We craft high-quality native mobile apps using React Native, and back it up with real numbers: Eatzon's booking platform went from web to iOS and Android in under 4 weeks. Whether it's a startup idea or a complex enterprise rebuild, we turn concepts into smooth, engaging applications - without the wait.
At Dev and Deliver, we specialize in turning your app idea into a successful product on iOS and Android. React Native is our core framework - it's what let us migrate Eatzon's restaurant-booking platform from web to iOS and Android in under 4 weeks, and move TFS Compliance's fire-safety platform to React Native in 2 months (we then kept building on it for 2 more years). We're no strangers to native Swift or Kotlin when a project calls for it, but React Native is where we've built our deepest expertise.
Check out this mobile app case study!
We create powerful, high-performing mobile applications built with React Native. Why React Native? Because it allows us to deliver apps that feel genuinely native while being cost-effective and efficient. Whether you’re looking to build for iOS, Android, or both platforms, we ensure seamless performance, stunning design, and a user experience that stands out. Your vision, turned into reality, one tap at a time.
Modernizing your React Native app isn’t just about staying current - it’s about unlocking its full potential. We’ll take care of updates, improve performance, and ensure compatibility with the latest technologies. Whether it’s migrating to a newer architecture or integrating advanced features, we handle the heavy lifting so your app stays ahead of the curve.
We migrate existing apps to React Native - one codebase, two fully functional apps for iOS and Android. We did this for TFS Compliance, a fire-safety platform used across the UK and UAE: migrated their legacy app to React Native in 2 months, then kept building on it for 2 more years. It's efficient, cost-effective, and future-proof, with faster updates and easier feature rollouts once you're on one codebase.
We offer top-notch design services for applications. Crafting not just the look, but the soul of your app, we focus on creating intuitive, user-friendly experiences that feel just right. Whether you’re building customer-facing tools or internal apps for your team, we’ve got you covered. Struggling with an existing design? Our UI/UX audits dive deep into your app, revealing ways to make it more engaging, easier to navigate, and primed for higher conversions. Let’s shape something extraordinary together.
Already have an app but need a reliable API to power it? We specialize in crafting robust backends that serve as the backbone of your app, ensuring seamless performance and scalability. Whether or not we’re responsible for the frontend, we deliver APIs that integrate effortlessly, grow with your needs, and keep everything running smoothly behind the scenes. No bottlenecks, no hiccups - just pure efficiency.
Your app deserves to make a great first impression. Before it hits the app stores, we rigorously test every feature, flow, and interaction to ensure it performs exactly as intended. Bugs? Glitches? We hunt them down relentlessly. From usability to performance, we leave no stone unturned, so your users experience nothing but seamless functionality from day one.
Planing
strategy development / time & cost estimation / target audience identification / competitive analysis
Wireflows, prototypes and UX/UI design
wireframing / prototyping / usability testing visual research / style guides / final app design
App development
app development / backend development / API integration
Testing & launch
phone/system compatibility / mobile screen resolution tests / code optimization / client’s approval
Maintenance & support
updating required packages / adding new features / monitoring the app for any UX issues
Ready to bring your idea to life?
Share your idea, and we’ll handle the rest. Start your project today with just one simple step!
Planning
Wireflows
UX/UI design
Development
Testing & launch
Support & maintenance
Every app begins with a clear vision. In this phase, we:
Got an app idea in the works?
Ready to bring it to life? We’re here to make it happen.
We specialise in React Native
End-to-end service
At Dev and Deliver, we focus on React Native, and we do it well. We've chosen to specialize in this framework because we believe in mastering one thing rather than jumping between Flutter, Swift and Kotlin. When you work with us, you're working with a team that's built its expertise over years, not a group of generalists - the kind of depth that took Eatzon from web to iOS and Android in under 4 weeks, and moved TFS Compliance to React Native in 2 months. Our process is streamlined and we build for the long haul - you're getting a partner who knows how to turn your mobile idea into something real.
At Dev and Deliver, we offer a real end-to-end service. From the initial concept to the final app, we manage the whole process. We begin with a deep dive into your idea. What problem are we solving? Who are we designing for? This is where it all starts. After that, our UI/UX team works to create designs that not only look great but are also functional and user-friendly. The goal? To make sure your users have a seamless experience. Then, our development team takes over, transforming those designs into a fully functional app. We make sure it works smoothly, every time. But we don’t disappear after the launch. In fact, that’s when we start maintaining your app, keeping it up-to-date and running perfectly. You don’t need to worry about coordinating with different teams. We do it all. One team, one process. Simple. Efficient. Effective. You focus on your business. We take care of the tech!
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!
Mobile app developers from Krakow, 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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