Custom Web Application Development
Bespoke Web Apps for SMEs
Looking for a custom web application that perfectly fits your business processes? AIFAIS develops bespoke web applications with AI integration: from customer portals and dashboards to internal tools and workflow apps. We build scalable, secure web applications that grow with your business.
What is a Custom Web Application?
A web application is a custom software solution accessible via the browser, specifically developed for an organization's business processes. AIFAIS builds AI-powered bespoke web applications for Dutch SMEs: customer portals, dashboards, internal tools, workflow apps and data-driven applications. Looking to have a web application developed? Development from €5,000, live within 8-12 weeks, with a NL-based team combining Next.js, React, TypeScript and AI models (Claude, GPT-4) into scalable solutions.
Why Have a Web Application Built?
A custom web application gives you full control over your digital processes. Here's what sets a bespoke web app apart.
100% Custom Built
Your web application is built exactly for your business processes. No compromises with standard software, but a solution that fits like a glove.
Scalable & Future-Proof
Built with modern technology that scales with you. From 10 to 10,000 users without rebuilding. Your web application grows with your ambitions.
Seamless Integrations
Connect your web application to existing systems: ERP, CRM, accounting, e-commerce. Bidirectional data synchronization in real-time.
AI-Powered Intelligence
Built-in AI makes your web application smarter: automatic processing, predictive analytics, chatbots and intelligent search functions.
Rapid Development
From idea to live web application in 8-12 weeks. We work in sprints with interim demos, so you always have control over the result.
Secure & Reliable
Enterprise-grade security with SSL, encryption, role-based access and 99.9% uptime. Your data is always safe and your web application always available.
How Does It Work? 4 Steps to Your Web Application
From idea to live web application in 8-12 weeks. Transparent, iterative and always with your input.
Discovery & Design (week 1-2)
We analyze your processes, talk with stakeholders and translate your needs into wireframes and a technical architecture plan for your web application.
UI/UX Design & Prototype (week 3-4)
A clickable prototype of your web application. You give feedback, we iterate. So you know exactly what you'll get before we start building.
Development & Integration (week 5-10)
We build your web application in 2-week sprints with interim demos. Frontend, backend, API connections and AI integrations are delivered step by step.
Launch & Ongoing Support (week 11-12+)
Go-live with extensive testing, monitoring and ongoing maintenance. Your web application stays up-to-date, secure and optimized.
Web Application Use Cases
From customer portals to internal workflow tools — discover what a custom web application can do for your business.
Customer Portal
A branded portal where your customers log in, view data, upload documents and start processes. 24/7 self-service, fewer phone calls.
Dashboard & Reporting
Real-time dashboards with live KPIs, charts and automatic reports. All business data in one place, always up to date.
Internal Tools & Admin
Custom-built tools for your team: order management, inventory systems, HR portals and more. Replaces spreadsheets and disconnected systems.
Workflow Applications
Automated business processes with smart routing, approval flows and notifications. From request to completion, fully digital.
Web Application vs Website vs SaaS
Understanding the difference helps you choose the right solution. A web application offers maximum flexibility and control compared to a standard website or SaaS platform.
| Criteria | Web Application | Website | SaaS |
|---|---|---|---|
| Purpose | Automate processes | Display information | Generic tooling |
| Customizability | 100% tailored | Limited (themes) | Configurable |
| Interactivity | Fully interactive | Minimal (forms) | Moderate |
| Integrations | Any API possible | Limited | Fixed offering |
| User roles | Custom, unlimited | Not applicable | Standard roles |
| Ownership | Fully yours | Yours (hosting) | License / subscription |
| Scalability | Unlimited | N/A | Depends on plan |
| Price | €5,000 – €50,000+ | €1,000 – €5,000 | €50 – €500/month |
Purpose
Customizability
Interactivity
Integrations
Ownership
Price
For businesses that need interactive functionality, seamless integrations and full control over their digital processes, a custom web application is the smartest choice. A website is ideal for online presence, SaaS for generic needs — but for lasting competitive advantage, a bespoke web application pays for itself.
Frequently Asked Questions about Web Applications
What does it cost to have a web application built?
The cost of having a web application built depends on complexity and functionality. At AIFAIS, projects start from €5,000 for an MVP or first module. A web application with multiple integrations and user roles costs between €10,000 and €25,000. Complex enterprise web applications start from €25,000. We always work with a fixed price after the discovery phase, so you know exactly what you're investing upfront.
What is the difference between a web application and a website?
A website is primarily informational: it displays content to visitors. A web application is interactive and allows users to input data, start processes and execute tasks. Think of a customer portal where clients manage their information, a dashboard with real-time data, or an internal tool for order management. A custom web application replaces manual processes with automated digital workflows.
How long does it take to develop a web application?
Developing a web application takes on average 8-12 weeks from discovery to launch at AIFAIS. Simple web apps or MVPs can go live in 4-6 weeks. More complex web applications with many integrations, user roles and AI functionality take 12-16 weeks. We work in 2-week sprints with demos, so you continuously see progress and can adjust course.
Can AI be integrated into a custom web application?
Absolutely, AI integration is our specialty. We build web applications with built-in intelligence: automatic document processing, smart search functions, chatbots, predictive analytics and automated decision-making. We work with AI models like Claude and GPT-4 and integrate them seamlessly into your custom web application. AI makes your web app smarter and your processes faster.
Is a web application also accessible on mobile?
Yes, all web applications we build are fully responsive and work perfectly on desktop, tablet and mobile. We also develop Progressive Web Apps (PWAs) that can be installed like a native app on your phone, including offline functionality and push notifications. This way your team always has access to the web application, anywhere.
Which company can build a web application in the Netherlands?
AIFAIS is a software and AI company in The Hague, Netherlands, that builds custom web applications for SMEs. From customer portals and dashboards to complete workflow applications — we develop bespoke web applications with Next.js, React and AI integration, including hosting and ongoing maintenance. Looking to have a web application built? Contact us for a free consultation.
Based on 4 reviews
Adviesbureau Skandara
February 17, 2026
AIFAIS helped us within a week (!)
AIFAIS helped us automate business processes within a week (!). The team is very accessible and committed. Thank you!
R
February 14, 2026
Truly collaborative with great results
We have been working with this AI company for several months and honestly, we are truly pleasantly surprised. Faissal and Mark have been thinking along with us from the start, practically, from A to Z, about what could be better and smarter in our work. They built multiple systems for us and we notice the difference every day. Things that used to take a lot of time now run automatically, which saves us enormously.
Emma van Wiggen
February 8, 2026
Satisfied
Satisfied. They built a new website that is now findable for AI search engines.
Adam Adam
January 29, 2026
They integrated AI into my website
They integrated AI into my website and the chatbot works well, it knows exactly what information to tell the customers.
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Our Services
View the complete overview of AIFAIS services and solutions.
Contact
Get in touch for a free consultation about your web application.
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