App development with React Native
One codebase for iOS and Android – in TypeScript, with real native components.
React Native is the right call when your team already knows React or a web product exists: you share logic, types and design system instead of building them a second time.
Why React Native?
React Native is an open-source framework by Meta. The interface is made of real native components, driven from TypeScript – so your users get the platform's look and feel rather than a recreation of it.
Your web knowledge counts twice: React developers get up to speed quickly; native builds, Xcode and provisioning remain their own subject, which we cover. Business logic, API types and design tokens are shared with your React web app instead of maintained twice.
Updates without store review: changes in the JavaScript layer can ship over the air. A bugfix reaches users in hours instead of only after the review wait.
An ecosystem that covers most of it: there are well-maintained libraries for maps, payments, camera and push. Where something is missing, we write the native module ourselves.
Our React Native services
From concept to operations: we take on the full lifecycle of your React Native app – or strengthen your existing team with our expertise.
React Native app development
Native modules & platform APIs
Web and app from one design system
OTA updates & release process
UI/UX & performance
Consulting & team extension
The advantages of React Native
React Native plays to its strengths wherever React know-how or a web product already exists:
One team for web and app
Your React developers contribute to the app without switching language. Business logic, API types and validation live once in the repository and apply to both products.
Real native components
React Native renders the platform's own building blocks. Scrolling, text fields and accessibility behave the way iOS and Android users expect – no recreation needed.
Fixes without store waiting time
We fix defects in the JavaScript layer via over-the-air update. That shortens the gap between report and fix considerably – especially in the hot phase after launch.
Large ecosystem, less bespoke work
Proven packages exist for most requirements, which lowers effort – but we check every dependency for how well it is maintained before it enters your project.
Not sure whether React Native or Flutter fits your project better?
Short version: React Native when React know-how or a web app already exists. Flutter when a highly bespoke, animation-heavy UI leads. In a free first call – with us in Cologne or over video – we place that for your specific case. Including when the honest answer is native development.
Success stories
with measurable results
GUTEFRAGE.NET / HIGHFIVVE
Largest German-language question-and-answer portal
Anyone looking for an app development agency will be delighted with Johnny Bytes. We held a workshop with gutefrage.net on the topic of apps and app SDKs and had a very in-depth and detailed exchange. The knowledge and experience that Johnny Bytes brings to the table is remarkable.
Nepomuk Seiler
JUST HEALTH GMBH
Therapy management platform for leading German cancer centres
Johnny Bytes was a complete game-changer for our digital health app. Their expertise is outstanding; they got up to speed in record time and drove our development forward with decisive technical insights. We absolutely recommend them for any complex app project.
Maximilian Roederstein
EMPOWER GMBH
World-leading provider of Microsoft Office applications
In the development of our software suite, we faced complex challenges. Johnny Bytes provided more than just strategic advice; they actively supported our development process and were decisive in its successful execution.
Stephan Kuhnert
APOTHEKE LUX 99
Leading pharmacy for medical cannabis
We wanted more than just an off-the-shelf e-prescription app; we needed a solution perfectly tailored to our pharmacy's specific workflows. Johnny Bytes' expertise in digital health was clear as they understood and executed our vision in perfect detail. The result is our very own app, which is a tremendous asset for both our customers and our team. For anyone seeking a truly custom solution, you've come to the right place.
Tobias Loder
READFY
Pioneer and leader in ad-supported e-book readers
With Readfy, up to half a million users regularly read over 130,000 ebooks for free. Johnny Bytes took over the apps for iOS and Android from our previous nearshore partner and not only brought them and the backend up to date in a very short time, but also ensured that in-app sales increased by 500%.
Philipp Ortmaier
PAGOPACE
Leading provider of NFC payment rings.
We were already able to offer our customers good hardware with our payment ring. However, Johnny Bytes helped us to build the perfect complementary software to take our product to the next level. We were kept up to date at every stage of the app development and were able to make requests immediately. With the new app, we can also sell our rings in retail stores, as customers can link their rings directly to their payment card on their cell phone.
Steffen Kirilmaz
FIRST AVENUE
#1 media house in South Tyrol
Johnny Bytes has taken over the development and support of our guest information system TIPPTHEK and migrated it to a modern and sustainable architecture in a very short time. This allows us to install TIPPTHEK in thousands of South Tyrolean accommodations and provide up to 35,000 tourists a day with personalized information about their accommodation and the surrounding area.
Michael Hölzl
STAZZLE
Innovative solutions for temporary staffing and recruitment
An agile team for whom customer satisfaction is just as important as quality, the Johnny Bytes team understands communication and requirements, asks the right questions, has a sense of humor and adheres perfectly to schedules. A strong partner that we recommend without reservation. Thank you for your support!
Tasso Mitsarakis
KOOPERATIONEN MIT HOCHSCHULEN
Innovative projects with research institutions
Together with Johnny Bytes, FH Aachen regularly conducts practice-oriented research projects as part of the Digital Lab. Most recently, prototypes for Alexa skills and AI-supported tourism solutions were created in this context. These projects are always an enrichment for our students, the university and the company.
Prof. Dr. Mathias Eggert
No time for second tries?
Discuss your idea in a non-binding and free consulting meeting.
Your personal contacts
Would you rather talk to us directly and in person? Then do not hesitate to get in touch with us.
