One TypeScript codebase, two native apps, weekly releases. A React Native development company for products that need to move fast without doubling the engineering surface — and pass a mobile pentest before launch.
React Native is our default for most mobile products: it shares logic and often UI with a Next.js web app, ships over-the-air updates with Expo, and gives you one team instead of two. Evosec has built React Native apps for fintech onboarding, marketplaces, field-service and health for clients in France, the United States and Tunisia.
The catch with cross-platform is that security mistakes ship to both stores at once — so every build goes through our OWASP MASVS mobile pentest before submission.
Managed workflow where it fits, bare where it doesn't; EAS Build/Submit/Update for CI and over-the-air releases.
TypeScript models, validation and API clients shared with your Next.js app; design tokens shared across platforms.
Swift/Kotlin modules when you need camera pipelines, Bluetooth, NFC, background tasks or platform SDKs.
Local database, conflict resolution and background sync for apps that must work with no signal.
Keychain/Keystore storage, certificate pinning, biometrics, obfuscation, secure deep links and an OWASP MASVS pentest.
App Store / Play Console submission, privacy labels, phased rollouts, crash and performance monitoring.
A cross-platform MVP typically costs $25,000–$60,000 (≈ 23k–55k €) and ships in 8–14 weeks, including the pre-launch mobile penetration test. Larger apps with native modules, offline sync or regulated data are scoped individually.
React Native when your team knows React/TypeScript or you share code with a web app; Flutter for pixel-identical, animation-heavy UI. See our Flutter page for the other side.
Yes, when built correctly: secure storage, pinning, biometrics, RASP where needed, and a pentest. We've shipped React Native apps that passed bank security reviews.
Yes — audit first (code + security), then stabilise, upgrade React Native/Expo versions and continue development.