★★★★★
“This Shopify app makes customizing payment/shipping methods and adding checkout upsells a breeze. The customer service is excellent too…”
Checkout Engine5.0 · 1 review on the App Store
Shopify Checkout Rules App for Payments, Shipping & Upsells
Checkout Engine is a Shopify checkout rules app built on Shopify Functions. Hide, rename and reorder payment and delivery methods, add custom discounts and show upsells in checkout.
Free sandbox plan15-day free trial on paid plansShopify Functions
★ 5.0App Store rating
1App Store review
Nov 2022Launched
$0Sandbox plan · paid from $7.99
Features
Everything you need to control checkout
Payment and delivery rules, custom discounts, upsells and branding in one app.
Payment method rules
Hide, rename and reorder payment methods by conditions, such as hiding cash on delivery above an order total.
Delivery method rules
Hide, rename and reorder shipping methods the same way, all running natively in Shopify checkout.
Custom discounts
Product, order, volume and shipping discounts built with Shopify Functions, including rule-based discounts.
Checkout upsells
Upsell and product recommendation blocks in checkout, plus a free-shipping progress bar. The upsell block is on Advanced.
Checkout branding
Change fonts and colors and add your logo and images to checkout, on Advanced.
Trust content
Add banners, testimonials, trust badges and contact details to checkout.
Analytics
Click-through, conversion and funnel data shows which offers work, on Advanced.
Built on Shopify Functions
Uses Shopify Functions and Checkout UI Extensions, the upgrade-safe way to customize checkout.
Chat & email support
Paid plans include chat and email support from the team that built the app.
Payment & shipping rules
Show the right methods for every order
Set conditions such as the order total, then hide, rename or reorder payment and shipping methods. For example, hide cash on delivery above a set amount.
Checkout upsells
Raise order value at the last step
Add product recommendations and a free-shipping progress bar to checkout, styled to match your store.
Get started
Live on your store in three steps
Set up from the app admin. Our team helps if you need custom checkout logic.
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01
Install the app
Install Checkout Engine from the Shopify App Store. Paid plans start with a 15-day free trial.
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02
Create your rules
Pick a payment or delivery method, set the conditions, and choose to hide, rename or reorder it.
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03
Add discounts and upsells
Set up product, order, volume or shipping discounts, then add upsell blocks on the Advanced plan.
Pricing
Start free. Upgrade when you grow.
Billed in USD by Shopify. Paid plans include a 15-day free trial.
Sandbox
$0/ month
All features
- Hide, rename & reorder payment methods
- Hide, rename & reorder shipping methods
- Checkout upsell blocks
- Rule-based discounts
- Product, order, volume & shipping discounts
Basic
$7.99/ month
15-day free trial
- Hide, rename & reorder payment methods
- Hide, rename & reorder shipping methods
- Product discounts
- Order discounts
- Volume discounts
- Shipping discounts
- Chat & email support
Advanced Adds upsells & branding
$27.99/ month
15-day free trial
- Everything in Basic
- Checkout upsell block
- Custom fields & blocks
- Modify line items
- Checkout branding
- Analytics
- Chat & email support
Plans and prices as listed on the Shopify App Store, 22 Sep 2026.
Shopify App Store
What merchants say about Checkout Engine
One review on the App Store listing so far.
Case study · App success story
How We Built Checkout Engine
How we used Shopify Functions and Checkout UI Extensions to build payment rules, custom discounts and checkout upsells.
Read the case study
FAQ
Checkout Engine questions
Is there a free plan?
Yes. The free Sandbox plan includes all features, including payment and shipping rules, checkout upsell blocks and rule-based discounts.
Can I hide cash on delivery?
Yes. Payment rules let you hide, rename or reorder payment methods based on conditions such as the order total. Shipping methods work the same way.
What discounts can I create?
Product, order, volume and shipping discounts, built with Shopify Functions, including rule-based discounts.
Which plan adds upsells and branding?
On paid plans, Advanced adds the checkout upsell block, checkout branding, custom fields and blocks, line item changes and analytics.
Is it built on Shopify Functions?
Yes. Checkout Engine is built on Shopify Functions and Checkout UI Extensions, the upgrade-safe way to customize checkout. For custom checkout logic beyond the app, see Shopify Plus development.
Tell us what you're building.
A 30-minute call with a Shopify developer, not a salesperson. You'll leave with a clear plan, whether or not you work with us.