Custom software development
We build custom software for companies, public sector clients and agencies: from the first concept to operations, with our own developers and designers in Germany.
Custom software from one team
We have been building software with Microsoft .NET for more than ten years. Since 2022 the whole company has worked to Clean Code Development, so that your software can still be extended years from now.
- Web applications, portals and business applications in the browser
- Apps for phones, tablets and desktops
- Databases, data migration and interfaces to ERP, CRM and Microsoft 365
- Automated tests and delivery through Azure DevOps
- Operations in the Microsoft cloud, support and further development after go-live
Who it is for
- Standard software cannot represent your processes properly.
- An application that has grown over the years has reached its limits and should be replaced or extended.
- You are a public sector client planning a portal or a business application.
- You are an agency or software house looking for a development partner, also white label.
How it works
Our projects run in five steps. You see interim results and have your say.
1.
Getting to know each other
In the first call we clarify the goal, the users, the existing systems and the rough effort.
2.
Concept and cost estimate
We record requirements and design and estimate the costs. A one-day concept workshop is there for this.
3.
Development
We develop in small steps and check in with you regularly, so that changes can come in early.
4.
Quality assurance and go-live
After testing and acceptance the software goes live. At the hand-over we settle operations and support.
5.
Support and further development
After go-live we fix errors, keep the software up to date and add new features on request.
Price frame
| Service | Frame |
|---|---|
| Projects | Fixed price from about €18,000, paid by milestones |
| Concept workshop (one day) | €2,400, credited against the project |
| Changes and extensions | €160 per hour, €1,280 per day |
| Operations and maintenance | From €1,500 per month, including monitoring, updates and four support hours |
These are guide figures, not quotes: all of them are non-binding and exclude VAT. We name the price for your project in our offer.
For clients in Switzerland: projects from about CHF 22,500, concept workshop CHF 3,000, changes CHF 200 per hour or CHF 1,600 per day, operations from CHF 1,900 per month.
Our cost calculator shows a first range for a software project in six questions.
Successfully completed projects
30/06/2025IPW - Internet Platform Wasser
30/06/2025IPW - Internet Platform Wasser
A web platform for municipal water infrastructure: sewer network, condition, measures and plans in one place.
31/12/2023KIM CRM - Customer at the Centre
31/12/2023KIM CRM - Customer at the Centre
KIM CRM – effective customer relationship management for lasting business success
15/03/2023Azure DevOps Connector for CAPAMAP
15/03/2023Azure DevOps Connector for CAPAMAP
An extension comprising an organisation settings page and a custom work item control. It configures the API key and domain, provides AutoSuggest for various object types and gives access to Azure DevOps work items with search and status display.
Frequently asked questions
What does custom software development cost?
It depends mainly on scope, user roles, interfaces, data migration and design. Our projects start at about €18,000 at a fixed price. The cost calculator shows a first range for your project; all figures are non-binding.
Fixed price or billing by effort?
We offer projects at a fixed price, paid by milestones. Later changes and extensions are billed by effort.
Do I need a finished requirements document?
No, a description is enough to start with. The project check turns it into a brief with follow-up questions, and it reads an existing requirements document too. Whatever is still missing we settle in the concept workshop.
Which technologies do you work with?
Current .NET (C#, ASP.NET Core, Blazor), SQL databases and Microsoft Azure, plus Microsoft 365 and Entra ID. Tests and delivery run through Azure DevOps.
Who works on my project?
Our own developers and designers do the concept and development, entirely in Germany. Your contact is the managing director, Görkem Ballmüller.
