Ask three development shops what your app will cost and you'll get three numbers that disagree by a factor of ten. Search for an answer and it gets worse — published figures run from about $15,000 to half a million, sometimes on the same page. Nobody is lying. They're answering different questions.
An app is custom construction. Asking what an app costs is like asking what a building costs — a garden shed and a dental office are both buildings. The scope is the price. So the useful skill isn't finding the one true number; it's knowing which parts of your idea are the expensive parts, and which can wait.
Why every honest answer is a range
Almost the entire cost of an app is labor: hours multiplied by a rate. The rate swings with who you hire and where they sit — a US agency and an overseas team charge very different money for the same hour. The hours swing with scope, and scope is exactly what hasn't been pinned down when you first ask. A shop that names a precise figure before asking you any questions isn't being helpful; it's guessing, and you'll pay for the guess later as change requests.
For calibration, here is what's actually published, as of September 2026: the most common project bracket on Clutch, the large agency directory, is $10,000–$49,999, and the average agency-built app comes in around $90,000. The 2026 industry pricing guides broadly agree on the shape — simple apps land in the low tens of thousands, mid-complexity builds run roughly $50,000–$120,000, and complex products go well into six figures. Treat those as a sanity check, not a quote.
The six drivers that move the number
When a developer prices your idea, these are what they're counting.
- Screens and flows. Every screen has to be designed, built and tested — then tested again on the other platform. An app with eight screens and one job is a different animal from one with forty screens and a settings page that scrolls forever. Counting your screens is the quickest rough estimate you can do yourself.
- Accounts and roles. The moment users sign in, you've bought registration, password reset, account deletion (the stores require it if you offer sign-up) and secure storage behind all of it. Separate roles — customer, staff, admin — multiply the work, because each role is effectively its own version of the app to design and test.
- Payments. Taking money means a payment provider, receipts, refunds and disputes. It also means store rules: digital goods generally have to go through Apple's and Google's own billing, with a commission, while physical goods and real-world services can use a normal card processor. Which side of that line you're on changes both the build and your margins.
- Integrations. Every outside system the app talks to — your booking system, QuickBooks, a shipping API — is a small project with its own documentation, quirks and failure modes. Three integrations can cost more than all your screens put together.
- Offline use. An app that must work in a basement or a dead zone has to store data on the phone and reconcile with the server later. Deciding who wins when two edits collide quietly doubles the engineering behind every feature it touches.
- Both platforms. iPhone and Android are separate stores, separate review queues and — if built natively — separate codebases. There's a shortcut, covered next.
The cross-platform shortcut, in one paragraph
Frameworks like React Native and Flutter build both apps from one codebase, and most business apps fit them fine. The saving is real but it isn't half, because the code was never the whole bill — design, testing on two platforms, store submissions and the server don't shrink. Expect a meaningful discount against two native builds, and expect a good shop to propose cross-platform by default unless your app leans hard on the hardware — games, heavy camera or sensor work — where native still earns its keep.
The costs the quote may not mention
- Store accounts. Apple's developer program runs $99 a year and Google Play registration is a one-time $25, as of September 2026. Small numbers, but open both accounts in your own name — if the relationship with your developer ever ends, you keep the app.
- The server. Most apps are a front end to a server that holds the data and enforces the rules. It has to be built, hosted and monitored, and the hosting bill arrives every month for the life of the app.
- Annual OS updates. Apple and Google each ship a major OS release every year. An app nobody maintains eventually looks wrong, then breaks, then risks being pulled from the stores.
- Year two. The common rule of thumb in 2026 industry guides is 15–20% of the original build cost per year for maintenance — bug fixes, OS updates, small improvements. A $60,000 build means planning on roughly $9,000–$12,000 a year to keep it healthy.
The version-one discipline that halves budgets
The biggest lever on price isn't the hourly rate — it's the feature list. Version one should do the one thing that proves the idea, completely, and nothing else. A booking app's first release is browse, book, pay, get a reminder. It is not chat, loyalty points, referral codes or an AI assistant. Cutting the screen count cuts the budget roughly with it, and you get something better than savings: real users showing you which postponed features they'd actually use, before you pay to build them.
Run the cheaper checks first, too. Off-the-shelf software may already cover the job — and if what you really need is to be found, contacted and booked, a good website does it for a fraction of an app's price, with nothing for anyone to install.
How to get a quote that means something
A number is only as good as the scope underneath it. Before you ask anyone for a price:
- Write down every screen you can picture and the paths through them, in plain words — "a customer picks a time slot, pays a deposit, gets a confirmation text." Concrete flows can be priced; "like Uber but for X" cannot.
- Name the roles and every outside system the app must talk to. These are the multipliers, so surface them early.
- Split the list into version one and later. A tightly scoped version one can be the difference between a five-figure quote and a six-figure one for the same idea.
- Ask what the number excludes. The server, store submission and the first year of updates are the usual gaps.
- Collect more than one bid against the same written scope, and make each bidder restate that scope in their own words — the restatement tells you who actually read it. Posting the project on a marketplace like Koadi is one way to gather competing bids on a single description.
If you'd rather hand the whole thing to one team
Koadi builds mobile apps for iOS and Android — designed, built, submitted to both stores, and maintained after launch — and every project starts with exactly the scoping conversation above. Post what you want to build, free; vetted, identity-verified developers pick it up, you set a fixed price or take bids, and payment sits in escrow until you approve the work. Most app work is remote by nature, and Koadi covers every US state that way, with on-site help through local technicians when a project needs hands in the room. Call (848) 266-6363 or email help@koaditech.com to talk it through first.