How Much Does It Cost to Build an App in 2025? A Founder's Honest Breakdown

The range you get when you search "how much does it cost to build an app" is almost comically wide: $5,000 to $500,000, depending on who you ask. That spread is not meaningless — it reflects real differences in quality, complexity, and who you hire. But it's also inflated by agencies who benefit from founders not knowing what things actually cost.

Here is an honest breakdown, based on what founders at the early stage actually need.

Three variables determine most of the price: scope (what the app actually does), platform (web, iOS, or both), and who builds it. A simple web app with sign-up, a paywall, and one core feature is a fundamentally different project from a two-sided marketplace with real-time chat and a mobile app on both platforms.

Most first-time founders overscope. The instinct to build everything at once — the full feature set, the polished onboarding, the admin dashboard — is understandable but expensive. A well-scoped MVP does one thing well. Everything else comes after.

Traditional software agencies bill by the hour across a team: a project manager, a designer, two developers, a QA engineer. That team has overhead. They also have sales targets, and early-stage founders without technical knowledge are an easy upsell.

For a first MVP, most agency quotes include far more than you need. They will propose custom design systems from scratch, three rounds of discovery workshops, and infrastructure that could serve a million users — for a product that hasn't yet served ten. The high end of agency quotes is rarely justified at the pre-revenue stage.

A strong freelance developer on a fixed scope is often the best value in the market. Rates vary widely by location and experience level. A senior developer in Western Europe or North America typically charges $80–$150/hour. In Eastern Europe or Latin America, $30–$70/hour for equivalent skill.

The risk is not price — it's reliability. Freelancers take on multiple clients, hit delays, and sometimes disappear entirely. Mitigate this by getting a fixed-price contract for a defined scope, checking references carefully, and keeping all code in your own repository from day one.

No-code tools are genuinely useful for simple products: a booking site, a content library with a paywall, a community forum. Costs are low and you can move fast. The limitation is that you are building on someone else's infrastructure. When the platform raises prices, changes their terms, or gets acquired, your product is affected. You don't own the code.

For a proof-of-concept or a pre-revenue experiment, no-code is a reasonable choice. For a product you plan to grow, the ceiling arrives sooner than most founders expect.

A fixed-price specialist — someone who takes one project at a time, scopes tightly, and delivers in a defined timeframe — sits in a different category from all of the above. The cost is predictable. The timeline is defined. And you own the output: the code, the repository, the hosting configuration.

Build with Kat prices a web MVP at $5,000, an iOS app at $8,000, and both together at $12,000 — delivered in three weeks. These prices reflect a deliberately constrained scope: one core feature, done properly. Not everything you eventually want, but everything you need to launch, validate, and start charging.

A focused MVP — the version that does one thing well, lets users pay for it, and is stable enough to share with real people — should cost between $5,000 and $20,000. If you're being quoted significantly more than that for a first version, the scope has probably expanded beyond what you need, or the team is larger than the project requires.

The most expensive apps are not always the best ones. The most valuable version one is the one that ships.