Recorded client call
“I find him very nice to work with and he actually delivers a very good quality. So I am really happy with him.”
Noa van der Veen · Strategy and operations, CheckyPro

Cross-platform delivery
We build React Native apps for AI products that need to perform on real devices: iOS and Android from one senior team, with native modules where they are the honest engineering choice.
Certified partnerships
Rated by clients and team
What you get
Device integrations, poor networks, store rules, background behaviour, and release operations are part of the build from day one.
React Native and TypeScript for shared iOS and Android delivery, with native Swift or Kotlin modules where the product genuinely needs them.
Streaming responses, camera and voice inputs, model fallbacks, secure API access, and on-device inference where latency or privacy demands it.
HealthKit, Health Connect, Bluetooth devices, camera, location, biometrics, notifications, and background tasks engineered against real hardware.
Local persistence, queued writes, conflict resolution, retry policy, and visible sync states for products that cannot assume perfect connectivity.
Apple Pay, Google Pay, Stripe, StoreKit, Google Play Billing, entitlement handling, and receipt validation without brittle payment logic.
Signing, TestFlight, internal tracks, staged rollout, crash reporting, review preparation, and the release runbooks your team keeps.
Engineering approach
One team and one product codebase where it improves speed without compromising the experience.
Swift or Kotlin modules for device APIs, performance-critical paths, and platform-specific behaviour: not ideology.
Simulators are useful, but camera, biometrics, background jobs, Bluetooth, and poor networks are validated on hardware.
From prototype to store
Every build is tested on physical devices. Camera access, biometrics, Bluetooth pairing, push notifications, background sync: validated against real hardware before a reviewer ever sees it. Your TestFlight and Play Console tracks belong to you from day one.
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Delivery
We define OS support, device permissions, backend contracts, AI behaviour, offline requirements, analytics, and store constraints before design locks.
Accessible iOS and Android interaction patterns, navigation, loading and error states, and prototypes tested on representative screen sizes.
Two-week delivery increments, automated tests, device-matrix QA, performance profiling, and beta builds your stakeholders can use throughout.
TestFlight and Play testing tracks, store submission, staged production rollout, crash monitoring, analytics validation, and 30 days of launch support.

Real devices. Real networks. Real users.
Fit
Related services
A fixed-scope route from product definition to an iOS and Android production launch in your infrastructure.
Explore service →A dedicated mobile product pod for an evolving roadmap, regular releases, and post-launch growth.
Explore service →APIs, data models, AI orchestration, and infrastructure built to support the mobile product in production.
Explore service →Testimonials
Verbatim quotes from teams we shipped to production. We publish testimonials with written sign-off on file.
4.6/5across 58 verified client reviews.Read them all at source
Direct answers about React Native, native code, store submission, ownership, and delivery cost.
For most product apps, a shared TypeScript codebase gives materially faster delivery and keeps iOS and Android behaviour aligned. We do not pretend every problem belongs in JavaScript: native modules are the right answer for some device APIs and performance-critical paths.
Talk to the people who will scope the device constraints, build the app, and take it through store review. We have shipped 180+ products since 2019.