Web Application Development ServicesCustom web apps that scale.
Dashboards, internal tools, and full platforms, built in React and Next.js with the testing and architecture to grow with you.
By Parish Khan, senior developer since 2013
Updated
- Starting price
- $5,000
- Typical project
- $13,000 to $16,250
- Typical timeline
- 11 to 14 weeks
What Web App Development involves
A web application is software that lives in the browser: dashboards, admin tools, portals, and platforms with real logic, data, and users. Unlike a marketing site, it needs solid state management, an API layer, auth, and an architecture that stays maintainable as features pile up.
I build web apps that are fast, accessible, and tested, from the first screen to production. I scaled the frontend of Artlist and Artgrid to serve millions, so I know how to keep a growing app fast and clean.
What you actually get
Tested, not hoped
Features ship with the tests that keep them working as the app grows.
Reusable by design
A component system so the tenth screen is as clean as the first.
Fast and accessible
Quick to load, keyboard-friendly, and usable by everyone.
Estimate your web app development cost
Answer three questions and pick any extras. You get a price range and timeline instantly, and can send it straight to me for a fixed quote.
Your estimate
About 5 to 7 weeks
A ballpark to plan with, not a quote. Your answers go along with the brief, so the fixed quote comes back faster.
Or skip the quote
Build it on the Build plan at $2,490/month instead. This estimate equals about 2 months of a plan, and the plan keeps going after launch. Pause anytime.
How the subscription works
Web App Development cost breakdown
What web app development typically costs at three levels of scope. Every project still gets its own fixed quote.
| Scope | Cost | Timeline | What it looks like |
|---|---|---|---|
| Starter | $5,000 to $6,250 | 5 to 7 weeks |
|
| Typical | $13,000 to $16,250 | 11 to 14 weeks |
|
| Advanced | $31,000 to $38,750 | 20 to 26 weeks |
|
Starter
$5,000 to $6,250
5 to 7 weeks
- Up to 5 screens
- Simple records in one database
- None
Typical
$13,000 to $16,250
11 to 14 weeks
- 6 to 15 screens
- Search, file uploads, complex relations
- One or two (payments, email, maps)
Advanced
$31,000 to $38,750
20 to 26 weeks
- 16 or more
- Real-time collaboration or heavy processing
- Several, or a legacy system
- All add-ons
What drives the cost
The number of screens
Screen count is a good proxy for scope: each one has its own data, states, and edge cases to build and test.
- Up to 5 screensBase
- 6 to 15 screens+$4,000
- 16 or more+$9,000
Data complexity
Simple create-read-update screens are quick. Search, uploads, real-time sync, and background processing need more infrastructure.
- Simple records in one databaseBase
- Search, file uploads, complex relations+$2,500
- Real-time collaboration or heavy processing+$5,500
Third-party integrations
Each third-party service adds setup, error handling, and testing around its limits.
- NoneBase
- One or two (payments, email, maps)+$1,500
- Several, or a legacy system+$4,000
A good fit if
- Teams replacing a slow or fragile internal tool
- Businesses that need a real application, not a template
- Founders building a platform with genuine logic and data
What is included
- Product and technical scoping
- Data model, API layer, and auth
- Responsive, accessible UI from a component system
- Automated tests and CI/CD
- Edge deployment and monitoring
- Handover documentation
How it runs
No surprises and no black box. You see a live URL from week one.
- 1
Scope
What the app must do, and what it must not do yet.
- 2
Architect
Data, API, and auth mapped before building.
- 3
Build
Weekly demos on a live URL.
- 4
Ship
Tested, deployed, and handed over with docs.
Typically built with
React
Next.js
TypeScript
Tailwind CSS
Supabase
Cloudflare Workers
Proof, not promises
Two ways to get Web App Development.
As a fixed-price project with a clear finish line, or as part of a monthly subscription where you add requests and never wait for a quote.
Monthly subscription
A senior developer on call for one flat price. Add unlimited requests, I ship them one by one. The price never moves while the work keeps coming.
- No quotes, ever
- Unlimited requests
- 1 to 2 day turnaround
- Pause or cancel anytime
- Shared request board
- You own all the code
from$990/month
See plansFixed-price project
One defined build with a clear finish line. You get a written scope, a timeline, and one number before any work starts.
- Fixed quote in one business day
- Milestone payments
- Launch, handover, and support window
from$1,500
Start a projectWeb App Development FAQ
How much does web app development cost?
Web App Development starts at $5,000. A typical mid-sized project runs between $13,000 and $16,250, and an advanced build between $31,000 and $38,750. You always get a fixed quote before work starts, and the cost estimator on this page gives you a ballpark in under a minute.
How long does web app development take?
A starter project takes about 5 to 7 weeks, a typical one 11 to 14 weeks, and an advanced one 20 to 26 weeks. You see a live URL from the first week, so progress is visible the whole way.
What affects the cost of web app development?
Three things move the price most: the number of screens, data complexity, and third-party integrations. Optional extras such as roles and permissions or admin dashboard add to the total.
Do you work on existing apps?
Often. I can audit what you have, fix the architecture, and build on top rather than starting over when that is the right call.
Can you do the backend too?
Yes. I build full-stack: APIs, databases, and infra, not just the frontend.
What happens after launch?
Every build includes a support window, with an optional retainer for ongoing work.
Often paired with
Need a web app?
Tell me what it should do. I will reply with a clear scope and a fixed quote.
Prefer one fixed price for one defined build? Start a project
You work with me directly, on a monthly plan or a fixed-price project. No agency layer, one person accountable for the build.