Premium Service

Web Apps

Development of individual web applications that are perfectly tailored to your business requirements.

Starting PriceStarting from €2,500
Project Duration2-4 weeks
Technologies5+
Free Consultation
Premium Quality
100% Satisfied
Fast Implementation

What You Get

Custom development
Database design
API integration
User authentication
Real-time features
Cloud deployment

Your Benefits

Individual solution

Perfectly adapted to your needs

Scalability

Grows with your company

Integration

Seamless connection to existing systems

Our Technologies

React
Node.js
MongoDB
PostgreSQL
AWS

Custom web applications instead of off-the-shelf software

When off-the-shelf software does not fit your processes, teams end up working with spreadsheets, duplicate data entry, and workarounds. A custom web application maps your processes the way you actually work: in the browser, on any device, and without installation.

We develop web applications from the database to the user interface, with user accounts and roles, integrations with existing systems, real-time features, and cloud deployment. The technologies we use include React, Node.js, PostgreSQL, MongoDB, and AWS.

Examples from our work include a booking system for salons and appointment-based businesses, a contract management tool with deadline alerts, and a multi-tenant SaaS platform for mortgage finance advisors.

Typical web applications

  • Booking and appointment systems
  • Management and document systems, for example for contracts
  • Customer portals and internal tools
  • Multi-tenant SaaS platforms
  • Tools with AI features, for example for automated document analysis

What matters in web applications

A clear first version

The first version focuses on the features that deliver the most value; others follow in stages.

User roles and permissions

Who can see and edit what is clearly defined from the start.

Integrations

The application works with your existing systems instead of creating yet another silo.

Scalability

Architecture and cloud deployment are chosen so that the application can grow with your business.

Security

Authentication, access rights, and data storage are implemented and tested with care.

How your web application is built

  1. 1

    Requirements

    We capture workflows, user roles, and integrations and define what the first version must deliver.

  2. 2

    Concept and fixed price

    Data model, interface, and architecture are defined; you receive a written quote.

  3. 3

    Development in stages

    We develop in clear steps, and you test working interim versions.

  4. 4

    Launch and further development

    The application goes live; afterward, we expand it based on your experience.

Costs and timeline

Web applications start at €2,500. A focused first version is usually completed in two to four weeks; we plan larger applications in stages.

We define the scope of each stage and the fixed price in writing before we begin. We also show you hosting and operating costs transparently in advance.

Send a project inquiry

Frequently asked questions about web applications

How much does a web app cost?

Web applications start at €2,500. The price depends on features, user roles, and integrations. You receive a written fixed price for the agreed stage before we begin.

How long does development take?

A focused first version usually takes two to four weeks. We develop larger applications in stages, each of which delivers a usable version.

Can the application be connected to existing systems?

Yes. Through APIs, we connect the application to your existing systems, such as CRM, email, or accounting.

Who owns the source code?

We set this out in writing in the quote before we begin, so you know which rights to the application you receive.

Does the application also run on smartphones?

Yes. Web applications run in the browser on computers, tablets, and smartphones. If features such as the camera or offline use are central, an app may make sense in addition.

Portfolio

Web Apps Projects

Our Web Apps projects we have implemented so far

QRiety
Web AppsLive

QRiety

2025

Intelligent QR-Code Generator web application with advanced features

ReactNext.jsTailwind CSSNode.jsPostgreSQL
FeedPanels
Web AppsLive

FeedPanels

2025

Professional Customer Feedback Platform

ReactNext.jsMongoDBFastAPI
UseLinkio
Web AppsLive

UseLinkio

2025

Professional link management and redirection platform

ReactNode.jsPostgreSQL
Contract Manager
Web AppsLive

Contract Manager

2023

Comprehensive contract management system with AI-powered analysis

BootstrapLaravelMySQL
Chatzbotz
Web AppsLive

Chatzbotz

2026

Customizable AI Chatbot for Websites

ReactSupabaseREST API
ZeuZ IT Buchungsmeister
Web AppsLive

ZeuZ IT Buchungsmeister

2026

Website & Online Booking for Salons and Service Businesses

Next.jsReactTypeScriptSupabase
ThumbStudioz
Web AppsLive

ThumbStudioz

2026

AI Thumbnail Generator for YouTube, TikTok & Instagram

ReactFastAPIMongoDB
ZeuZ Voice
Web AppsLive

ZeuZ Voice

2026

AI phone assistant for call handling, appointment booking and customer inquiries around the clock

Next.jsPythonLiveKitTwilio
0clock
Web AppsLive

0clock

2025

Modern online clock with alarm, timer and stopwatch. Perfect for productivity and time management with dark/light mode and fullscreen function.

ReactNext.jsTailwind CSS
Convertury
Web AppsLive

Convertury

2025

Professional Unix Timestamp Converter with timezone support. Converts between Unix timestamps and readable date/time formats with bulk conversion.

ReactNext.jsTailwind CSS
FiFlowy
Web AppsLive

FiFlowy

2026

SaaS platform for mortgage finance advisors

Next.jsReactSupabaseStripe
Web AppsComing Soon
Coming Soon

BauDoku

2026

Professional construction diary app for efficient site documentation.

ReactNext.jsSupabase
MakeMySig
Web AppsLive

MakeMySig

2025

Professional email signature solution

Next.jsReactSupabase

Ready to start?

Let's realize your project together. Contact us for a non-binding consultation.

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