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Most Shopify app development projects take 6 to 16 weeks from kickoff to a live App Store listing. A narrow custom app built for one merchant can land in 4. A public app with billing, onboarding and a listing page rarely finishes in under 10.
That spread is wide for a reason. Shopify app development hours shrink when you add developers. Approval cycles, review queues and missing brand assets do not shrink at all, and they own more of the calendar than most quotes admit.
Shopify app development timelines by app type
Three shapes of project cover almost everything a Shopify app development agency takes on.
- Custom Shopify app development for a single store, 3 to 6 weeks. One job, a thin interface, no public listing and no review queue, so the calendar stays close to the build estimate. Older documentation still calls these private apps.
- A public app with an App Store listing, 8 to 16 weeks. Billing, merchant onboarding, support docs, listing content and an approval process that can send you back.
- A deep integration with an ERP, warehouse system or subscription stack, 4 to 6 months. Most of that time goes to systems that are not Shopify.
Each range assumes a scoped brief and one decision maker on the client side. Both assumptions break more often than they hold.
Build time and launch time are two different numbers
Ask two agencies for a Shopify app development quote and you will often get two very different answers. Usually one is pricing build time and the other is pricing launch time.
Build time counts the days developers spend writing and testing code. Launch time counts everything from signed brief to the moment a merchant can install the app.
Launch time carries the rest of it. Scope questions, design sign off, a review queue nobody controls, and the listing assets that have no owner.
So ask for both numbers separately, and ask how many weeks each agency has set aside for review and revisions. The gap between the two numbers tells you how carefully they built the estimate.
Where the weeks go in Shopify app development
The phases below add up to roughly 5 to 14 weeks of Shopify app development work. Review sits on top of that, which is how a build that sounds like eight weeks becomes a launch that lands at twelve.
Discovery and scoping, 1 to 2 weeks
Discovery sets the rest of the schedule. The team maps the merchant problem, the data the app needs from Shopify, the access scopes it will request, and what happens when a shop uninstalls.
Skipping this phase does not save two weeks. It moves them to the end of the project, where changes cost far more to make.
Design and build, 3 to 10 weeks
Most teams start from the Shopify CLI and the Remix app template, and an embedded app renders inside the Shopify admin through App Bridge. Admin screens follow the Polaris design system, so a good share of the interface work is assembly rather than invention.
The custom effort sits in the logic. Queries against the GraphQL Admin API, webhooks, background jobs, rate limits and the edge cases nobody demoed. Shopify Functions or checkout extensibility add time again, since those pieces carry their own rules.
Billing usually takes longer than clients expect. Charges for App Store apps must run through Shopify’s own billing system, and the team has to test that flow on a development store before submission. OAuth, access scopes and the mandatory compliance webhooks for customer data sit in the same block of work.
QA on a development store, 1 to 2 weeks
Shopify app development does not end at feature complete. The team tests every build on a development store first, where performance counts as much as function.
For apps that touch the storefront, Shopify compares Lighthouse scores before and after install. A heavy script shows up quickly, and fixing one late costs a week nobody planned for. Requests for protected customer data get their own scrutiny, so ask for the narrowest scopes the app can work with.
App review is a queue, not a step
Shopify does not publish a review time for its app store approval process, and that absence is the honest answer here. Its documentation describes statuses instead, tracked in your Partner Dashboard: Draft, Submitted, Reviewed and Published. A Paused status covers submissions that fail the core checks before a reviewer even opens them.
Developers posting in Shopify’s community forums often describe around two weeks, and plenty of cases run three weeks or longer once a reviewer asks for changes. Treat that as a rough signal rather than a commitment. People tend to post when a review stalls and stay quiet when it goes smoothly.
Each round trip costs days rather than hours. Two rejections can therefore add a month to a launch date that looked fixed on the plan.
So book the review window as its own block on the schedule. Never promise a marketing date that quietly assumes approval on the first attempt.
What happens after the app is live
The queue is a launch problem rather than a permanent one. Guidance in Shopify’s developer community indicates that updates to a published app can ship without going back through review, provided the app still meets App Store requirements.
That changes how you should scope version one. Everything you cut to reach submission can go out the following month without waiting in line again.
Publishing is also not the last quality bar. Shopify runs a higher standard called Built for Shopify, which apps can work toward after launch. It affects how the App Store surfaces them.
The listing assets that sit quietly on the critical path
Here is the part that catches teams out. No app reaches review without its listing, and the listing is a branding job rather than a development one. Most Shopify app development plans still treat it as a task for the final two weeks.
So yes, the logo has to be finished before you submit. Shopify asks for an app icon at exactly 1200 by 1200 pixels, in JPEG or PNG, with padding so the mark never touches the edges and no transparent background. Text, screenshots and Shopify trademarks are all out.
The app name allows 30 characters and the tagline 62. Feature images run at 1600 by 900. Shopify has also tightened its rules on listing images that amount to a logo on a background, so check the current requirements before a designer starts.
A mark drawn for a website header rarely survives all that, so schedule the logo design work in week one rather than week ten.
The listing also points outward. A public app needs a working app URL, a privacy policy and support documentation a merchant can actually follow. All of that is web work, and it lands on the same deadline as the code.
What pushes Shopify app development past the estimate
Shopify app development slips for reasons that have little to do with code. The real causes are boring, repeatable and mostly avoidable.
Approvals sit with someone who is travelling. A staging store or a third party API key takes two weeks to arrive. A new feature appears after design sign off. The icon lands in submission week and fails the size rules.
[CONFIRM: the single most common cause of delay on your own Shopify projects, and roughly how many weeks it adds. One specific example makes this section yours rather than generic.]
Hiring faster developers solves none of them.
The fastest route is sometimes not an app at all
Before you commission anything, check what the job actually is. A fair share of briefs that arrive as app requests turn out to be storefront work.
Custom bundles, a landing page template, a product page that behaves one way for retail buyers and another for wholesale. Liquid theme customisation, metafields and metaobjects, and Shopify Flow automations cover a lot of that in days rather than months, with no review queue attached.
An app earns its cost when the logic has to live outside the theme, run on a schedule, or serve more than one store. Everywhere else, store development gets you there sooner and cheaper. A Shopify app development team worth hiring will tell you which one you are looking at before it quotes.
[CONFIRM: an example where you talked a client out of an app and solved the problem in the store instead, with the time or cost difference.]
A Shopify app development schedule you can plan around
Adding developers compresses the build, up to a point. Review, client approvals and listing assets do not compress at all. That is why a rushed Shopify app development schedule slips at the end rather than the start.
Start with the agency’s build estimate. Add two weeks for review, another two for a possible second round, and one more for listing assets if nobody has started them yet.
Then set two dates instead of one. A submission date the team controls, and a launch date that depends on Shopify. Marketing plans against the second date, never the first.
If speed matters more than reach, there is a shorter route. Build a narrow version for a handful of merchants first, prove the idea works, then invest in the public listing. Shopify app development goes faster when the review queue stays out of the way while the product is still changing.
An app that ships in 12 weeks with a clean listing beats one rushed to submission at 8 and stuck in review until week 14.
Want to hire a Shopify app developer?
Shopify app development is our core work. Our developers build custom apps for single stores and public apps that go through App Store review, and they handle the listing, the submission and the back and forth with reviewers alongside you. We will also say so when the job does not need an app at all. Tell us what the app has to do and we will come back with a build estimate and a launch date, separately. [CONFIRM: how many Shopify apps the team has shipped, and what a typical engagement includes]
