Websites
Creating and modernising websites — including LLM-SEO and SEA campaigns.
Designed, developed and tested – with AI support
We build
websites.
Everything IT — from your website to a complete AI-OS. We design, develop and test your software with state-of-the-art AI support. Guided and signed off by us, so only the best quality reaches you.
Already have software? We'll build your software FOR LESSRequest now →// Services
We build everything IT.
4develope from Solingen, Germany, builds websites, online shops, club apps, apps, order management software, IT platforms and AI-OS systems for companies, freelancers and clubs. We tailor every solution to you and build it exactly the way you want it.
LLM-SEO/GEO & SEA
Visible on Google and in AI answers: we optimise you for search engines and LLMs — plus high-performing ad campaigns.
Online shops
From product management to secure checkout — your entry into e-commerce, easier than ever.
Club apps
News, events, media and organisation — your club in one app that reaches every member.
Order management
Dispatch, planning, execution: every process clear, transparent and easy to control.
IT platforms
Any kind of platform — scalable, cloud native and tailored exactly to your use case.
Apps
Native and web apps for any purpose — from first concept to the App Store.
AI-OS systems
We build complete AI operating systems for your business — your processes, orchestrated by AI.
// Approach
Top quality! Closely aligned with you.
We design, develop and test your software with state-of-the-art AI support. We guide every step and give the final sign-off — so only the best quality reaches you.
01
Concept
We design the architecture, data model and design drafts.
02
Prototype/MVP
You get a hands-on early version — your feedback flows straight into development.
03
Development & testing
The code is written and continuously tested automatically for bugs, security and performance.
04
Expert reviews
We guide every step and only release once the quality is right.
FOR LESS
Already using software?
Then we'll rebuild it for you — for less than your current provider. Same features, modern technology, AI speed. Just send us your request.
// AI-OS
An operating system that thinks ahead.
We build complete AI-OS systems: one central, intelligent interface for your entire business. Orders, communication, analytics — orchestrated by AI, built the way you want.
your-company — AI-OS
➜ ai-os analyse this week's orders
✓ 23 orders dispatched, 4 prioritised
➜ ai-os create quote for new client
✓ Quote #2041 created & ready for approval
➜ ai-os monthly report
✓ Revenue +18% — report is in your inbox
➜
// References
Already running at our clients.
Losch Elektrotechnik
Digital order dispatch for trades: from planning to execution — everything transparent and under control.
Shair Solingen
A modern online shop from product management to secure checkout — fast, flexible, intuitive.
Wagner Brandschutz
Reliable hosting and email services plus IT consulting — so the focus stays on the core business.
Midwife Anna-Lena Piel
Fully managed web presence with a secure website and email communication — all from a single source.
// Team
Four friends. What matters to us: being close to our clients.
4develope was founded in 2022 by four friends from the IT industry and is based in Solingen, Germany — today your go-to team for modern software development.
Markus Wagner
Project Management
Phil Korte
Cloud Architect
Ricardo Loock
Software Engineer
Justin Mertmann
Software Engineer
// FAQ
Frequently asked questions.
What does 4develope do?
4develope is a software agency from Solingen, Germany. 4develope builds websites, online shops, club apps, apps, order management software, IT platforms and AI-OS systems, and supports websites with SEO, LLM-SEO/GEO and SEA.
Where is 4develope based and who do you work for?
4develope is based at Forststraße 50 in Solingen, Germany. Its clients include trades businesses, retailers, law and tax firms, freelancers and clubs – from Solingen and the Bergisches Land region as well as the rest of Germany.
How does a software project with 4develope work?
A project with 4develope has four steps: a concept covering architecture, data model and design drafts; an early prototype or MVP to try out; development with continuous automated testing for bugs, security and performance; and final reviews, after which the team releases the software.
What role does AI play in development?
4develope designs, develops and tests software with AI support. This speeds up development; every step is still guided by the developers and signed off by them before delivery.
We already use software. Can 4develope replace it?
Yes. 4develope rebuilds existing software with the same features on modern technology and offers it for less than the current provider. For a quote, a short description of the current software via the contact form is enough.
What is an AI-OS system?
An AI-OS system is a central interface for an entire business in which orders, communication and analytics are orchestrated by AI – for example dispatching orders, creating quotes or generating monthly reports. 4develope builds AI-OS systems individually around the processes of each business.
What is LLM-SEO or GEO?
LLM-SEO, also called GEO (Generative Engine Optimization), makes sure a business is described correctly and cited as a source in the answers of AI assistants such as ChatGPT, Perplexity, Claude or Google AI Overviews. 4develope offers LLM-SEO together with classic search engine optimisation and SEA campaigns.
Does 4develope also handle hosting and support after launch?
Yes. On request, 4develope takes care of hosting, email mailboxes, maintenance and further development, and runs the complete web presence as a fully managed service for several clients.
How much does a project with 4develope cost?
The cost depends on the scope of the project. 4develope prepares an individual quote for every project; a short project description via the contact form on 4develope.com is all it takes.
// Contact
Tell us about your project.
Whether it's a new idea or existing software — we'll get back to you as soon as possible.