Custom software
Five tools and three spreadsheets become one system – built around your process. With AI-assisted development in weeks instead of months, at a fixed price. You own the code.
Example: web app Antragsbruder
How it works
This is what a core process looks like once it no longer runs across five tools.
Intake
Via form, email or interface – with all the details you need. Nothing gets typed up again.
System
Ownership, deadlines and next steps follow your rules. Everyone sees whose turn it is.
Your team
Documents, notes, times and approvals stay attached to the case – in the office and on the road.
You
Invoice data goes to accounting, key figures to the dashboard. And the knowledge lives in the system, not in one head.
Scope & prices
We build in usable stages. You get the fixed price per stage after the prototype.
One process, clean from start to finish
from€10,900one-off
or rent from €599 / month
For businesses with a team and interfaces
from€18,900one-off
or rent from €939 / month
For several departments or locations
from€29,900one-off
or rent from €1,389 / month
Buy or rent
The same software, two ways: pay once and own it – or rent monthly and start right away.
Buy
Pay once, own it for good.
Rent€0 upfront
A monthly rate instead of a one-off price.
Can be added to any tier – the fixed price is set after the prototype.
Sample calculation
Custom software costs more than a subscription. It is often still cheaper than the workaround.
Paid off after
around 6 months
Not included: errors from retyping, knowledge that depends on one person, and growth that becomes possible without new admin roles.
Sample calculation with assumed values – not a promise. Plug in your own numbers; we run them together in the first call.
When it isn't worth it
If standard software covers 90 percent of your process, use it – and at most let us add the missing ten percent. Custom only pays off where your process makes you special or licence costs rise with every user.
In use
Where we start depends on the business. Six industries, six typical entry points:
Real estate softwareTenant portal, prospect funnel, developer platform with buyer portal.Go to industry page 
Software for trades & servicesFrom enquiry through scheduling and field app to sign-off.Go to industry page 
Software for firms & advisorsClient portal with checklists, AI receipt recognition and deadlines.Go to industry page 
Software for car dealers & driving schoolsRental with handover report, driving school app, stock with lead inbox.Go to industry page 
Restaurant softwareMulti-branch system with central menu, catering configurator, reporting per location.Go to industry page 
Booking system for salons & beautyBooking with rooms, series and vouchers for practices and spas.Go to industry page Timeline
Understand first, then show, then build – that is how we avoid expensive surprises.
Day 1
We walk through your process step by step and prioritise by time saved, not by wish list.
Day 7
Clickable, with sample data. Changes cost almost nothing here. Then the fixed price is set.
Weeks 2–8
AI handles routine code, people check architecture and security. You see progress every one to two weeks.
From week 8
Start with one team, then roll out. Hosting, updates and new features continue predictably.
FAQ
One core process from around €10,900, several processes with roles and interfaces from around €18,900, a platform for several departments from around €29,900. We quote the fixed price after the prototype.
A core process is often productive after six to ten weeks. Larger platforms are built in usable stages.
We develop with AI assistance and rely on proven building blocks for login, roles, uploads and notifications. You pay for your process, not for the basics.
You do. You get source code, access and documentation. We use widespread technologies such as Next.js, TypeScript and PostgreSQL.
Because code and data are yours and the technology is widespread, any capable development team can take over.
AI writes routine code, people check architecture, security and usability. Tests and security checks run on every change.
winsym.ai is our technology partner from Kuala Lumpur for AI methodology and models. Consulting, design and development for you happen with us in Germany.
Enquiry
Tell us briefly which process costs you the most time. We will get back to you within 24 hours with an honest assessment – even if it is: there is off-the-shelf software for that.
No questionnaire, no sales pitch. Two sentences about your business will do.