Unclear requirements
Many projects start without a clear goal: Who will use the app? What should it do? Which processes should it replace? Without answers, expensive misbuilds follow.
We spent 6 months building and it was the wrong product.
Web App Development
Professional web app development cloud software solution
Off-the-shelf software rarely fits individual workflows. We build powerful web apps that run in the browser on desktop, tablet and mobile: with multiple users, separate tenants, or both, depending on your model. Customer portals, internal tools, booking platforms or AI dashboards, we deliver what you actually need.
Custom solution
Scalable & maintainable
20+ years experience
Book a free intro call
Free and non-binding · No vendor lock-in · GDPR-compliant
The challenge
Why most web app projects fail
Most projects fail not because of technology, but because requirements are unclear, the wrong stack was chosen, or the software cannot evolve after launch. We see these three hurdles in hundreds of projects.
Privacy and security unclear
GDPR, hosting location, encryption, user data: many agencies clarify this too late. Fixes afterwards cost far more than planning ahead.
Our old solution was not GDPR-compliant. We only noticed when legal got involved.
Vendor lock-in after launch
Software only the original agency can maintain keeps you dependent. Without documentation and open technologies, you are stuck.
We could not even update the app ourselves after the project.
What you get
What we deliver for you
No theory overload. We work on your real project, with tools that work today.
Customer portals and login areas
Secure user accounts with roles, profile management and custom dashboards for customers, partners or staff.
Dashboards and data visualization
Real-time reporting, KPI tracking and interactive charts so decisions are based on real data.
Process automation
Automate manual workflows: forms, approvals, email triggers, APIs to CRM, ERP or third-party tools.
AI integration
GPT assistants, smart search, auto-classification or document analysis, built into your web app.
Booking and reservation systems
Calendar bookings, availability checks, automatic confirmations and payments via Stripe, PayPal and more.
API connections and integrations
We connect your web app to existing systems: Slack, Zendesk, HubSpot, DATEV, your databases and more.
How it works
Your web app in 4 clear steps
Transparent, predictable, no nasty surprises.
1
Free intro call
We analyse your needs together: use case, audience, core features and technical requirements. You get an honest estimate of effort and budget, with no sales pressure.
2
Concept and fixed-price quote
After the call you receive a clear concept with feature overview, timeline and fixed price. No hourly billing, no surprises.
3
Development with regular reviews
We build in short cycles and show progress regularly. You can give feedback anytime before things go wrong.
4
Launch, handover and support
After go-live you receive full documentation, source code and onboarding. No vendor lock-in. We stay with you for maintenance and further development.
Results
Numbers that back us up
No promises without proof.
20+
Years of experience
in software development
in software development
100%
Personal support
until go-live
until go-live
DE
Hosting in Germany
GDPR-compliant
GDPR-compliant
5
Languages
international teams
international teams
★★★★★We needed an internal order management tool, live in 6 weeks. Well documented, easy to extend.
★★★★★Our customer portal with login and document storage ended email chaos. Clear, GDPR-compliant, customers use it daily.
★★★★★The appointment booking web app for our practice was online in five weeks. Calendar, reminders and Stripe run stable in the browser.
★★★★★Time tracking and leave requests for 25 staff, all in one web app. No more Excel, HR saves many hours every month.
★★★★★The quote configurator on our site calculates prices automatically. Fewer back-and-forth emails, more qualified leads, exactly the goal.
★★★★★Clients upload documents securely, we see status in the dashboard. Simple web app, huge relief for our tax firm.
★★★★★Warehouse management with barcode scan in the browser on tablets. Stock levels match, reorders without paper chaos.
★★★★★Multi-tenant dashboard for agency clients: each customer sees only their data. Scalable, hosting in Germany, great support.
★★★★★Customers report issues via our service portal, tickets go straight to the right team. Response time dropped sharply.
★★★★★Training bookings with PayPal and waitlist in a lean web app. Participants book themselves, we keep overview in admin.
★★★★★KPI dashboard with HubSpot: revenue, leads and pipeline live. Finally one source instead of five Excel files every Monday.
Q&A
Frequently asked questions about web app development
A web app is an interactive application that runs in the browser without installation. You need one when users should log in, enter data or trigger processes: customer portals, booking systems, internal tools or automated workflows.
Simple web apps start from around 300 EUR. More complex platforms with user management, APIs and AI cost more. We work with fixed prices only. After a free intro call you receive a transparent quote with no hidden fees.
Simple web apps are ready in 2-4 weeks. More complex platforms with multiple roles or AI need 4-24 weeks. We deliver on a clear roadmap with regular milestones you can see live.
Yes. We build to German privacy standards: hosting in Germany, SSL encryption, secure authentication, no data transfer without consent. We can also provide privacy documentation for your app.
We develop with React, Next.js, Node.js and Python as required. For fast delivery we use AI-assisted low-code frameworks. All solutions are open: you are not tied to us.
Yes. We integrate AI into your web app: GPT assistants, smart search, document analysis or classification, GDPR-compliant and based on your own data.
You receive full documentation and source code. No vendor lock-in. We offer maintenance, security updates and further development as needed, but you are never forced to stay with us.
Yes. We support companies on site in Cologne, Bonn and Düsseldorf and remotely across Germany. Workshops and meetings are online or in person.
Your web app idea deserves more than off-the-shelf software
Free intro call, no risk, no vendor lock-in. We work with clients in Cologne, Bonn and remotely across Germany.
Book a free intro call
100% GDPR-compliant
Hosting in Germany
No vendor lock-in
Cologne · Bonn · Germany-wide