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Our Services
Digital solutions that drive your business forward
From the initial idea to the finished product: we build websites, apps, and AI integrations that deliver measurable results. Custom-built, technically excellent, and designed for long-term success.
Why businesses trust us
As a digital partner for businesses in Langenfeld, NRW, and across Germany, we combine technical expertise with strategic thinking. Every project starts with a free consultation where we work together to find the solution that truly fits your goals – honest, no obligation, and without agency overhead.
Over 50 successfully delivered projects for startups, SMEs, and e-commerce businesses
Cutting-edge technologies: Next.js, React, Node.js, Python, Flutter, GPT-4
100% customer satisfaction on Trustpilot – real reviews, real results
Personal support from senior developers – no outsourcing, no call centers
Transparent pricing and dedicated contacts throughout the entire project
SEO-optimized solutions for maximum visibility on Google & beyond
Why businesses trust us
Web Development
Professional websites and web applications built with Next.js, React, and Tailwind CSS. From simple business websites to complex platforms – responsive, high-performance, and SEO-optimized. We build websites that don't just look great but also rank on Google and convert visitors into customers.
- Next.js & React 19
- Responsive Mobile-First Design
- SEO & Core Web Vitals
- CMS Integration (Strapi, Sanity)
- Progressive Web Apps
- Performance Optimization
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AI Integration
Artificial intelligence for your business: chatbots, content generation, workflow automation, and data analysis. We seamlessly integrate GPT-4, Claude, and custom AI models into your existing IT infrastructure – for measurable time savings and smarter business processes.
- ChatGPT & GPT-4 Integration
- Chatbots & AI Assistants
- Automated Content Creation
- RAG & Knowledge Bases
- Workflow Automation
- Predictive Analytics
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App Development
Native and cross-platform apps for iOS and Android built with React Native and Flutter. From conception through design to App Store publishing – we guide you through the entire process and build apps that delight your users.
- React Native & Flutter
- iOS & Android Native
- Progressive Web Apps
- Mobile UI/UX
- Backend & API
- App Store Publishing
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E-Commerce
Online shops and e-commerce platforms that sell. With seamless payment integration (Stripe, PayPal, Klarna), inventory management, conversion optimization, and analytics – for measurably more revenue and happy customers.
- Shopify & Custom Shops
- Payment Integration
- Conversion Optimization
- Inventory & ERP
- E-Commerce Analytics
- Multi-Channel Solutions
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UI/UX Design
Modern web design that builds trust and converts. Design systems, 3D effects, animations, and responsive layouts – all from one source. We combine aesthetics with strategy so your digital presence delights users and achieves business goals.
- Design Systems
- Figma Prototyping
- 3D Effects & Animations
- Responsive Layouts
- Accessibility (WCAG)
- Brand & Visual Identity
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API & Backend
Robust, scalable backend systems and APIs – the invisible foundation of successful web applications. REST, GraphQL, microservices, cloud infrastructure (AWS, GCP), and DevOps for maximum reliability and performance.
- REST & GraphQL APIs
- Database Design
- Cloud Infrastructure
- Microservices
- DevOps & CI/CD
- Security & Auth
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Why Log-System Development?
We're not a typical agency. We're a tight-knit developer network that delivers results – fast, transparent, and technically at the highest level.
Work directly with developers
No project manager in between, no outsourcing. You talk directly to the developers building your project.
Cutting-edge technologies
Next.js 15, React 19, Tailwind CSS 4, Node.js, Python, Flutter – we use the latest tech stack for future-proof solutions.
SEO & Performance First
Every solution is optimized for search engines and performance from day one. Lighthouse scores near 100 are our standard.
Transparent communication
Regular updates, dedicated contacts, and honest assessments. You always know where your project stands.
How we work together
1
Free initial consultation
We get to know your project, understand your goals, and provide an honest assessment – completely free and no obligation. You'll hear from us within 24 hours.
2
Strategy & concept
Together we define the scope, technology, and timeline. You receive a transparent quote with no hidden costs.
3
Design & development
Agile implementation in sprints with regular updates and feedback sessions. You see progress in real-time and can make adjustments at any point.
4
Testing, launch & support
Comprehensive testing, SEO optimization, professional deployment, and long-term support. We don't leave you alone after go-live.
Frequently asked questions
Costs depend on the scope and complexity of your project. A simple business website starts at around €2,500, with more complex web applications or shops costing accordingly more. After the free initial consultation, we'll provide a transparent quote – no hidden costs.
A business website is typically ready in 3–6 weeks. More complex projects like online shops or web apps take 6–12 weeks. In the free consultation, we'll give you a realistic timeline for your project.
Yes! Although we're based in Langenfeld (NRW), we work with clients across Germany and internationally. Thanks to modern communication tools (video calls, screen sharing, project management), collaboration works seamlessly – no matter where you are.
Absolutely. We offer flexible maintenance contracts with regular updates, security patches, and a dedicated contact person. This ensures your solution stays up-to-date and secure.
We use cutting-edge technologies: Next.js 15, React 19, and Tailwind CSS 4 for the frontend, Node.js and Python for the backend, React Native and Flutter for apps, and GPT-4 and Claude for AI integrations. We always choose the best technology for your use case.
Of course! We also offer pure technology consulting – for example, choosing the right tech stack, optimizing existing systems, or evaluating AI opportunities. The initial consultation is always free.
Ready for your next project?
Tell us about your idea – we'll advise you free of charge and with no obligation. You'll hear from us within 24 hours.
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