Web Application Development
Custom Web Application Development
Need more than a website? We build custom web applications and SaaS platforms that scale with your business. From internal tools to customer-facing products - modern architecture, clean code, and reliable delivery.
Why Choose Us
Fast Delivery
From first call to live product. No endless development cycles.
Fixed Pricing
Transparent quotes. No hidden fees. No scope creep surprises.
Full Service
One team handles everything. No coordination headaches.
Services
What We Build
Turn your concept into a working product in 6-8 weeks. We help you define features, build a functional MVP, and get it in front of real users - before you waste money on full development. From market research through user testing, we handle the complete journey from idea to validated product.
Read more - Product & MVPBeautiful interfaces your users will love. We design in Figma, deliver complete design systems, and can hand off to your dev team - or build it ourselves. From user research through developer handoff, we create designs that are both visually stunning and conversion-focused.
Read more - DesignFrom landing pages to full e-commerce platforms. We build fast, responsive websites that look great and drive results. Whether you need a corporate site, an online store, or a complex SaaS dashboard, we deliver clean code that performs.
Read more - Web DevelopmentWe don't disappear after launch. From bug fixes to feature additions, we provide ongoing technical support and maintenance so your product stays healthy and evolving. Whether you need a code audit, performance improvements, or a full project rescue, our team steps in and delivers.
Read more - Project SupportFrom idea to App Store publication. We develop mobile apps for iOS and Android using Ionic, .NET MAUI Blazor, or as progressive web apps. Full service includes UI/UX design, backend development, push notifications, analytics, and 90 days of post-launch support.
Read more - Mobile AppsPricing
Pricing Tailored to Your Project
Every project is quoted individually after understanding your requirements.
Landing Page / Small Website
From €490
Perfect for businesses needing a professional web presence
- Up to 5 pages
- Responsive design
- CMS integration (WordPress)
- Contact form
- Basic SEO setup
- 1 year free hosting
- 30 days support
Corporate Website / E-commerce
From €1,200
Complete website solution with advanced features
- Custom design (Figma)
- Up to 15 pages
- CMS integration
- E-commerce functionality (optional)
- Blog setup
- Advanced SEO
- Payment integration
- 1 year free hosting
- 60 days support
MVP / Web Application
From €2,900
Full product development from idea to launch
- Market research & validation
- Custom UI/UX design
- Full-stack development
- User authentication
- Database architecture
- API integrations
- Testing & QA
- 1 year free hosting
- 90 days support
Mobile App Development
From €4,900
Native or cross-platform mobile applications
- Custom UI/UX design
- iOS & Android development
- Backend & API development
- Push notifications
- App Store submission
- Analytics integration
- Beta testing
- 90 days support
We work with budgets of all sizes. Schedule a free consultation to discuss your specific needs and get a tailored quote.
FAQ
Web Application Development - FAQ
SaaS platforms, customer portals, booking systems, dashboards, internal business tools, and marketplace platforms. If it runs in a browser, we can build it.
Web applications start from approximately 100,000 CZK (~€4,000) for an MVP. Complex platforms with integrations cost more. We provide detailed fixed-price quotes after a technical discovery session.
Nuxt/Vue or Next.js/React on the frontend, Node.js or Python on the backend, PostgreSQL or MongoDB for databases. We choose the best stack for your specific requirements.
Absolutely. We specialize in MVP development - launch a working product in 6–10 weeks, validate with real users, then iterate based on feedback.
Yes. We handle deployment to cloud platforms (AWS, Vercel, DigitalOcean), set up CI/CD pipelines, monitoring, and manage ongoing infrastructure.
Custom Web Application Development
When a standard website is not enough, a custom web application can transform the way your business operates. From client portals and booking systems to internal dashboards and SaaS platforms, Kosmoweb builds web applications that solve real business problems and create competitive advantages. Our development team in Prague specializes in scalable, secure applications built with modern technologies.
We develop web applications using frameworks like React and Next.js on the frontend, paired with robust backend architectures that handle complex business logic, user authentication, and third-party integrations. Whether you need a CRM, an inventory management system, or a customer-facing portal, we architect solutions that are maintainable, testable, and ready to scale.
Our process begins with detailed requirements gathering and technical planning. We use agile development practices with regular demos and feedback loops, so you always know exactly what is being built and can adjust priorities as needed. This collaborative approach minimizes risk and ensures the final product meets your expectations on both functionality and design.
We serve clients from Prague and Brno to international companies entering the Czech market. Whether your web application requires cloud hosting, API integrations, or complex data workflows, our team has the experience to deliver. Post-launch, our support and management services keep your application running smoothly while we iterate on new features based on user feedback and analytics.