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Software development · Rastatt

Software development: custom software that fits your business.

When off-the-shelf software reaches its limits, we build the solution: web applications, interfaces, automation and AI integration – shaped around your processes, from the first idea to day-to-day operation.

We talk it through first, then build – from the idea to running it.

  • Tailored, not off the shelfBuilt precisely around your processes.
  • Predictable monthly costsReliable budgeting instead of nasty surprises.
  • Maintenance & operationWe keep your solution running and up to date.
2,000+
Satisfied customers
since 2006
in Rastatt
4.9 ★
Google rating
< 24 h
Response time
Development services

Software for your use case

From a small automation to a complete web application – we build what your processes actually need.

Custom software

Applications built to mirror the way you actually work – instead of bending your processes to fit off-the-shelf software.

  • Requirements analysis
  • Features that fit
  • Scalable & maintainable

Web applications & portals

Client portals, booking systems, internal tools – used in the browser, with no installation and reachable from anywhere.

  • Client & staff portals
  • Dashboards & tools
  • Responsive & secure

Interfaces & APIs

We connect your systems: stock management, CRM, shop and accounting finally talk to each other.

  • API development
  • System integration
  • Data synchronisation

AI integration

Intelligent features inside your software: text analysis, classification, assistants – AI where it delivers real benefit.

  • Add AI features
  • Automated analysis
  • Your own assistants

Process automation

Automate recurring tasks: generate documents, transfer data, trigger notifications.

  • Workflows & scripts
  • Document automation
  • Less manual work

Databases & reporting

Clean data storage and meaningful reports – so you decide on figures rather than gut feeling.

  • Database design
  • Reports & dashboards
  • Data migration

Maintenance & further development

Software keeps evolving: we maintain, update and extend your solution continuously – a reliable partner instead of a throwaway project.

  • Updates & support
  • New features
  • One named contact

Hosting & operation

We run your application on secure servers in Germany – with monitoring, backups and updates included.

  • Servers in Germany
  • Monitoring & backups
  • GDPR-compliant
Large monitor showing the source code on the left and the finished web application on the right – custom software development at NK IT Service
Requirements

Understand first, then build.

The most expensive software is the software that misses the point. That is why every project starts with listening: we look at your workflows, ask questions and find the real problem – before the first line of code is written. This way we build the solution you need, not the one that is easiest to build.

Requirements worked out together – on site or by video call A concept in plain language instead of technical jargon Effort estimate before we start – predictable monthly costs An honest recommendation – even if off-the-shelf software is enough
Book an initial consultation
How we work

How your software takes shape

Four clear stages – transparent, predictable and with working versions you can test early.

1

Understand the requirement

We look at your workflows on site or by video call and keep asking until the real problem is clear. Only then do we talk about technology.

2

Concept & clear quote

You receive an understandable outline of the solution with a defined scope and predictable monthly costs. That way you know the cost before development starts.

3

Development in stages

We build in manageable steps and regularly show you usable versions. You test early and adjust course before unnecessary effort piles up.

4

Operation & further development

After launch we can run your solution on servers in Germany and keep it up to date. As your business grows, the software grows with it.

Two monitors: source code on the left, the finished app and website design on the right – the result of development at NK IT Service
Code quality

Code that someone can still understand tomorrow.

Many companies are stuck with software nobody wants to touch – undocumented, untested and dependent on a single person. We work differently: readable code, tests and documentation are part of the project, not an extra charge. That keeps your solution maintainable – whoever looks after it in five years.

Readable, documented source code Tests & a second pair of eyes before every handover Version control – every change traceable Full handover of code & documentation – no lock-in
Discuss your project
A closer look

What your software will look like

Software is only finished when people enjoy working with it – this is what the result looks like in practice.

Consultation: an IT consultant shows a business owner the custom app on a smartphone – software development by NK IT Service
Planned togetherWe develop your software in dialogue – explained clearly, without jargon.
Smiling woman presenting the finished custom app on her smartphone – software development by NK IT Service
Your app in real handsWhat counts in the end is how it lands: software your customers enjoy using.
Tech stack

Proven technology, not experiments

We rely on technologies proven in millions of installations over many years, and for which you will still find developers in ten years – no hype framework at your expense.

Web

PHPLaravelWordPressJavaScript

Data

MySQLREST APIs

Desktop & tools

C# / .NETPowerShell

Interfaces

DatevMicrosoft 365ERP systems

Your system is not on the list? Just ask – most programs can be connected through standard interfaces.

