“How much will it cost?” is the first question every client asks and the one most agencies dodge until the third meeting. Here’s the answer we give on the first call: it depends on scope, but not infinitely — and anyone who won’t give you a range is either inexperienced or setting you up for a surprise.
These are the ranges we see in practice, what pushes a project up or down within them, and how to keep the number from doubling halfway through.
Realistic Ranges by Scope
Focused MVP — $15k–40k. One core user flow done well: auth, the main feature, a simple admin view, payments if needed. A booking tool, a marketplace with one transaction type, an internal dashboard. Typically 6–10 weeks with a small senior team.
Full product — $40k–120k. Multiple user roles, real business logic, integrations with third-party services, an admin back office, and the polish that makes customers trust it. Most funded startups’ first real product lands here.
Platform — $120k and up. Multi-tenant architecture, complex permissions, high-volume data processing, mobile apps alongside web, compliance requirements. If someone quotes you $30k for this, the real price will arrive later — as change orders.
Two things about these ranges: they assume a senior team that ships weekly, and they include the unglamorous parts (deployment, monitoring, tests) that cheap quotes leave out and invoice later.
What Actually Drives the Price
Number of user roles. Every role multiplies screens, permissions, and test surface. “Customers and admins” is cheap. “Customers, vendors, moderators, regional managers, and auditors” is not.
Integrations. Each third-party API — payments, maps, SMS, your industry’s niche tool — adds build time plus the edge cases its documentation doesn’t mention. Budget a few thousand per meaningful integration.
Business logic complexity. A CRUD app is cheap. Pricing engines, matching algorithms, scheduling with conflicts, multi-step approval workflows — this is where hours go.
Design expectations. “Clean and functional” and “award-worthy custom illustration and motion” differ by weeks of work. Neither is wrong; know which you’re buying.
The state of your idea. A founder with wireframes and a validated flow gets a tighter quote than one with a paragraph and a competitor’s URL. Discovery work is real work — the question is whether it happens before the quote (honest) or during the build (expensive).
The Quotes That Double Mid-Project
The pattern is always the same: a low quote built on vague scope, followed by change orders for everything you assumed was included. Protect yourself:
- Demand a written scope before a price. What will be built, what won’t, and what’s explicitly out of scope. If the quote fits in a chat message, the dispute will fill a courtroom.
- Ask what’s not included. Deployment, monitoring, tests, app store fees, content entry, training — every exclusion is a future invoice.
- Weekly demos or walk away. If you see working software every week, a project can’t quietly go three months sideways. If a team resists showing work in progress, that tells you something.
- Fixed scope beats hourly for first engagements. Hourly billing with a team you haven’t worked with is a blank check. Fixed-scope with defined phases keeps everyone honest.
Where Not to Cut
Two places cheap builds get expensive later:
The deploy pipeline and tests. Skipping them saves maybe 10% upfront and costs it back monthly — every deploy becomes risky, every bug reaches production. We set up CI/CD and testing from week one because retrofitting it costs more.
Ownership. If the code, repo, and cloud account aren’t in your name, you don’t have a product — you have a dependency. This should be non-negotiable in any contract.
The Short Answer
A serious web app from a senior team starts around $15k for a genuinely focused MVP and scales with roles, integrations, and logic complexity. Anything dramatically cheaper is either a junior team, an offshore gamble, or a quote that grows later. Anything dramatically more expensive should come with a very clear explanation of why.
We build custom web applications with fixed-scope quotes and weekly deploys from week one — you see the product taking shape, not a timesheet. If you have a project in mind, book a free consultation and we’ll give you a real number, not a “let’s circle back.”