Custom web app development, scoped to what you need
Admin dashboards, user accounts, databases, payments — real software built on Next.js and Postgres, quoted per project.
Ali Samadi Agency builds custom web applications for businesses that have outgrown a simple website: admin dashboards, customer portals with user accounts, booking and payment flows, and internal tools backed by a real database. Every app is built on the same production stack as our websites — Next.js, React, and Postgres — so it's fast, secure, and maintainable by any competent developer, not just us. We scope the project together first and quote it fairly before any work begins.
What you get with our custom web apps
Real software, small-team speed
Authentication, databases, dashboards, and payments — the same engineering patterns large products use, delivered without agency overhead.
Scoped before it's priced
We define what the app does, what it won't do, and what it costs — in writing — before development starts. No open-ended billing.
Built to hand over
Standard stack, clean code, your repository. If you grow into an in-house team someday, they inherit a codebase they'll recognize.
Starts as small as you need
A v1 with the core feature beats a year-long spec. We ship the essential version first, then grow it against real usage.
How we deliver custom web apps
Scoping call
We map what the app must do, who uses it, and what data it manages.
Written proposal
Fixed scope, timeline, and price. You know the total before we start.
Build in stages
You see working software early and often — not a big reveal at the end.
Launch & support
Deployed to production with monitoring; support and iteration scoped as you grow.
Common questions
How much does a custom web app cost?
It depends entirely on scope — a simple portal with accounts is a different project from a booking system with payments. That's why we scope first and quote a fixed price in writing before any work begins.
What can a custom web app include?
User accounts and authentication, admin dashboards, databases, file uploads, payments and subscriptions via Stripe, email notifications, and integrations with tools you already use.
What stack do you build on?
Next.js and React for the application, Postgres for data, and Stripe for payments — a standard, battle-tested stack that any professional developer can maintain after us.
Can you extend an app you didn't build?
Sometimes — it depends on the state of the existing code. We review it first and tell you honestly whether extending or rebuilding is the better investment.
Helpful resources
Related services
Ready to get started?
Simple, transparent pricing — and a real person on the other end. Simple sites ship in one day once your project is confirmed.