How much does it cost to build a custom web application?
With Marwan Ayman, a landing page runs $600 to $1,500, a business website with a content system $1,500 to $4,000, an e-commerce store $3,000 to $10,000, and a custom business system or client portal $5,000 to $20,000 and up. Automation workflows start at $300. Every project is quoted at a fixed price after a written scope.
Answered by Marwan Ayman · Full-Stack Developer & Automation Engineer · Next.js · Node.js · n8n · Egypt (remote)
The short version
- Landing page
- $600 – $1,500
- Business website
- $1,500 – $4,000
- E-commerce store
- $3,000 – $10,000
- Custom system or portal
- $5,000 – $20,000+
- Automation workflow
- $300 – $2,500
- Maintenance retainer
- $250 – $1,500 per month
In more detail
What moves a quote within a range is rarely the number of screens. It is the number of integrations, the number of distinct user roles, and whether the data has to reconcile with a system you already run. Three roles cost more than three extra pages.
Rates vary by region for reasons that have nothing to do with code quality. A team in London or New York carries an office, a sales function and account management. An independent contractor in Cairo carries none of those, which is most of the difference in the invoice.
The estimate you can trust is the one that comes after a scope document, not before it. Any number given before someone has asked who uses the system and what it connects to is a guess dressed up as a quote.
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Start a project
A free thirty-minute call, then a written scope and a fixed price.