Web apps power great online experiences. At Dev And Deliver, we blend creativity with AI-enhanced development and tools like React, Next.js, Node, and NestJS to craft unique solutions that reach users faster. Simple. Effective. Tailored for you.
Web application development is the backbone of successful online experiences, and we build it with one focused toolkit: Next.js, NestJS, Node and React. That focus is why Speeki has trusted us with their platform for 5+ years (now serving 100+ enterprise clients), and why Toja Covers went from idea to a live configurator in 5 weeks. Whether you're building an interactive web experience or a scalable web-based application, our JS expertise ensures seamless client-side and server-side functionality.
Our web application development services are here to help your business shine and stay ahead in today’s fast-moving, competitive markets. At Dev And Deliver, we pour our passion into crafting web applications powered by JavaScript - the backbone of modern, dynamic websites. Everything we create is built to the latest standards, ensuring your app isn’t just functional but also future-proof.
But we don’t stop at development. With our full-stack UI/UX services, we focus on creating intuitive, eye-catching designs that don’t just look good but feel amazing to use. It’s a true end-to-end solution, created just for you. Curious about what we can do for your web app needs? Dive into the details below and let’s get started!
Check out this web app case study!
We create web applications that are perfectly adjusted to your needs (does not matter if you are after a simple landing site or a complex, custom solution). By leveraging cutting-edge technologies like Next.js, Node, React, and React Native, we ensure your application is fast, reliable, and built to solve your unique challenges. Designed to perform and built to last.
We bring the front and back together, seamlessly. Using modern tools like React for the front end and NestJS for the back end, we build software that’s fast, secure, and reliable. It’s all about quality and scalability - software that grows with you, no compromises. Ready for now, ready for the future.
Outdated systems holding you back? It’s time to upgrade. We specialize in migrating legacy code to modern, secure, and scalable technologies like Node.js and React. With our deep expertise and extensive project experience, we ensure the transition is smooth and effective. No interruptions. Just results.
Whether it’s modernizing your architecture, orchestrating complex migrations, or addressing unique challenges, we’ve got it covered.
We create web apps that act like native ones (as much as it's possible). Fast, smooth, and mobile-first, they’re built to perform seamlessly on any device. No downloads, no hassle - just a great experience right from the mobile browser. It’s the best of both worlds: web simplicity meets app performance and in 90% of situations, it's cheaper in production than any native app.
We design and audit web apps. We will study your app and easily can track any potential issues, advise you how to improve the user experience. We also redesign or create apps from scratch, but not just any apps - ones that people love to use. It’s where beauty meets brains. Slick, intuitive, and downright delightful. Because a great design isn’t just about looking good; it’s about making every click feel effortless. That’s our sweet spot.
Planning
competitor analysis / identifying requirements / roadmap / cost and time estimations
Wireflows
Web app map / wireframing and prototyping / usability testing
UI/UX design
responsive design / style guides / preparing production files / hand-off
Development
coding / employing scalable databases / integrating APIs
Testing and debugging
code testing / verifying browser compatibility / manual and automated QA
Deployment and maintenance
deploying the app on web servers or cloud instances (AWS, GCP, Azure) / providing ongoing support for updates and enhancements
Ready to bring your app to life?
Share your idea, and we’ll handle the rest. Start your project today with just one simple step!
Planning
Wireflows & UI/UX design
Development
Testing and debugging
Deployment and maintenance
Our planning process identifies the types of web applications suited to your goals, whether it’s a progressive web app or a feature-rich custom web app. Using a step-by-step guide, we outline technical and business requirements for a seamless launch. At the end of this stage, you will have a time and cost estimation of your product.
Got an app to be developed?
Ready to make it happen? We’re here to help. Let’s work together to create an web app that truly works for you, your business, and your customers.
Partner with web app JavaScript specialists
Start your web app journey
At Dev And Deliver, we don’t just build apps. We bring your ideas to life and help your business stand out. Using cutting-edge tools? Of course. Modern frameworks? Always. But what really sets us apart is that we specialise in JS frameworks and we approach every project - with creativity, collaboration, and a drive to make something truly special. Whether it’s a sleek interface or powerful backend, we design solutions that grow with you, leaving a lasting impact. Ready to build something great? Let’s do it together.
We’re not just about code; we’re about connection. We take the time to understand your business, your goals, and what makes you unique. Every web app we craft is tailored to solve real problems, streamline processes, or create unforgettable user experiences. From brainstorming the first idea to launching the final product (and beyond), we’re right there with you. Think of us as your partner in innovation, not just a vendor. Together, we can turn challenges into opportunities and dreams into reality.
Ready to bring your web application to life? At Dev And Deliver, we’re here to help turn your ideas into something real. Whether it’s sleek design, seamless code, or smooth deployment, we’ve got you covered. We’re not just a team of developers; we’re your partners in creating something impactful. So, why wait? Reach out today, and let’s start building together!
Your project deserves more than just code - it deserves a creative, user-focused approach that makes an impact. We take the time to understand your vision and build solutions that fit your needs, not just the latest trends. From the first sketch to the final launch, we’re with you every step of the way. It’s not just about creating an app; it’s about creating something people will love to use. Let’s take your idea and make it unforgettable.
They’ve already trusted us.
Just wanted to send you a message to say thank you for your hard work that you’ve put into the app and admin panel, it seems like we’ve made sth great!
Ravi Chauhan, Director of Design & Marketing
Want to light up your ideas with us?
Kickstart your new project with us in just 1 step!
Web app development company from Kraków, Poland
Dev and Deliver
sp. z o.o. sp. k.
Address
Józefitów 8
30-039 Cracow, Poland
VAT EU
PL9452214307
Regon
368739409
KRS
94552994
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