We work as a Shopify development company for mid-size and large brands: designing the store, building its theme, checkout and apps, and connecting it to the ERP. Before any of that, we check every customization against the store’s plan and Shopify’s supported extension points.
Reviewed by Mayursinh Jadeja, Founder · Last updated October 16, 2026
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A Shopify development company designs, builds and maintains stores on Shopify: the theme, the apps, the checkout rules and the connections to the systems behind the store. Shopify hosts the store and decides where custom code may run, so each piece has to sit where the platform supports it.
Shopify has moved those places before. The checkout.liquid file stopped working on the Information, Shipping and Payment steps from August 13, 2024, and on the Thank you and Order status pages on August 28, 2025. Shopify Scripts stopped running on June 30, 2026. Work built on either had to move to checkout extensibility, Shopify Functions or an app.
At Redlio Labs, our Shopify development starts from that map. We check the store’s plan, its apps and every customization against Shopify’s supported extension points, then build the theme, the checkout and the integrations where Shopify maintains them. What Shopify cannot hold, we build beside the store as custom web development.
We offer six kinds of Shopify work. A new store usually combines the first three. A store that has run for years usually needs the checkout work, the integrations or the move.
“Redlio Labs successfully delivered the project within schedule; they met all of our requirements. Their quality designs and in-depth knowledge of technology were key elements of their work.”
Verified review on Clutch1 / 4
Half an hour on what the store runs today and what it has to do next, with the engineers who would build the store. We answer within 12 hours, put an NDA in place before anyone talks, and say plainly when a bought theme is the better answer.
Mayursinh JadejaFounder
The plan decides how much of a Shopify build can be custom. The plans differ most in the checkout, the backend logic and the API, so we read the store’s plan against Shopify’s documentation before we scope.
| Custom work | Basic, Grow and Advanced | Shopify Plus |
|---|---|---|
| Theme and pages | Online Store 2.0 themes, with sections edited in the theme editor | The same |
| App features in the theme | Theme app extensions, which add app blocks without editing theme code | The same |
| Checkout steps | Branding and settings in the checkout editor | Custom checkout UI extensions on the information, shipping and payment steps |
| Discount, delivery and payment rules | Public App Store apps that contain Shopify Functions | Custom apps with Shopify Functions, written for the store |
| Admin API throughput | 100 points a second, or 200 on Advanced | 1,000 points a second |
We settle the plan before the build, not after it. Where only Plus covers what the store needs, we say so on the first call. Sources: Shopify’s documentation on checkout UI extensions, Shopify Functions and API rate limits, read October 16, 2026.
Build routes
We recommend the lightest route that holds what the store has to do. Each route further down gives more control and leaves more of the later changes with a developer.
Our Shopify store development case study shows one store we both designed and developed for a maker of sim racing cockpits: over 18 web pages, plus over 20 screens designed for phones.
Each of these is a platform rule or a decision that is quick to settle in a workshop and slow to undo after launch. We answer all eight in writing before design starts, and we advise asking any Shopify developer for the same.
Every item links the Shopify documentation it rests on, as read on October 16, 2026. We recheck each rule at the start of a build, because Shopify changes them.
Interfaces designed by our teamSee the case studies
Three cases where we advise a bought theme, a settled plan or a different platform:
Shopify development is the right choice where the way of selling fits Shopify’s model and the custom work fits its extension points.
Step 1 of 5
We map your workflows, systems, and constraints with the people who use them every day, before anything is scoped. For Shopify: we list the plan, the apps and every customization the store runs, and mark each one against Shopify’s extension points.
Discovery
Step 2 of 5
We write a scope, a timeline, and a price for that scope. Architecture decisions are made and documented before code starts. We decide the plan, the theme route and where each customization will live before we price the build.
Scope and plan
Step 3 of 5
Senior engineers deliver in planned stages, with working software demonstrated at every step, not a reveal at the end. We build on a development store your team reviews at each stage, with apps added through app blocks.
