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Best Shopify Checkout Upsell Apps in 2026

Every customer who reaches your checkout page is valuable. You have already spent money to bring them to your store, guide them through product discovery, and convince them to buy. At that point, increasing the value of the order becomes one of the smartest ways to improve profitability.

That’s where checkout upsells come in. Because the customer is already committed to making a purchase and payment has not happened yet, the checkout page is one of the most natural places to recommend a relevant add-on, bundle, or complementary product.

A good checkout upsell does not interrupt the buying journey. Instead, it helps customers discover something useful that goes well with the order they are already placing. When done right, it can increase average order value, improve margins, and help you capture more revenue from the customers you have already acquired.

To save you the time and effort, we researched the best Shopify checkout upsell apps available today and reviewed their core features, app store ratings, pricing structures, and suitability for different types of merchants.

This curated list breaks down the best tools to help you show relevant product recommendations directly on the checkout page. As you compare the options, keep one important limitation in mind: deeper checkout page customizations are generally available only to merchants on Shopify Plus. Read on to find the best checkout upsell app for your store.

Looking for the best Shopify apps to grow your store? Here are best checkout upsell apps you should use, free or paid, based on hundreds of recommendations.
Oak Checkout Upsell & Post Purchase

Oak Checkout Upsell & Post Purchase

by
Oak Apps
No reviews
5
(
)
Free
Key features of the app:

Oak Checkout Upsell & Post Purchase helps Shopify merchants increase average order value with checkout upsells, one-click post-purchase offers, and thank-you page upsells. It gives stores a simple, code-free way to show relevant add-ons at key moments in the buying journey.

Post-purchase upsell app: 1-click offers after checkout

Increase AOV with Upsell Funnels

Turn completed purchases into higher-value orders with these powerful features:

  • Checkout Upsells: Recommend relevant add-ons before payment while shoppers are still reviewing their order.
  • One-Click Post-Purchase Offers: Let customers accept upsells after checkout without re-entering payment or shipping details.
  • Thank You Page Upsells: Show additional offers after the order is placed to capture more value from each customer.
  • Smart Trigger Rules: Build targeted funnels based on products, collections, cart value, or customer behavior.
  • Flexible Product Displays: Feature single products, multi-product grids, or curated collections.

Pricing: Free to install

Oak will introduce flat paid plans for unlimited use, with no revenue-share commissions and no order-volume based pricing.

Ready to grow your store’s average order value? Install Oak Checkout Upsell & Post Purchase from the Shopify App Store and launch your first funnel today.

UpsellPlus Checkout Upsell

UpsellPlus Checkout Upsell

by
UpsellPlus
No reviews
5
(
139
)
Starts at $49/mo
Key features of the app:

UpsellPlus Checkout Upsell helps Shopify merchants increase AOV with checkout upsells, cart offers, product page upsells, post-purchase funnels, and thank-you page customizations. It is a strong option for brands that want to show targeted upsell and cross-sell offers across multiple stages of the buying journey.

  • Checkout Upsells: Add dynamic upsell blocks, banners, reviews, shipping bars, and product offers directly inside Shopify Checkout.
  • Post-Purchase & Thank You Page Offers: Create one-click upsell and downsell funnels after checkout, and customize thank-you pages with upsells, cross-sells, and reviews.
  • Testing & Analytics: Use A/B testing, multivariate testing, app analytics, and real-time insights to optimize upsell performance.

Pricing: UpsellPlus starts at $49/month with a 14-day free trial. Higher plans include advanced checkout customization, higher upsell revenue limits, subscription upsells, and multivariate A/B testing.

AfterSell

AfterSell

by
Rokt
No reviews
4.8
(
839
)
Starts at $34.99/mo
Key features of the app:

Aftersell is a feature-heavy platform that goes beyond standard post-purchase offers to include thank-you page widgets and checkout customizations. It is built for larger brands looking for a wide variety of tools, though it comes with a premium price tag and a more complex setup.

  • Advanced Sequences: Set up both upsell and downsell funnels using deep targeting rules like language, customer tags, and UTM codes.
  • Thank-You Page Blocks: Add product recommendations, customer reviews, or external brand offers to your order confirmation screen.
  • Plus Checkout Options: Insert social proof and widgets directly into the checkout flow, an option exclusive to Shopify Plus stores.

Pricing: Plans start at $34.99/month for up to 500 monthly store orders and scale up to $779.75/month for 25,000 orders. Keep in mind that certain features like the cart drawer require an additional payment, and the lower-cost entry tiers require you to display third-party ads on your store.

Kaching Post Purchase Upsell

Kaching Post Purchase Upsell

by
Kaching
No reviews
5
(
248
)
Starting $4.99/mo
Key features of the app:

Kaching allows merchants to display one-click recommendations on the checkout completion page. It is a straightforward option for stores looking to set up basic post-purchase offers without dealing with code.

