DevBit

Expo & React Native apps — from idea to App Store.

iOS & Android from one codebase. Expo and React Native are our core expertise — from first prototype through App Store review to long-term maintenance.

Expo expertise

What Expo expertise means in practice

Expo and React Native are not one stack of many for us — they are our core expertise. One codebase for iOS and Android, native modules where a platform demands them. In concrete terms, that covers:

EAS builds & releases

Automated build and release pipelines with Expo Application Services (EAS): reproducible builds, signed artifacts and staged rollouts to TestFlight, the App Store and Google Play.

Over-the-air (OTA) updates

With EAS Update we ship fixes and improvements directly to users' devices — within store policies, with rollback strategies, without waiting for a new store review.

App Store & Play Store compliance

Privacy labels, data-safety forms, account-deletion requirements, review guidelines: we prepare submissions so apps pass review — and stay compliant as the rules change.

Performance profiling

We profile on real devices — startup time, rendering, lists, images and native modules — and fix the causes, not the symptoms.

Read more: React Native performance optimization

MVP for startups

React Native MVP development for startups

Start small, scale later: a first version that is production-ready from day one — not a prototype you will have to throw away.

Your MVP — focused scope, honest advice

We help founders cut the first version down to what actually proves the product, then build that part properly: one codebase for iOS and Android, senior-led from the first commit.

  • Scope session: what your first version really needs — and what can wait
  • Production-ready Expo/React Native app for iOS & Android from one codebase
  • App Store & Play Store submission and review handled for you
  • An architecture that grows with you — adding features later, not rebuilding
  • Complete handover: onboarding, documentation, deployment — no lock-in

Founder looking at funding? Our consulting pillar covers idea-to-product guidance and funding applications (Austria/EU). Explore consulting

Production-ready, not prototype

An app that survives App Review is engineering.

A web demo can be vibe-coded in a weekend — an app that survives App Review, privacy labels and three OS updates is engineering. We use AI every day, with engineering discipline: AI speeds up our work, senior engineers own every release.

  1. Idea & prototype
  2. App Store review
  3. Privacy labels
  4. OS & SDK updates
  5. Stable in production
  • Validated your idea with AI tools? Great — we make it production-ready.
  • Every line is reviewed, tested and owned by senior engineers.
  • No platform dependency: established open-source stacks, complete documentation.

Middle East & Gulf

Why teams in the Middle East work with us

From Cairo to the Gulf: clients come to us for European engineering standards with a direct, fast line of communication — in English, on WhatsApp.

  • EU contract & GDPR jurisdiction — an Austrian company as your legal counterpart
  • Documented security practice: architecture reviews, testing and audit-friendly engineering
  • No factory rotation — the senior engineers who start your project stay on it
  • Fast WhatsApp replies: on business days we answer within 24 hours
  • We take on projects below classic agency minimums — start small, scale later

WhatsApp first

The easiest way to start is a simple WhatsApp message. Tell us what you are building — we will reply honestly with how we can help, and what we would advise against.

Message us on WhatsApp

Selected work

We don't name clients — and your competitors will never hear about you from us. What we can show: the industries and problems we have solved.

Healthcare

Health apps for a wide range of use cases

A wide range of use cases in the health space — all involving sensitive data and privacy requirements that allow no compromise.

E-commerce

E-commerce for wholesale and retail

Grown shop and inventory processes with lots of manual work slowed down daily business.

FAQ

Why Expo and React Native?

Because one codebase for iOS and Android means faster development, lower maintenance and releases that reach both stores at the same time. The ecosystem is backed by Meta and a large open-source community, and it powers apps of some of the world's best-known companies. Expo adds professional build, release and over-the-air update tooling on top. We chose this stack deliberately — and where a platform needs native capabilities, we integrate native modules.

How long does it take to build an app?

It depends on scope: a focused MVP with a few core features can be ready in a matter of weeks, while larger apps take several months. App Store and Play Store review add time at the end — we plan for it and manage it. Because iOS and Android share one codebase, nothing is built twice. You get a realistic timeline together with the concept, before development starts.

Do you handle App Store submission and review?

Yes, end to end: developer accounts, store listings, screenshots, privacy labels and data-safety forms, plus the submission itself. If a review comes back with questions or a rejection, we respond and resolve it until the app is approved. After launch we keep the app compliant with new OS versions and changing store rules.

Can we start with an MVP and scale later?

That is exactly how we prefer to work. We help you cut the first version down to what proves your product, and we build it on an architecture that can grow — so scaling means adding features, not rebuilding. Start small, scale later is how many of our client relationships begin. And the handover is complete at every stage — documented, with no platform dependency.

Do you work with clients in Egypt and the Gulf?

Yes — we work with clients across the Middle East in English, with WhatsApp as the primary channel. You get an EU contract under GDPR jurisdiction, documented security practice and senior engineers who stay on your project. Time zones are close to Central Europe, so collaboration happens in real time. We also take on projects below the minimums of classic agencies.

Start a project

Tell us briefly what you need — your message lands directly with the people who build your project.

WhatsApp — the fastest way

A quick question, a small project, or just want to start simple? Message us directly.

Chat on WhatsApp

Email

office@devbit.at

Replies on business days within 24 h.