Build in stages
Step 4 of 5
Data migration, training, and a production cutover planned around your operations and your calendar, not ours. We redirect every old URL, check the tracking and place test orders through the checkout before the switch.
Launch
Step 5 of 5
The team that built your system stays on it: monitoring, support, and the next improvements on one roadmap. We follow Shopify’s changelog for the APIs and extensions the store uses, and plan each change before its deadline.
Run and improve
Twelve steps from the baseline before design to the weeks after launch, told in the order the work happens, with the redirect, speed and accessibility rules quoted at source and one list to tick at the end.
Mayursinh Jadeja
Clutch’s 2026 average for a web design project, and the lines a mid-size organization adds to it one at a time: templates, content, redirects, integrations, review rounds, standards and the years after launch.
Mayursinh Jadeja
What one client who interviewed fifteen vendors chose on, why the usual checklist could not separate them, the three tests that can, and the eight questions to send every vendor in writing.
Mayursinh Jadeja
If something here does not answer it, ask the founder directly.
Talk to the people who do the work
A 30 minute scoping call with the team that would take the project on. We reply within 12 hours.
Prefer email?info@redliolabs.com
A Shopify development company designs, builds and maintains online stores on Shopify: the theme, the apps, the checkout customizations and the connections to the business’s other systems. Because Shopify hosts the store, that work happens inside the platform’s extension points and the limits of the store’s plan. We start every build by mapping both.
Shopify website development includes the theme and its templates, the apps the store runs, the checkout, the integrations and any move from an old platform. We scope all five against the plan before design. The sim racing store we designed and developed is one example: more than 18 pages, plus over 20 phone screens.
Our price for Shopify website development comes from the written scope, so we give none until that scope exists. The theme route, the number of custom templates, the apps and their subscriptions, the integrations and the plan move the price most. Our guide to website redesign cost explains how to compare quotes that price the same scope.
We recommend Shopify Plus only when the store needs what only Plus allows: custom checkout steps, custom apps with Shopify Functions, or more Admin API throughput. Plus allows 1,000 points a second against 100 on standard plans, by Shopify’s rate limit table. Many stores need none of these, and Shopify B2B is also available on Basic, Grow and Advanced.
We build stores on Shopify Plus as well as on the standard plans, and we do not hold a Shopify Plus Partner badge. What we bring to a Plus build is the check that each customization belongs in a checkout extension, a Function or an app, before anyone writes it.
Yes. Most clients hire us for a scoped Shopify build, and teams that need a developer working inside their own process take one through our IT staff augmentation model, on your standards and your hours.
Shopify store design settles the layouts, type, color and phone screens a shopper sees; Shopify store development builds them into a working theme, with the apps and checkout behind it. We do both in one team. For design on its own, our jewelry, perfume and eyewear store designs show the work, with no client result claimed.
Shopify has retired both checkout.liquid and Shopify Scripts. checkout.liquid stopped working on the Information, Shipping and Payment steps from August 13, 2024, and on the Thank you and Order status pages on August 28, 2025. Scripts stopped running on June 30, 2026. We rebuild that work as checkout UI extensions, Functions or an app, to suit the plan.
Yes, we move stores to Shopify from the platform in use, with their products, customers, orders and URLs. We map every old URL to its new one before launch and check the tracking through the switch, so search engines and shoppers find each page. Our website redesign checklist lists what a move must not lose.
We advise that the business owns the store, its owner account, the app subscriptions and the domain, with code ownership written into the contract. Shopify lets an agency work as a collaborator, and it does not allow store ownership to pass to one. We work through collaborator access, so the store stays in the business’s name.
We start with the store as it runs today: the plan, the apps and every customization. In 30 minutes, the engineers who would build it give a straight answer on what Shopify allows and on fit. Expect our answer inside 12 hours, with an NDA in place before the call.
Mayursinh Jadeja
Founder, Redlio Labs
