The blog reviews the 7 leading Shopify checkout upsell apps, including Checkout Wiz, Upsell Plus, Zipify One Click Upsell, Checkout Buddy, Monk Free Gift, One Click Checkout Upsell, and CartHook Post-Purchase Upsell.
Shopify checkout upsell apps are used to show product recommendations, cross-sells, upsells, line-item upgrades, and line-item volume-based upsells during checkout or immediately after purchase, when buyer intent is highest.
Shopify does not support in-checkout upsells on standard Shopify plans. The ability to modify checkout requires Shopify Plus and the use of Checkout Extensibility through a dedicated Shopify checkout app.
The Shopify checkout apps were evaluated based on checkout upsell types, rule depth and targeting, support for free gifts, support for line-item upsells, analytics, A/B testing, pricing structure, and merchant reviews.
The guide concludes that Checkout Wiz is the most well-rounded option overall because it supports multiple checkout upsell formats and includes native A/B testing alongside broader checkout customization.
Introduction
Shopify checkout upsell apps are used by stores to increase their average order value by showing relevant add-ons, upgrades, or recommendations within the checkout. This guide helps you uncover the best checkout upsell apps based on their upsell capabilities, widget design, placement at checkout, reviews, pricing, analytics & more.
Remember, Shopify does not allow merchants to add upsells at checkout on standard plans. Checkout modifications & upsells are available only in Shopify Plus stores. But to make such changes, a store needs a checkout upsell app. Hence, I’ve written this comparative guide, which will help you pick the best. Let's dive in.
Feature Comparison Table: Top Shopify Checkout Upsell Apps
Checkout Wiz is a Shopify checkout upsell app that supports multiple in-checkout upsell types plus post-purchase offers. Over and above this, the app lets you do various checkout customizations & is backed by a robust a/b testing engine. It’s positioned as an all-in-one checkout customization & optimization app with a dedicated focus on high-converting checkout upsells that drive up AOV for a store.
Built-in A/B testing & analytics for checkout upsells
All-in-one checkout customization capability, i.e. Custom content, banners, trust badges, surveys, free shipping progress bar & more.
Pros
Most-exhaustive options for upsell & cross-sell layouts & types
Customizable widgets to create on-brand upsells
Comprehensive upsell logic and rules engine
Sharp targeting & AI-based recommendations
Strong support and integration with Shopify checkout extensibility
Cons
Pricing includes features over & above checkout upsells
Pricing
Free trial
Essential Plan - $49/month
Plus Growth Plan - $99/month
2. Aftersell
Aftersell is a Shopify checkout upsell app that focuses more on post-checkout upsells, such as one-click upsell and downsell offers after checkout. It also has options for in-checkout upsells.
Key Features of Aftersell
Checkout page upsells (Shopify Plus exclusive), including order bumps and in-checkout offers.
One-click post-purchase upsell & downsell offers without requiring re-entry of payment details.
Targeting rules such as products, cart value, customer tags, and language.
A/B testing & analytics for optimization
Pros
Very strong post-purchase upsell workflow that doesn’t disrupt checkout.
Cons
Limited options in terms of checkout upsell layouts
Pricing
Free plan (development/staging)
$34.99/mo — up to 500 store orders.
$54.99/mo — up to 1000 orders.
$99.99/mo — up to 2000 orders.
3. UpsellPlus Checkout Upsell
UpsellPlus is an intuitive Shopify checkout upsell app for creating rule-based checkout upsells & upsells on thank-you pages.
Key Features of Upsell Plus
Checkout page upsell blocks
Real-time analytics and optimization
A/B testing & performance analytics
Post-purchase upsells
Pros
Easy setup
Strong conversion analytics
Cons
Feature set less deep than other apps
Revenue based pricing. Higher revenue means higher pricing.
Pricing
$49/mo up to $500 app-generated revenue
$119/mo up to $2,000 upsell revenue/month
$199/mo up to $5,000 upsell revenue/month
Higher tiers available
4. Zipify One Click Upsell (OCU)
Zipify is a basic Shopify checkout upsell app that offers a funnel-based upsell system supporting checkout upsells for Shopify Plus merchants. The app also offers post-purchase functionality & side cart upsells.
Key Features of Zipify OCU
Checkout upsells
Pre-purchase popups
Post-purchase upsells
Slide cart with upsells
AI-generated offers
A/b testing
Pros
Effective upsell funnel builder from cart, to checkout & post-purchase
Cons
Revenue-share pricing
Steeper learning curve
Pricing
$8/month + variable revenue share
5. Checkout Buddy
Checkout Buddy is a Shopify checkout upsell app with checkout customization capabilities.
Key Features of Checkout Buddy
Upsells & cross-sells
Free gift logic
Discount settings for tiered discounts, product discounts, collections & more.
Checkout add-ons
Extensive block library
Customer targeting
Pros
Flexible checkout discount logic
Cons
Limited free plan
Learning curve for advanced setups
Pricing
Free Plan (Limited)
Business Plan: $50/month
6. Monk Free Gift + BOGO + Cart Upsell
Monk is a checkout upsell app which offers the feature as a part of a larger free gift, bogo & discount offering.
