
- AI-powered product matching for automated recommendations
- Flexible triggering based on multiple cart conditions
- Customizable messaging and CTA buttons
- Different plans for standard Shopify and Plus merchants
- Easy to set up with helpful customer support
Cons
- Limited customization of checkout page design
- Fewer integration options compared to some competitors
2.4 Post Purchase Upsell—ReSell
Best for: Merchants seeking comprehensive Shopify checkout upsell apps across checkout and thank you pages with flexible pricing options.
Post Purchase Upsell-Resell
- Rating: 4.8 ⭐ (65+ reviews)
- Built for Shopify: Yes
- Demo store: View
Pricing plan:
- Pay as you go: Free to install with 5% of extra revenue generated by the app
- Standard: $14.99/month (includes 250 orders/month, $0.2 per additional order)
- Professional: $24.99/month (includes 1,000 orders/month, $0.1 per additional order)
- Unlimited: $49.99/month (unlimited orders with no additional charges)
- 30-day free trial for paid plan
Key features:
- One-click upsell and cross-sell offers during and after checkout
- Thank you page upsell promotions and customization
- Multiple upselling and cross-selling widgets
- "Frequently bought together" product recommendations
- Automated upsell recommendations and discount offers
- Multi-product downsell capabilities
- Detailed analytics to track campaign performance
Pros
- Flexible pricing options including revenue-share model
- Comprehensive upsell capabilities at checkout and post-purchase
- Multi-language support for international merchants
- "Frequently bought together" product recommendations
- Detailed analytics to track campaign performance
- 30-day free trial for all paid plans
Cons
- Additional charges for exceeding monthly order limits on lower plans
- May require time to optimize for best results
- Some features have limited customization options
2.5 Cart Buddy: Checkout Upsells
Best for: New merchants or those on a budget looking for a free, AI-powered Shopify checkout upsell app.
Cart Buddy: Checkout Upsells
- Rating: 5 ⭐ (5 reviews)
- Built for Shopify: No
Pricing plan:
- Free
Key features:
- Smart AI-powered product recommendations at checkout
- Completely free to use with core functionality included
- Seamless integration with your store's checkout process
- Automated offer management that saves time
- Personalized product suggestions based on customer behavior
Pros
- Completely free core functionality
- AI-powered product recommendations
- Simple setup process with minimal configuration required
- Automated offer management saves time
- No risk approach to test checkout upselling
- Regular updates as a newer app
Cons
- Newer app with fewer reviews and proven track record
- Fewer customization options for offer display
- May lack some integrations with other apps
3. Conclusion
Choosing the right Shopify discount apps can significantly impact your store's success. Consider your specific needs, budget, and technical requirements when making your choice.
- For Shopify plus merchants seeking comprehensive checkout customization, Qikify Checkout Customizer provides the most robust solution.
- For mid-sized merchants looking for simplicity and effectiveness, Checkout Buddy offers an excellent balance of features and usability.
- Growth-focused stores will appreciate OrderBump's advanced targeting capabilities
- While ReSell excels at post-purchase optimization.
- New merchants or those on a budget should start with Cart Buddy's free plan to test the waters.
Remember that the key to successful checkout upselling lies not just in the app you choose, but in how you implement it:
- Ensure your upsell offers are genuinely relevant to the customer's original purchase
- Keep offers simple and easy to add with one click
- Test different price points and offer types to find what works best for your audience
- Monitor performance and refine your strategy based on data
Ready to boost your average order value and maximize revenue? Search for the most suitable Shopify checkout upsell app on the Shopify app store and implement these strategies today!
4. Common questions about Shopify checkout upsell apps
1. Do I need Shopify Plus to use checkout upsell apps?
Not necessarily. While some advanced checkout customization features require Shopify Plus, many of the apps mentioned above work with standard Shopify plans as well.
2. How much can checkout upsells increase my revenue?
Based on industry data and merchant testimonials, well-implemented checkout upsells typically increase average order value by 10-30% (Forrester Research). This translates directly to revenue growth without additional marketing costs, making it one of the most cost-effective optimization strategies available.
3. Will adding upsells slow down my checkout process?
Modern checkout upsell apps are designed to be lightweight and minimize impact on page load times. The best apps (like those reviewed in this article) ensure that upsell offers don't disrupt the checkout flow or create friction that might lead to abandoned carts.
4. Can I offer discounts on my upsell products?
Yes, most checkout upsell apps allow you to offer products at special discounted prices available only at checkout. This creates a sense of exclusivity and adds additional incentive for customers to accept the offer.
Note
For seamless integration, choose an app that natively supports Shopify discounts. The Qikify Checkout Customizer app is one option that ensures compatibility.
5. How do I choose which products to offer as upsells?
The most effective checkout upsells are:
- Complementary to what's already in the cart
- Lower in price than the main purchase (typically 15-25% of the cart value)
- Products with high margins to maximize profitability