  • One-Click Acceptance: Customers can buy instantly without re-typing their credit card or shipping info.
  • Basic Triggers: Set up offers using conditional rules like minimum order value or UTM tags.
  • Brand Matching: Customize the look of your upsell pages to fit your store design.

Pricing: Plans scale based on monthly order volume, starting at $4.99/month for up to 99 orders and hitting $249.99/month for stores with 20,000+ monthly orders.

Wiz Checkout Upsell

Wiz Checkout Upsell

by
Skai Lama
No reviews
4.9
(
54
)
Starts at $49/mo
Key features of the app:

Wiz: Checkout Upsell helps Shopify merchants turn checkout and post-checkout pages into revenue-driving touchpoints. The app lets you add upsells, volume discounts, subscription upgrades, free gifts, trust badges, shipping information, post-purchase offers, thank-you page upsells, and order status page customizations.

  • Checkout AOV Boosters: Add upsells, discounts, subscription upgrades, free gifts, checkout banners, reviews, trust badges, and custom checkout blocks.
  • Post-Purchase & Thank You Page Offers: Show personalized one-click upsells after checkout, customize thank-you pages, and add order status page upsells or review blocks.
  • A/B Testing & Analytics: Run A/B tests on checkout blocks and track real-time performance to understand which offers drive the most conversions.

Pricing: Wiz starts at $49/month with a 14-day free trial. Checkout upsells are available from the Plus Growth plan at $99/month, while higher plans include advanced checkout blocks, onboarding support, A/B testing, performance review calls, and custom extension development.

Checkout Plus Customizations

Checkout Plus Customizations

by
Plus Apps
No reviews
4.9
(
104
)
Starts at $29/mo
Key features of the app:

Checkout Plus Customizations helps Shopify merchants customize checkout, thank-you, order status, and customer account pages with upsells, trust badges, reviews, surveys, gift messages, and custom rules. It is a good fit for stores that want more control over the post-checkout experience while also adding revenue-focused blocks.

  • Thank You & Order Status Customizations: Add custom content, product offers, surveys, reviews, and branded blocks after checkout.
  • Checkout Trust & Upsell Blocks: Show upsells, trust badges, UGC, reviews, gift messages, delivery instructions, and custom checkout messages.
  • Rules & Validations: Create payment, shipping, order limit, and checkout customization rules based on store conditions.

Pricing: Free for development and staging stores. Paid plans start at $29/month with a 7-day free trial. Checkout upsells are available on the Advanced plan at $89/month.

Qikify Checkout Customizer

Qikify Checkout Customizer

by
Qikify Plus
No reviews
4.8
(
71
)
Key features of the app:

Qikify Checkout Customizer helps Shopify merchants personalize checkout with custom fields, checkout blocks, discounts, add-ons, upsells, validation rules, and post-purchase extensions. It is a strong fit for stores that want more control over checkout content while also improving AOV with targeted offers.

  • Checkout Upsells & Add-ons: Add cross-sells, upsells, product offers, add-ons, and Shopify discount listings directly in the checkout flow.
  • Custom Fields & Blocks: Create dynamic checkout fields, custom content blocks, widgets, and branded checkout sections.
  • Rules & Validation: Set checkout rules to validate orders, block risky checkouts, customize payment or delivery options, and support B2B checkout needs.

Pricing: Free plan available for eligible stores. Checkout Premium starts at $99/month with a 14-day free trial and includes custom fields, product offers, add-ons, extra widgets, prioritized support, and custom feature requests.

How to Choose the Right Checkout Upsell App

Checkout upsells can be one of the most effective ways to increase average order value because they appear at the point where the customer is already ready to buy. The right app should help you show relevant, complementary offers without making the checkout experience feel crowded or distracting.

The first thing to consider is your Shopify plan. If you are on Shopify Plus, you can use apps that add upsell blocks directly inside checkout. If you are not on Shopify Plus, checkout page customization options are more limited, so cart upsells, post-purchase upsells, thank you page upsells, or order status page recommendations may be a better fit.

The second thing to consider is pricing. Some checkout upsell apps charge based on order volume or upsell revenue, which can make costs harder to predict as your store scales. For high-volume stores, predictable pricing can make a meaningful difference to your margins.

Our recommendation is Oak Checkout Upsell & Post Purchase if you want a checkout upsell app that also supports post-purchase upsells and comes with flat pricing plans. It gives merchants a way to increase AOV without worrying about app costs rising with every extra order or upsell generated.

If you are still exploring other upsell placements, you can also check out our guide to the best post-purchase upsell apps for Shopify.

We know that choosing the right app can be daunting. These are the best apps we found during our research, and we honestly hope one of them is the right one for your store.

If you think there's an excellent app worthy of this list, drop an email to our team at marketing@delight(dot)chat. Until then, happy growing!

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