How Much Does a Custom Shopify App Cost in 2026?
“How much does a custom Shopify app cost?” has an honest answer: it depends on who builds it and what it has to do — and the build is only part of the bill. Here is how to think about the cost, what drives it up, and where an AI app builder fits.
The three ways to get a custom app
- An agency. A team scopes, designs, builds, tests and hands over the app. You pay for project management and reliability as well as code, and quotes are usually fixed-price per project.
- A freelance developer. Often cheaper than an agency for the same scope, billed hourly or per project. Quality and availability vary widely, and you take on more of the project management yourself.
- An AI Shopify app builder. You describe the app and a coding agent builds it. You pay a subscription instead of a project fee, and changes are a sentence rather than a change request.
Agency and freelance quotes for a genuinely custom app commonly run from the low thousands of dollars into five figures, before maintenance. The spread is wide because scope is: a read-only report and a two-way ERP integration are both “an app”.
What drives the price up
Whoever builds it, the same factors make an app more expensive:
- Where it runs. Admin tools are the simplest. Checkout, discount logic and storefront performance carry more rules and more testing.
- What it connects to. Every external system — an ERP, a 3PL, a CRM — adds integration work and failure cases.
- How much it writes. Reading data is cheap. Changing products, orders or prices in bulk needs care, permissions and undo paths.
- Who sees it. Anything customers see has to work on every device and look like your brand.
- How often it changes. The first version is rarely the last. Each round of changes is new cost with an agency or freelancer.
The costs most quotes leave out
The build is the visible part. The rest of the bill arrives later:
- Hosting. A Shopify app is a running service. Someone pays for the server and the database every month.
- Maintenance. Shopify versions its APIs and retires old ones on a published schedule. An app nobody maintains eventually stops working.
- Changes. Your business changes; the app has to follow.
- Monitoring. When the app stops, somebody has to notice and fix it.
When you compare options, compare the cost over a year, not the build fee.
What an AI-built app costs with AppFly
AppFly prices by plan, not by project. Hosting, the per-app database and deploys are included in the plan, and the coding agent runs on the AI account you already have:
- Free — Free: Try AppFly — build one app and see it running. 1 app, 1 running preview, Preview only — deploying to production needs a paid plan.
- Starter — $29 / month: For merchants shipping a couple of real apps. 3 apps, 2 running previews, 3 apps live in production.
- Pro — $99 / month: For agencies and merchants running a portfolio. 10 apps, 5 running previews, 10 apps live in production.
- Studio — $249 / month: For agencies running a shelf of live apps. 25 apps, 10 running previews, 25 apps live in production.
Paid plans have a free trial, and yearly billing takes 20% off. The full, current list is in the pricing section.
Changes cost a sentence, and App Doctor watches for a stopped container or a drifting configuration and offers the fix — which covers a large part of what maintenance usually means.
Which option is right for you
If the app is an internal tool, a storefront widget, a discount rule or an automation — the bulk of what merchants need — an AI builder is the cheapest and fastest way to get it, and you keep the code.
If the app is a large integration with an undocumented private system, or a product you plan to sell to other merchants, budget for a developer. Even then, an AI-built first version is a cheap way to prove the idea before you pay for the full build. The comparison of custom apps and App Store apps covers the other half of the decision.
Frequently asked questions
How much does it cost to build a Shopify app?
It depends on who builds it and what it does. Agency and freelance projects commonly cost from the low thousands of dollars upward, plus hosting and maintenance. With AppFly you can build and preview an app for free, and paid plans that deploy to production start at $29 a month.
Is hosting included in the price of a custom Shopify app?
Usually not in an agency or freelance quote — you pay for a server and database separately. In AppFly, hosting and a database per app are included in the plan.
What is the most expensive part of a custom Shopify app?
Over a year, it is often maintenance and changes rather than the first build. AppFly plans run from free to $249 a month and include changes by chat.