Timeline

How long does it take to build an app?

Most custom mobile apps we build take 3–9 months from idea to launch. That is not a slogan — it is the range we publish because discovery, design, engineering, device QA, and store review all take calendar time. A small MVP with a frozen feature set can ship faster. A product with hardware, health workflows, or many roles sits toward the long end.

Get an estimate App development cost

Clock and planning materials for an app build timeline — Photo by Brett Jordan on Pexels

The months are not padding. They are the work.

Most custom mobile apps we build take 3–9 months from idea to launch. That is not a slogan. Discovery, design, engineering, device QA, and store review all take calendar time. How long to build an app is the question founders ask when a slide already has a date on it.

A focused MVP can sit toward the short end when the cut is real — that conversation is MVP development. Money and levers live on app development cost. The studio is in Sarajevo. US, UK, and EU clients work in English, with overlap hours so you are not waiting overnight for every answer. A written range comes back within 24 hours of a brief via the online estimate.

Discovery is not optional padding

Week one is not Xcode. We freeze the slice, map screens, and pick native versus Flutter versus React Native after we see the features. Then design, then vertical slices you can tap, then QA on phones, then App Store and Google Play. Review cycles are not “a Friday.” If you skip discovery you do not save a month — you donate it to rework. A clickable prototype in a month is sometimes possible. A store-ready product with accounts, QA, and listings almost never is. We will tell you if your date is a prototype date or a launch date.

Hardware adds calendar. Bluetooth scales and measuring tools need protocol time — Koliko and WoodMeter were not a weekend integration. Health workflows add calendar. Many roles add calendar. Unfrozen scope, late design changes, and store-review surprises are how six weeks become six months. We attack those in discovery so they do not show up in month five. One squad for two stores (Flutter or React Native) often beats two native teams on calendar. Native still wins when the OS experience is the product.

Founders dating a launch date, operators replacing a paper process, product teams who will not accept six weeks for a nine-month app: that is who asks. Studio in Sarajevo. US, UK, and EU clients in English, overlap hours so you are not waiting overnight. We would rather lose a deal than win it with a fantasy calendar. Send what must ship. We return a range and the cut that would make an earlier Friday true.

A timeline you can paste into a deck — then we tailor it

Phase	What happens
Estimate · 24 hours	Written scope and range. What would have to be cut to hit an earlier date. Free. Not a launch promise on the first call.
Discovery + UX · 2–6 weeks	Frozen MVP, wires, stack choice. This is where hardware and health workflows show up as calendar, not as a surprise in month five.
Build + QA · ~3 months (MVP) or 6–9 months (full)	Iterations on real devices. Accounts, notifications, offline, payments if you take them. Typical studio band remains 3–9 months idea to launch.
Store launch · 1–3 weeks in the plan	Listings, privacy labels, signing, review. We put this on the critical path. We do not treat it as a weekend.

What actually stretches the calendar

Unfrozen scope

New roles in week twelve. “MVP plus everything” is a full product. We write down what is out of v0.

Late design changes

Rework after engineering has started is how six weeks become six months. Copy and flows freeze with the slice.

Undocumented hardware

Bluetooth scales and measuring tools need protocol time. Koliko and WoodMeter were not a weekend integration.

Store review surprises

Health claims, privacy copy, screenshots. We plan them so they do not appear as a blocked launch.

Two native squads

Flutter or React Native can shorten calendar when one team ships both stores. Native still wins when the OS is the product.

No decision-maker

Async silence is calendar. You need someone on the calls who can cut.

We would rather lose a deal than win it with a fantasy date

A clickable prototype in a month is sometimes possible. A store-ready product with accounts, QA, and listings almost never is. We will tell you if your date is a prototype date or a launch date. Custom mobile app development is the delivery page; this one is the calendar honesty.

Hardware sits toward the long end. Health workflows sit toward the long end. Many roles sit toward the long end. A grocery comparison search in one market, or a QR menu guests can open, can sit toward the short end when the job is sharp. Send the brief. We come back with a range and the cut that would make an earlier date true.

How we turn your date into a plan

01
You send what must ship
Stores, roles, hardware, payments. A paragraph is enough to start.
02
We return a range in 24 hours
And what would have to leave v0 to hit an earlier Friday. That document is the timeline.
03
Discovery locks the slice
Then design and build on devices. Then stores. Then v1.1 if the slice works.

Frequently asked

At CodeLoop Studio, typical projects take 3–9 months from idea to launch. A focused MVP can be shorter; hardware, health, or multi-role products take longer.

A clickable prototype or a tiny experiment, sometimes. A store-ready product with accounts, QA, and listings almost never. We will tell you if your date is a prototype date or a launch date.

Unfrozen scope, late design changes, undocumented hardware, and store review surprises. We attack those in discovery so they do not show up in month five.

Free estimates at /online-estimate; we respond within 24 hours with a realistic timeline for your brief.

One squad for two stores often beats two native teams on calendar and cost. Native still wins when the OS experience is the product. We pick after we see the features.