Top Shopify Checkout Upsell App (2026) Features Compared

Sid B
January 29, 2026
Share article
Most Powerful Checkout Designer & Optimizer
Most Powerful Checkout Designer & Optimizer
Most Powerful Checkout Designer & Optimizer
Most Powerful Checkout Designer & Optimizer
Summary
  • 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

App Name Checkout Upsells – Related Features Other Supporting Features Reviews & Rating Price
Checkout Wiz ✅ In-checkout upsells & cross-sells
✅ Line-item upgrades
✅ Volume & tiered pricing upsells
✅ Free gift upsells
✅ Subscription upgrades
✅ Post-purchase & thank-you page upsells
✅ A/B testing & analytics
✅ Advanced targeting rules
✅ AI-based recommendations
✅ Checkout customization (trust badges, banners, surveys)
✅ Shipping & payment method control
⭐ 4.9/5 From $49/month
Aftersell ✅ Checkout page upsells (Plus only)
✅ One-click post-purchase upsells
✅ One-click downsells
✅ A/B testing
✅ Performance analytics
✅ Targeting by cart value, tags & language
⭐ 4.8+/5 From $34.99/month
UpsellPlus Checkout Upsell ✅ Checkout upsell blocks
✅ Thank-you page upsells
✅ Post-purchase upsells
✅ A/B testing
✅ Real-time analytics
✅ Dynamic rules & targeting
⭐ ~4.9/5 From $49/month
Zipify One Click Upsell (OCU) ✅ Checkout upsells (Plus only)
✅ Pre-purchase pop-ups
✅ Post-purchase upsells & downsells
✅ Funnel builder
✅ AI-generated offers
✅ A/B testing
✅ Slide cart with upsells
⭐ 4.5/5 $8/month + revenue share
Checkout Buddy ✅ Checkout upsells & cross-sells
✅ Free gift logic
✅ Discount-based upsells
✅ Extensive checkout blocks
✅ Customer targeting rules
✅ Custom checkout fields
✅ Checkout branding & layout control
⭐ 4.9/5 Free → $50/month
Monk Free Gift + BOGO + Cart Upsell ✅ Checkout upsells
✅ Tiered reward upsells
✅ BOGO & volume discounts
✅ Cart & product-page upsells
✅ Auto-added free gifts
✅ Progress bars & promotions analytics
⭐ 4.9/5 From $49/month
Checkout Plus ✅ Checkout product recommendations
✅ Cross-sell & upsell blocks
✅ One-click post-purchase offers
✅ Automatic recommendations
✅ Basic checkout customization
⭐ 4.3/5 From $29/month

Detail Review: Best Shopify Checkout Upsell App  

1. Checkout Wiz (Wiz: Checkout Upsells & Rules) - BEST OVERALL

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. 

Key Features of Checkout Wiz 

  • Multiple checkout upsell & cross-sell layouts- vertical, horizontal, checkbox & more. 
  • Subscription upgrades within checkout in-line items
  • Volume discount & tiered pricing upgrades
  • Gifting add-ons such as gift wraps, cards, etc. 
  • Free shipping progress bar at checkout 
  • AI-based recommendations
  • Quantity selector & variant selector 
  • Post-purchase upsells on thank you page, post-purchase page & order status page
  • On-click upsell & downsell 
  • Advanced targeting rules (products, cart value, customer tags, language, UTMs).
  • 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!

No items found.

Rushy Scarcity Countdown Timer

Free to install
Built for Shopify

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?
Do I need Shopify Plus for Shopify checkout upsell apps?
How do Shopify checkout upsell apps differ from post-purchase upsells?
What features make the best Shopify checkout upsell apps effective?
Can Shopify checkout upsell apps handle volume discounts and free gifts?
How to measure success with Shopify checkout upsell apps?
Sid B

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.

Checkout Design & Optimization for AOV & Conversion

bfcm 2025 guide
Access Now