Custom app or public app?

A custom app serves your store only; a public app is listed on the Shopify App Store for other merchants. We build both.

Can a custom app replace several paid apps?

Often, yes - which can speed up your store and lower monthly fees.

What can Shopify Functions do that a regular app can't?

Run custom logic inside Shopify itself. Functions power tailored discounts, delivery options, payment method rules and cart validation. They run on Shopify's infrastructure, so the logic is fast at checkout and doesn't depend on an external server responding.

Who hosts and maintains a custom Shopify app?

It depends on what you prefer. We can host the app on your own cloud account or manage hosting for you. Either way, you own the code, and we can support updates when Shopify changes its APIs or app requirements.

How do you get a public app approved on the Shopify App Store?

By preparing for review from day one. We build to Shopify's app requirements on performance, security and billing, prepare the listing and handle reviewer feedback. Approval is Shopify's decision, but careful preparation keeps revision rounds to a minimum.

Will a custom app feel like part of the Shopify admin?

Yes. We build embedded apps with Polaris and App Bridge, so screens, buttons and navigation match the Shopify admin. Your team works in a familiar interface without switching between separate logins or tools.

How much does a Shopify store cost?

It depends on scope - theme work, custom features, integrations and content. Send the form and we’ll reply with a clear budget range, no obligation.

How long does a build take?

Every estimate includes a launch timeline mapped to your scope, with phased milestones.

Can you migrate my store to Shopify without losing SEO?

Yes. We migrate products, customers and orders, and set up redirects and metadata so rankings carry over.

My store is slow. Can you speed it up?

Usually. We audit your theme, apps and scripts, remove dead weight and optimize images and loading order.

Do you offer support after launch?

Yes - maintenance, new features and conversion optimization.

Custom Shopify App Development

Challenges & solutions

The Shopify problems we fix every week.

Pick the one that sounds like you. Here's how we solve it.

challenge

Solution

A fast, lean Shopify store

We rebuild bloated themes, remove apps you don’t need and optimize images, code and scripts.

Speed audit & Core Web Vitals
App and script clean-up
Image and code optimization
Technical SEO check

How we build

Our unique process for Shopify development.

A Shopify store that is fast, flexible and built for growth - delivered through a clear, five-stage process.

Step 1: Custom Shopify development

Stores tailored to your business requirements and customer journey.

Step 2: Scalable ecommerce

An architecture that grows alongside your business.

Step 3: User-friendly experiences

Intuitive storefronts that make it easy to browse, shop and convert.

Step 4: Third-party integrations

We connect your store with the tools and platforms you rely on.

Step 5: Ongoing support

Continuous optimization to keep performance at its best.

699+Ecommerce stores developed

+76%Avg. increase in store sales

Deep expertise

We have deep expertise in Shopify app development.

A custom app replaces workarounds and overlapping subscriptions with one tool built for your process. We build embedded apps with Polaris, theme and checkout extensions, and Shopify Functions for discounts and delivery logic - and we can take public apps through App Store review.

Custom & public appsPolaris admin UITheme app extensionsCheckout extensionsShopify FunctionsApp Store submission

Book a free 30-min call

Client testimonials

Trusted by thousands of happy customers.

Discover how our innovative solutions have transformed businesses, driving measurable success and lasting impact.

Verified review Review platform

01 / 05

Bytecode Technologies has developed a Shopify website for a motorcycle clothing company. The team is tasked with setting up the site's theme, creating custom code, and extracting code from another developer.

Kristen Staggs

CEO, Bohn Body Armor

Verified review Review platform

02 / 05

Bytecode Technologies continues to deliver features that boost the client's conversion rate and revenue. The team is highly proficient and agile from a workflow standpoint, and internal stakeholders praise the service provider's technical expertise and ability to take ownership of the project.

Patrik

CEO, Black Chili Messer

Verified review Review platform

03 / 05

Bytecode Technologies has delivered the website and code per the client's requirements. The team provides timely deliverables and has been responsive and communicative via email and messaging apps. Their knowledge of Shopify is impressive. They've fixed every issue that the client has presented.

Dustin Chaffin

CEO, Greatvacs

Verified review Review platform

04 / 05

“We have had an exceptional experience working with Bytecode Technologies. Their team of web developers is highly skilled and dedicated, delivering top-notch solutions that exceeded our expectations. They are responsive, professional, and truly understand the needs of their clients. Our project was completed on time and within budget, with excellent attention to detail and functionality. We highly recommend Bytecode Technologies for any web development needs. Thank you for your outstanding service!”

Zane Sabre

Founder of MSD , MAISONdeSABRÉ

Verified review Review platform

05 / 05

“Exceptional service and unmatched professionalism. From start to finish, every detail was handled with the utmost care, making the entire experience smooth and stress-free. The team’s expertise is evident in every interaction, and their dedication to delivering top-notch results truly sets them apart. I am thoroughly impressed and couldn’t be happier with the outcome. I highly recommend their services to anyone seeking excellence.”

Yassine Harraj

Head of Direct e-commerce , DELSEY PARIS

Why Bytecode

Why choose Bytecode?

Crafting exceptional experiences is at the core of what we do. Our team combines creativity, research and industry-leading practices to build products that are intuitive, engaging and results-driven.

Human-centered design

We prioritize your users at every stage of the process.

Innovative solutions

Modern, creative work tailored to your industry and goals.

Collaborative approach

We work closely with you to align every build with your vision.

End-to-end expertise

From idea to launch and beyond, one team covers it all.

Get started

Let's connect

Start growing your business with us.

Get in touch with our team to discover how we can help you achieve your goals with tailored solutions and expert support. Let's take your business to the next level, together.

Book a free 30-min call Get a quote

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