Shopify Custom App Development
Own the Features Your Store Depends On
Apps are great until one fails, gets pulled from the App Store, or runs code you never approved.
For the features on your path to revenue, a custom app means you own the code, you control when it changes, and nobody else has an off switch.
Book a call about your buildWhy Custom, and Why Now
For years the case for apps was cost. A custom build meant a big quote and a long wait, so the app nearly always won. AI-assisted development has changed that math. Features that once ran into hundreds of hours now take a fraction of that.
In October 2026, when a search app went down overnight and blanked a client's collection pages, we started rebuilding search, filters, list and grid views, badges and the client's own product rules natively as a backup. A few years ago that would have been a major project.
Hosted on the Same Network as Shopify
When a custom app needs a server, we host it on Cloudflare, the same network Shopify's storefronts run on. It's fast, it scales for Black Friday without planning, and there are no servers for you to maintain.
You get the full source code and the accounts it runs on.
Rent or Own: How We Decide With You
| Keep the app | Build it |
|---|---|
| Reviews, fraud screening, email and SMS platforms | Search, collection pages and filtering |
| Features that hold years of data or vendor expertise | Product options and pricing rules |
| Low-risk features off the purchase path | Anything on the cart or checkout path |
| Apps with a clear security record and export path | Thin layers over things Shopify already does natively |
Not sure which features to build first? Start with an App Risk Audit. It shows which apps your store depends on most and what breaks when they fail.
Why Netalico
Netalico is a Shopify Premier Partner and a Shopify Plus development agency. We build on Shopify every day, and we build on Cloudflare Workers too, so we know both sides of the stack your store runs on.
What Clients Say
Wes Van Boom | VP, Documotion Research Inc
Netalico has been doing maintenance and upgrades for our existing Magento website and customer portal to make our ordering process more efficient and solve its current issues. When they came in, we told them what our problems were and solved everything within a couple of months.
Chief Marketing Officer, Fitness Brand
Their experience with migration is something not all agencies have. A lot of agencies can do all sorts of development work, but e-commerce has a lot of nuances that are important to understand. They are skilled in what they do and we have a great rapport with Mark.
FAQ
Custom App Development: Frequently Asked Questions
What's the difference between a custom app and an App Store app?
A custom app is built for your store alone. It isn't listed on the App Store, can't be delisted, and you control every change.
Who maintains a custom app?
We can, on a support retainer, or your own team can. Either way you own the code.
Do I need Shopify Plus?
No for most custom apps and theme features. Yes for custom Shopify Functions and checkout extensions.
How long does a build take?
It depends on scope. A feature like a wishlist or native filtering is weeks, not months.
Tell Us About Your Build
Send your store URL and the feature you want to own.
Thanks! Want to talk sooner?
Pick a time with Bianca for a short intro call. We'll still reply to your message either way.
Book a Call About Your Build
Tell us which app or feature you want to replace and what it does for your store today. We'll tell you what a native build looks like.