Custom Shopify apps
Custom Shopify apps, built on Gadget
Think Commerce builds custom Shopify apps for brands whose store needs to do something an existing app cannot. Gadget (gadget.dev) is our partner, and we develop our Shopify apps on Gadget’s platform. We have developed multiple apps for large Shopify Plus retailers. Tell us what you need the app to do.
What we build
Custom apps for your store
We build Shopify apps that fit how your team works, such as internal tools and customer portals, when no app in the Shopify App Store does the job.
Integrations with your other systems
We work with your third-party suppliers and build a stable integration between their systems and your store through the Shopify GraphQL APIs.
Checkout logic with Shopify Functions
Shopify Functions is one of our specialisms. We use it to build custom discount, delivery and payment logic at checkout.
How to work with us on an app
On the Partner retainer
Custom app development is included in our Partner retainer for multi-market and B2B brands, within the request queue. Smaller apps can run through the queue, one request at a time. Anything over about 10 days of work is quoted as a project.
As a quoted project
Larger custom apps are quoted as projects. Custom app development is not included in the Essentials or Growth retainers.
Part of a wider Shopify build
An app is often one part of a bigger piece of work. If you are building or replatforming, see how we approach Shopify Plus development, or browse all our Shopify services.
Questions
Frequently asked questions
When do we need a custom Shopify app rather than one from the App Store?
When no app in the Shopify App Store does the job, such as an internal tool or customer portal that fits how your team works. Tell us what the app needs to do, and we will tell you honestly whether a custom app is the right answer.
What platform do you build Shopify apps on?
Gadget. Gadget (gadget.dev) is our partner, and we develop our Shopify apps on its platform.
Have you built Shopify apps before?
Yes. We have developed multiple apps for large Shopify Plus retailers.
Can you connect Shopify to our ERP or other systems?
Yes. We work with your third-party suppliers and build a stable integration between their systems and your store through the Shopify GraphQL APIs. A new ERP, PIM or 3PL integration is a fixed-price project and costs from £5,000 per system, ex VAT.
Can you build custom logic at checkout?
Yes, with Shopify Functions, one of our specialisms. We use it to build custom discount, delivery and payment logic at checkout.
How is custom app development priced?
Larger custom apps are quoted as projects. On our Partner retainer, smaller apps can run through the request queue, and anything over about 10 days of work is quoted as a project. Custom apps are not included in the Essentials or Growth retainers.
Talk to us about an app
Tell us about the app you have in mind: what it needs to do, which systems it connects to and who will use it. We will tell you honestly whether a custom app is the right answer.

