On the Shopify App StoreA Devsinc Product

Customise Shopify checkout without touching code.

Control which payment methods appear, auto-fill cities, validate fields before the order lands, and run conditional discounts at the final step. Eight modules, no developer, live in minutes.

4.5 ★Shopify App Store rating

8checkout modules
1,000+custom features shipped
20+markets served
The checkout problem

Shopify checkout is locked down. Your business is not.

Wrong payment methods in front of the wrong customers.

Cash on delivery showing where it should not. Your cheapest gateway buried at the bottom of the list.

Every extra field costs you an order.

Manual city entry, no validation, and address errors that only surface at fulfilment.

No room for your own rules.

Prepaid incentives, tiered discounts, and B2B logic that native checkout will not express.

Off-brand at the moment that matters most.

A carefully designed store ending in a generic final step.

The modules

Eight checkout modules, switched on from one dashboard.

01Payment ModifierModify payment step flows, add conditions, and adjust which methods are visible.
02Shipping ModifierTailor shipping options, show or hide rates, and prioritise preferred carriers, all without code.
03Advanced DiscountsTiered and conditional discounts that apply automatically at checkout.
04Upsell and Cross-SellTargeted product offers that raise AOV right before purchase.
05Auto City SelectorPrefill city fields by detecting customer location for a faster checkout.
06Custom ContentMessages, banners, and instructions that guide customers at the final step.
07Field ValidationField rules that prevent errors and reduce abandoned checkouts.
08Custom BrandingA checkout that matches your brand colours and assets.
Payment control

Decide exactly which payment methods each customer sees.

Hide or show

Control visibility of any payment method by customer rule or order condition.

Sort and reorder

Move preferred gateways to the top and reorder the rest.

Rename or translate

Rewrite payment method labels for clarity, or translate them per market.

Who it is for

Built for three kinds of merchant

High-COD markets

Pakistan, the Gulf, and Southeast Asia, where prepaid incentives and city-level logistics routing decide the margin.

Shopify Plus merchants

Full Checkout Extensibility access, conditional rules, and branding control.

Agencies and partners

Ship checkout customisation for clients without building or maintaining it.

Merchants

Merchants running Checkout Catalyst

Wordmarks shown, logo files needed

What merchants say about it

"The team responded from the first message and stayed patient with us. Every question came back with a clear solution."

Unze LondonOn support

"We can assign a different logistics provider per city now. That removed our manual sorting entirely."

eloOn city-based logistics

"Our one-page checkout migration needed a city list dropdown. The app delivered exactly that."

NishatOn one-page checkout
Pricing

Published pricing, billed through Shopify

Free trial on both paid plans

Essential

$7/month, billed annually
$80/year, or $10 billed monthly · save 33%Works on all Shopify plans
✓ Payment Modifier✓ Shipping Modifier✓ Advanced Discounts✓ Upsell and Cross-Sell
Start free trial on Essential
MOST CAPABLE

Professional

$49/month, billed annually
$560/year, or $59 billed monthly · save 21%Shopify Plus required
✓ Everything in Essential✓ Auto City Selector✓ Custom Content Blocks✓ Field Validation✓ Custom Branding
Start free trial on Professional

Custom

Talk to us

Scoped and quoted per checkout

Bespoke modules built for your checkout: B2B approval flows, ERP-driven pricing, market-specific compliance fields.

Scope a custom module

Trial length pending confirmation from the App Store listing. No number is published here yet.

Partner programmeEarn with every merchant you bring to Checkout Catalyst.

Refer merchants, earn recurring commission, and we onboard them alongside you. No exclusivity, no minimum volume.

Become an affiliate
Features

Custom checkout fields, validation, and content, without a developer.

01

Checkboxes and dropdowns.

Capture gift options, terms agreements, or delivery preferences without a theme edit.

02

Additional fields.

Collect VAT numbers, national ID, gate codes, or delivery instructions inside the checkout flow.

03

Automated field validation.

Enforce valid phone numbers, names, addresses, and postcodes before the order completes, so shipping errors never reach fulfilment.

04

Custom banners and messages.

Dynamic shipping alerts and promotional messages that build trust at the final step.

05

Auto-update city field.

Populate city and state the moment the customer enters a postcode.

Resources

See it running before you install

FAQs

Checkout questions merchants ask before installing

Still unsure? Open the demo store.
Open the demo store
Does Checkout Catalyst work on all Shopify plans?+
The Essential plan works on every Shopify plan and covers Payment Modifier, Shipping Modifier, Advanced Discounts, and Upsell and Cross-Sell. The Professional modules need Shopify Plus because Shopify only exposes those checkout extension points on Plus.
Do I need Shopify Plus to customise checkout?+
For payment and shipping logic, no. For anything that adds fields, banners, validation, or branding inside the checkout page you need Plus.
Will this affect Shopify's checkout compliance or PCI status?+
No. Checkout Catalyst runs entirely through Shopify's supported Checkout Extensibility APIs and Functions, so it never touches card data and never replaces Shopify's checkout.
Can I hide cash on delivery for specific products, cities, or order values?+
Yes, that is the single most used rule in the app. Payment Modifier can hide or show any method by cart value, product, customer tag, or shipping location.
How do I move my preferred payment gateway to the top of the list?+
Open Payment Modifier, drag the method into the position you want, and publish.
Does the app slow down checkout?+
Rules run as Shopify Functions on Shopify's own infrastructure rather than as client-side scripts, so there is no render-blocking asset added to your checkout.
Can I collect custom fields like VAT or national ID at checkout?+
Yes. Additional fields support text inputs, checkboxes, and dropdowns, each required or optional with validation rules.
What happens to my configuration if I change themes?+
Nothing. Configuration lives in the app and in Shopify's checkout settings, not in your theme files.
Do you build custom checkout modules?+
Yes. The Custom tier exists for merchants whose checkout logic does not fit the eight standard modules.

Fix the step where you lose the order.

Install Checkout Catalyst from the Shopify App Store and configure your first module in minutes. Free trial, no code, cancel any time.