"How much will it cost to build our app?" is usually the first question a business owner asks, and the hardest one to get a straight answer to.
Quotes for what sounds like the same app can range from $5,000 to $500,000. That's not because developers are guessing. It's because "a web app" can mean a simple internal dashboard, or a marketplace with payments, two kinds of users and a dozen integrations.
The short answer, at the end of 2026:
- A first version (MVP) built by a US agency typically costs $25,000 to $80,000, according to published 2026 guides.
- A launch-ready product typically costs $50,000 to $150,000. Complex platforms run from $100,000 to $500,000 and more.
- At abZ Global, an internal tool costs $6,000 to $15,000, an MVP $10,000 to $40,000, and a full first version $50,000 to $150,000. Larger platforms are built and priced in phases.
I've been building software since 2010. I build and run my own AI product, SelfManager.ai, which has more than 350,000 lines of code in production, and I've been fractional CTO and lead developer for a private aviation company and an online marketplace. This article is how I explain web app costs to business owners before they commit to anything.
What Counts as a Web App
A website mostly shows information. A web app does work: people log in, enter data, pay, book, manage, approve. Some common examples:
- A customer portal where your clients see orders, documents or progress.
- A SaaS product that customers subscribe to.
- A marketplace that connects buyers and sellers, or hosts and guests.
- An internal tool that replaces spreadsheets for your team: a dashboard, a booking system, an operations tool.
The more of the work the app does, and the more kinds of people use it, the more it costs.
What Drives the Cost
Two apps with the same name can be very different projects. These are the things that move the price the most:
Users and roles
An app with one kind of user is simpler than one with customers, staff, admins and partners, each seeing different things. Every role adds screens, rules and testing.
Payments
Taking one-off payments is one thing. Subscriptions, refunds, invoices, payouts to sellers and taxes across countries are another.
Integrations
Every system the app has to talk to adds work: your CRM, accounting, email marketing, calendars, shipping, or another company's software. Some integrations take a day. Others take a large share of the budget.
Data and security
Personal data, health information, payments and business documents need careful handling: who can see what, how it's stored, what happens if something goes wrong. That care is part of the cost, and it's not the place to save money.
AI features
Search over your own data, drafting, summaries, assistants. AI features can make an app far more useful, and they add design, testing and running costs of their own.
Design
A clean, standard interface costs less than a fully custom design. For most first versions, clear and simple wins.
Who builds it
Freelancers usually cost less than agencies, and offshore teams less than US teams. What changes with the price is usually how much is included: planning, testing, security, documentation, and someone accountable when things go wrong.
Web App Prices at abZ Global
Our prices are published on our pricing page:
| What you're building | Price |
|---|---|
| A feature or a fix in an existing app | From $2,000 |
| Internal tool or dashboard | $6,000 – $15,000 |
| MVP: the first live version of a SaaS or marketplace | $10,000 – $40,000 |
| Full product, version 1: a SaaS or marketplace with payments, roles, admin and integrations | $50,000 – $150,000 |
| Platform: multi-sided, high-scale or regulated, built in phases | $150,000 – $500,000+ |
| Enterprise platform: several products or one large platform, with a dedicated team | $1,000,000+ |
| AI-built app to production: making a prototype built with AI tools secure, tested and maintainable | $10,000 – $40,000 |
| Taking over an unfinished build | Starts with a Technical Review, then priced phase by phase |
| Ongoing development after launch | Retainer, from $2,000 a month |
Larger products are built and priced in phases, so you never commit to the whole thing blind. Each phase ends with something working that you can see and use.
What the Market Charges
Published 2026 price guides put web app projects in these ranges:
| Type of project | Freelancer | Agency |
|---|---|---|
| Simple web app (login, data, basic dashboard) | $10,000 – $25,000 | $25,000 – $50,000 |
| MVP (core features only) | $10,000 – $40,000 | $25,000 – $80,000 |
| Launch-ready SaaS, version 1 | $25,000 – $80,000 | $50,000 – $150,000 |
| Complex or mature product | $50,000 – $150,000+ | $100,000 – $500,000+ |
Source: Project Cost Estimator, April 2026. A July 2026 guide from Parallel Loop puts a standard SaaS MVP at $30,000 to $60,000, and a marketplace MVP at $50,000 to $120,000 or more.
