7 Best Shopify Checkout Upsell Apps with Quick Demo (2025)

If you’re a Shopify store owner looking for ways to boost your average order value, Shopify checkout upsell is one of the most effective strategies out there. 

In fact, a well-placed Shopify upsell at checkout can often be the easiest way to increase revenue without spending a dollar more on ads.

I tested dozens of Checkout upsell Shopify apps on my development store, and after plenty of trial and error, I’ve narrowed it down to these 7 best options. 

Each one has its own strengths, so I’ve listed a short preview, highlights (including ratings, review counts, active store installs, pricing, and whether a free plan exists), plus my personal verdict. 

By the end, you’ll have a clear idea of which app is the best fit for your store.

The 7 Best Shopify checkout upsell apps

The following are the best apps for checkout upsell in Shopify. 

Each one has its own strengths, so I’ve listed a short preview, highlights, plus my personal verdict.

1. Selleasy
2. Aftersell
3. Candy Rack
4. Reconvert
5. Honeycomb
6. Upsellplus
7. C builder

Best Shopify Checkout Upsell Apps compared

Read through the blog to get to know the features for each app and find the one that best suits your store.

1. Selleasy

Highlights

What I think about Selleasy

This is one of the easiest Shopify upsell-at-checkout apps I’ve used. What I really liked:

Lower cart abandonment – Shoppers can add or remove products and even choose variants directly from checkout, without going back to the product page. This keeps the buying flow smooth and reduces drop-offs.

Smart AI suggestions – The app uses Shopify’s AI to recommend upsell products automatically, so I don’t have to set everything manually.

Multiple upsell placements – This app offers 18 different upsell widgets that you can place across various pages of your store, not just at checkout.

Affordable pricing — Starts with a free plan, and even the highest paid tier is still cheaper than most other apps.

If you want an upsell app that’s simple, flexible, affordable  and smart, Selleasy is a great pick.

2. Aftersell

Highlights

What I think about Aftersell

Aftersell is super easy to set up with its clean interface.
But what really makes it stand out is the A/B testing and analytics.

Here’s what I liked:

Quick setup – The interface is simple and user-friendly.

A/B testing – You can test different upsells to see which ones actually convert.

Detailed analytics – Shows revenue data for up to 365 days, so you can see long-term results.

Top product insights – Highlights your best-performing upsells, so you know where to focus.

If you’re looking for an app focused on checkout and post-purchase offers, Aftersell is an excellent choice.

3. Candy Rack

Highlights

What I think about Candy Rack

Candy Rack really lives up to its name,  smooth and easy to use.

Here’s what stood out to me:

Clean interface – Simple and quick to set up offers.

Show up to 10 offer products – You can show anywhere from 1 to 10 products on the checkout page.

Control the offer page – Choose exactly which page your offer appears on with just a click.

Feedback made easy – The built-in “Suggest New Features” option lets you share ideas without emailing support.

If you are looking for an upsell tool with basic customization and flexibility, Candy Rack can be a good option to consider.

4. ReConvert

Highlights

What I think about ReConvert

ReConvert is super flexible and gives you a lot of control over upsells and cross-sells.

Here’s what I liked:

Flexible offers – You can set upsells and cross-sells for almost any page.

Custom conditions – Decide exactly when and where an offer should show.

Activity report – A handy feature that shows what customers do in your store, so you can fine-tune offers.

If you are looking for an app that’s flexible and gives useful customer insights, then ReConvert would be a solid choice.

5. Honeycomb

Highlights

What I think about Honeycomb‍

Honeycomb makes it simple to create product upgrade offers right at checkout.

Here’s what stood out to me:

Clean interface – Picking the page to show an offer is just a click away.

Design flexibility – Customize mobile and desktop views separately.

Easy page selection – Use the dropdown menu to edit the exact page you want.

If you are looking for an app with strong design flexibility for checkout upsells, then Honeycomb would be an ideal choice.

6. UpsellPlus

Highlights

What I think about UpsellPlus

UpsellPlus is simple, clean, and easy to use.

Here’s what makes it stand out:

Straightforward upsell rules – Setting conditions takes just a few clicks.

Built-in free gift feature – No need for extra apps to offer gifts.

Boosts AOV effortlessly – Customers are more likely to add extra products or unlock a free gift.

If you are looking for an app that keeps upsells simple while giving you extra flexibility with free gifts, then UpsellPlus would be an ideal choice.

7. C Builder

Highlights

What I think about C Builder?

C Builder is a growing Shopify checkout upsell app. It’s simple, clean, and comes with some handy features.

Here’s what it offers:

Multiple Upsell Placements – Create upsells not only on the checkout page but also on the Thank You page and Order Status page.

Quick Offer Overview – A neat summary section inside each widget so you don’t have to keep scrolling to check the offer conditions.

Flexible Pricing – Comes with a free plan, trial plan, and paid plans starting at $49/month.

If you’re looking for an app for both checkout and post-purchase upsells, then C Builder would be an ideal choice.

How to Choose the Best Shopify Checkout Upsell App

After testing so many upsell tools, I’ve realized that choosing the right one can make or break your results. Here’s my personal checklist of what I look for and why each one matters:

• Easy Shopify integration – The last thing you want is an app that slows down your store or needs complex workarounds. A smooth integration means you can start upselling right away without tech headaches.
  
• Add/remove products directly in checkout – If customers can’t edit their upsell choice right on the checkout page, they might abandon their cart out of frustration. This simple feature can save you sales.
  
• Variant selection in checkout – Let shoppers choose sizes, colors, or styles without bouncing back to the product page. It keeps the buying flow smooth and conversion-friendly.
  
• Customizable widget design – Your upsell offer should blend in with your store’s branding, not look like a pop-up from another site. Design flexibility keeps things professional and on-brand.
  
• AI-powered recommendations – Smart suggestions based on customer behavior often convert. It’s like having a personal sales assistant built into your store.
  
• Strong analytics tools – You can’t improve what you can’t measure. Tracking your upsell performance helps you tweak offers and increase your Average Order Value over time.
  
• Fits your budget – The “most expensive” app isn’t always the best for your needs. Compare features vs. cost and make sure you’re getting real value for the price.
  
• Free trial availability – Always test before you commit. A trial lets you see if the app works with your setup and audience without spending a dime.
  
• Responsive customer support – Things go wrong sometimes. Having 24/7 support means you won’t be stuck waiting days to fix an issue that could cost you sales.

Frequently Asked Questions

1. How to upsell at checkout in Shopify?

If you're on Shopify Plus, you can add upsell offers directly in the checkout using Shopify extensions or apps like Selleasy, Candyrack or any of the above apps. 

For non-Plus users, use cart page, post-purchase, or thank-you page upsells.

2. What is the best checkout upsell app for Shopify?

Candy Rack, Selleasy, Upsellplus checkout plus and all the other above-mentioned apps have been tried and tested individually in my dev store. Be mindful of how to choose the best app by analyzing your store’s needs.  

3. How to upsell in Shopify checkout without an app?

Upselling has certain limits when you want to do it in your checkout page without an app. Usually it is done by playing around with the shipping charges and methods. 

However, using an app gives you more flexibility to add any upsell products of your choice with so many other benefits that come with the app.