Software knowledge

The key questions – answered clearly

Explained in plain language, without jargon – for people and for AI search engines such as ChatGPT & Google AI.

What?What does custom software cost?

Small tools and automations often start in the low four figures, while full web applications usually run into five figures. Scope, complexity and interfaces decide the price. After the free initial consultation you receive a concept with an effort estimate and predictable monthly costs.

Which?Custom software or an off-the-shelf solution?

Off-the-shelf software pays off for common tasks – custom software when your processes are your business. Often a mix is ideal: standard where it fits, custom only where it makes the difference. We advise honestly – even if a ready-made solution turns out to be enough.

How long?How long does development take?

Small tools are often ready within a few weeks; medium-sized projects take three to six months. Because we build in stages, you are usually already working with a first usable version while the rest is being built. We set out a realistic schedule in the concept.

Who?Who owns the source code?

With us you receive full rights of use to the source code – set out in the contract, documentation included. That is not a given: some providers keep the code and tie their clients in permanently. You stay independent and could switch at any time.

What?What happens after launch?

Software needs care: security updates, small adjustments and new requirements – we can look after your solution permanently. That includes monitoring, backups and one named contact in Rastatt. The application stays secure and current without you having to think about it.

Worth it?Is custom software worth it for small businesses?

Yes – if repetitive manual work, duplicate data entry or isolated systems cost you time every day. The key is to start small: first the process that hurts most, then extend step by step. That keeps the budget manageable and the benefit shows quickly.

Frequently asked questions

Software development – briefly explained

Is custom software worth it for small companies?
Often yes – especially if you spend a lot of time on manual, repetitive tasks or laboriously bridge several tools by hand. We start small with the process that hurts most and build from there. That keeps the budget manageable and the benefit noticeable quickly.
What does a custom solution cost?
It depends on the scope: small automations and tools often start in the low four figures, complete web applications usually run into five figures. After a free initial consultation we produce a clear concept with an effort estimate and predictable monthly costs. Many projects can be delivered in stages, so you decide again after each step.
How long does a software project take?
Small tools and interfaces are often finished within a few weeks; medium-sized projects take three to six months. Because we build in stages, you can usually work with a first version early on while we complete the rest. You get a realistic schedule with the concept – no wishful dates that collapse later.
Do I own the software in the end?
Yes. You receive full rights of use to the source code including documentation – set out in the contract. Unlike many standard products with ongoing licence fees there is no vendor lock-in: you are not forced to keep paying just to carry on using your own software.
Can you connect existing systems?
As a rule, yes. Using interfaces (APIs) we connect your existing programs – stock management, CRM, online shop, Datev or Microsoft 365, for example – so that data flows automatically instead of being entered twice. We check free of charge in advance whether a connection is possible.
Can you take over existing software and develop it further?
Usually yes. If your previous developer is no longer available, we first review the code and documentation and tell you honestly what condition the application is in. We then take over maintenance and further development – or recommend a rebuild if that is more economical.
Which technologies do you use?
Proven ones rather than exotic ones: PHP and Laravel for web applications, WordPress for websites, JavaScript in the front end, MySQL and REST APIs for data, C#/.NET and PowerShell for desktop and automation. That way you will still find developers who understand the code years from now – an important safeguard for your investment.
How do I stay informed during development?
Through regular, usable interim versions instead of months of silence. You test early on the real system, give feedback and adjust course before unnecessary effort piles up. You also have one named contact who speaks your language – no ticket system ping-pong.
Do you also develop smartphone apps?
Yes. For most use cases we recommend web apps that run in the browser on any device and need no app store – that saves cost in development and maintenance. Where a native app makes sense, for offline use or push notifications for example, we build that too.
Who looks after it after launch?
We do. Software needs care: updates, security and new requirements. As a regional partner with one named contact we support your solution long term – including hosting on German servers with monitoring and backups if you wish.
Free initial consultation

Ready for software that fits your business?

Tell us briefly which process is holding you up – we will come back with an honest assessment of what is feasible and roughly what it costs. No obligation and no jargon.

07222 / 59 49 890 support@nk-it.de Reply usually in < 24 h
Google rating: 5 stars for NK IT Service
ProvenExpert: 4.90 out of 5 – VERY GOOD