Two things to keep in mind. Most of these figures come from companies that sell development, so treat them as a guide, not a rule. And a quote far below these ranges usually means something is missing from it, not that someone found a cheaper way to do the same work.
"Can't We Just Build It With AI?"
In 2026, it's a fair question. AI tools can produce an app that looks finished, quickly and cheaply. For testing an idea, showing investors or learning what users want, that's genuinely useful.
The problems start when that prototype meets real customers. AI-built apps often fall short exactly where the risk is:
- Security: who can see whose data, and how easy it is to get in.
- Payments and money flows that have to be right every time.
- Data that has to survive mistakes, updates and growth.
- Code that someone, including the AI, can still change safely later.
We use AI coding agents every day: they write a large share of the code, and an experienced engineer directs them, reviews what they produce and makes the decisions. That combination is what makes good software faster and more affordable today. AI on its own, with nobody experienced reviewing it, is how prototypes end up in production with holes in them.
If you already have an AI-built prototype, taking it to production usually costs $10,000 to $40,000 with us, far less than starting over.
The Costs After Launch
The build is only part of the cost. Plan for these too:
- Hosting and servers. From very little for a small app to thousands a month at large scale.
- Third-party services. Email sending, payments, maps, storage, analytics, each with its own fees.
- AI usage. If the app uses AI, the provider bills you for usage. A good build estimates it in advance and sets limits.
- Updates and fixes. Security updates, browser changes, new features your customers ask for. One 2026 guide suggests budgeting another 15–25% on top of the build for maintenance, hosting and early improvements if the quote doesn't include them.
With us, ongoing development runs as a monthly retainer, from $2,000 a month.
How to Keep the Cost Under Control
- Start with the smallest version that does the job. An MVP with the one workflow that matters beats a big first version that tries to do everything.
- Build in phases. Each phase should end with something working, so you can stop, change direction or continue with real information.
- Own your code and your accounts. The code, the servers, the domain and the app store accounts should be in your name from day one.
- Get a senior opinion before you sign. A few of the right questions can save a lot of the wrong work. If you're comparing quotes, that's what our one decision service is for.
- Don't restart a half-finished app blindly. A Technical Review shows what can be kept, what must be fixed and what it will cost.
Warning Signs in a Quote
- A very low price with a vague scope. The missing work shows up later, as extra invoices.
- No mention of testing or security. If it isn't in the quote, it usually isn't in the work.
- The agency keeps the code or the accounts. You should own everything you pay for.
- One big price for a big product, with no phases. Large projects should be built in stages you can see and approve.
Frequently Asked Questions
How much does it cost to build a web app in 2026?
Published 2026 guides put an agency-built MVP at $25,000 to $80,000, a launch-ready product at $50,000 to $150,000, and complex platforms at $100,000 to $500,000 or more. At abZ Global, an MVP costs $10,000 to $40,000 and a full first version $50,000 to $150,000.
How much does an MVP cost?
Usually $10,000 to $80,000, depending on what it has to do and who builds it. With us, an MVP of a SaaS or marketplace costs $10,000 to $40,000.
Is it cheaper to build a web app with AI tools?
For a prototype, yes. For a product that handles real customers, payments or personal data, the AI-built version usually needs an experienced engineer to make it secure, tested and maintainable. With us, that typically costs $10,000 to $40,000.
What are the ongoing costs of a web app?
Hosting, third-party services, AI usage if the app uses AI, and ongoing updates and fixes. With us, ongoing development is a monthly retainer, from $2,000 a month.
Why do web app quotes vary so much?
Because they include different things. Compare quotes by what's in them: roles, payments, integrations, testing, security, design, and who owns the code. Not just by the total.
Do I own the code?
You should, always. At abZ Global, the code and the accounts are yours.
Can you take over an app another developer started?
Yes. We start with a Technical Review to see what's there, what can be kept and what it will cost, then price the rest phase by phase.
Find Out What Your App Would Cost
Every app is different, and the best way to get a real number is to describe yours. See how we build web apps, or tell us what you're building. You'll get useful questions and a proposed next step.