Key Features of Monk Commerce
Checkout upsells
Checkout tiered rewards bars
Auto-added free gifts
BOGO logic
Checkout progress bar
Pros
Discount promotions tool, apart from checkout upsells
Predictable pricing
Cons
Less checkout-specific layout control
Focused more on promotions than checkout design & optimization
Pricing
Start: $49/month
Scale: $149/month
7. Checkout Plus
Checkout Plus is a dedicated Shopify checkout upsell app that lets you add product recommendations, cross-sells, and upsells at checkout.
Key Features of Checkout Plus
Checkout upsells
One-click post-purchase offers
Automatic recommendations
Pros
Checkout customization apart from upsells
Cons
No free trial available
Pricing
Free for development stores
Basic $29/month
Plus $49/month
Advanced $89/month
Why Do You Need a Shopify Checkout Upsell App?
Shopify’s primary limitation for checkout upsells is that true checkout customization is only available on Shopify Plus. Only Shopify Plus stores can access Shopify’s Checkout UI Extensions and make changes to their Shopify checkout.
Checkout extensibility allows merchants to introduce elements such as:
In-checkout upsell blocks
Trust badges and assurance messaging
Free-shipping progress bars
Reviews and ratings
Custom fields and validations
However, Shopify does not provide native tools to build these experiences out of the box. Merchants must either develop a custom checkout app or rely on dedicated Shopify checkout upsell apps built on checkout extensibility.
As a result, implementing checkout upsells on Shopify requires both the Shopify Plus plan and a specialized checkout upsell app, making third-party solutions essential for merchants who want to optimize checkout performance and increase AOV.
Conclusion
In this guide, we examined leading Shopify checkout upsell apps such as Checkout Wiz, Aftersell, Zipify, UpsellPlus, Checkout Buddy, Monk & Checkout Plus. We evaluated them on upsell formats, targeting rules, line-item upgrades, analytics, AB testing, pricing, and reviews.
Overall, Checkout Wiz stands out as the most well-rounded Shopify checkout upsell app, offering a variety of checkout upsell options, more than any other. Apart from this, it is effective in other checkout customizations, a/b testing, and optimizations.
A good way to approach this is to shortlist a few apps, sign up for the trial period, and see what best works for you. All the best!
Hurrify customers to buy within a given timeframe with a sales countdown timer & improve conversions
Another popular Shopify checkout app is Checkout Promotions. The app comes with the ability to leverage a collection of highly robust visibility rules that help show customers one-click post purchase upsell promotions after an order payment has been made. Some of its key features include:
Features
AI recommended and manual recommendations for upselling.
Complete branding control.
Checkout Upsell for increasing AOV.
AI recommended and manual recommendations for upselling.
Pricing
Development
Free
Monthly Plan
$99/ month
Plus Plan
$99/ month
Plus Plan
$99/ month
FAQ: Best Shopify Checkout Upsell App
What is a Shopify checkout upsell app?
A Shopify checkout upsell app displays targeted product recommendations, bundles, or upgrades during the checkout process to boost average order value (AOV) when buyer intent peaks. These apps leverage Shopify's Checkout UI Extensions for seamless integration, supporting layouts like vertical stacks, hero banners, checkboxes, and line-item actions.
Do I need Shopify Plus for Shopify checkout upsell apps?
Yes, true in-checkout upsells require Shopify Plus, as standard plans cannot modify the checkout page.
Shopify Plus unlocks Checkout Extensibility, allowing Shopify checkout upsell apps like Checkout Wiz to add upsell blocks, trust badges, and custom fields without custom coding.
How do Shopify checkout upsell apps differ from post-purchase upsells?
Checkout upsells appear before payment (e.g., during shipping steps), while post-purchase upsells show on thank-you or order status pages after completion.
Both increase AOV, but Shopify checkout upsell apps target the final pre-payment moment for higher conversion on impulse adds like free gifts or volume discounts.
What features make the best Shopify checkout upsell apps effective?
Top Shopify checkout upsell apps offer advanced rules (cart value, tags, UTMs), multiple layouts (horizontal, vertical, line-item), AI recommendations, volume discounts, and native AB testing.
They also include analytics for revenue lift and integrate with subscriptions, ensuring non-intrusive offers that match brand design.
Can Shopify checkout upsell apps handle volume discounts and free gifts?
Yes, many Shopify checkout upsell apps support tiered volume discounts (e.g., "buy 2 more, get 10% off") and free gifts based on thresholds or codes.These apply automatically via line-item blocks, with customizable messaging and quantity selectors for bulk incentives. One such app is Checkout Wiz.
How to measure success with Shopify checkout upsell apps?
Track metrics like upsell acceptance rate, incremental AOV lift, revenue per session, and checkout completion impact using built-in dashboards. AB testing in apps like Checkout Wiz helps optimize offers, aiming for 10-30% AOV increases without harming primary conversions.
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Sid B
Sid is the founder of Skai Lama and The Indian Dream Podcast. He is passionate about building SaaS and talks about eCommerce Growth, 0-1 Startups, Building Businesses and Brands, and Shopify.