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First-release apps in 8-12 weeks. Ready for App Store review, TestFlight, and paying users. Perfect for pre-seed / seed founders.
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Mobile App Developer · United Kingdom
UK mobile app developers — from idea to App Store in weeks.
RedFin AI is a UK-based mobile app development studio. We design and build native iOS and Android apps, plus cross-platform apps in React Native and Flutter — for startups, scale-ups and enterprises. Full-service, from user research through App Store submission, with an AI-first engineering pipeline that gets you launched dramatically faster than a traditional agency.
8 weeksTypical MVP to App Store
iOS + AndroidNative & cross-platform
UK-based teamSenior engineers, UK time zone
What we build
Mobile apps for every stage of your business.
Consumer apps
Social, wellness, lifestyle, media — polished apps designed to earn a permanent home-screen slot.
Enterprise apps
Field service, logistics, sales enablement, secure comms. With MDM, SSO and offline-first sync.
Fintech apps
FCA-aligned payment, banking and wallet apps. PSD2 SCA-compliant, hardened against threats.
Healthtech apps
Patient- and clinician-facing apps. NHS DTAC-aware, GDPR + DPIA supported.
IoT companion apps
For hardware products — BLE pairing, provisioning, telemetry, OTA firmware updates.
Native or cross-platform?
We pick based on your project. Not what pays us more.
Neither native nor cross-platform is universally better in 2026. We recommend the right choice for your specific case — and we build both to a high standard.
Native (Swift & Kotlin)
Best for performance-critical UX, deep OS integrations, long-lived apps, and highly regulated sectors. Full access to the newest OS features on day one.
Cross-platform (React Native & Flutter)
Best for most MVPs, B2B tools, and consumer apps where one codebase across iOS and Android matters more than the last 5% of native polish. Faster, cheaper, excellent quality.
End-to-end mobile development
Not just the code — the whole launch.
UX & product design
Research, wireframes, prototypes. Native design systems (iOS HIG, Material 3) or custom.
Backend & APIs
Scalable cloud APIs, real-time sync, push notifications, offline-first data layers.
App Store & Play submission
Apple & Google review handled end-to-end. Metadata, screenshots, privacy nutrition labels, ASO.
QA & device testing
Automated device farms, real-device testing, accessibility audits, performance profiling.
Analytics & growth
Product analytics, attribution, A/B tests. Instrumented from day one so you launch informed.
Ongoing maintenance
OS updates, SDK bumps, store guideline changes — handled proactively, not when you're already broken.
Get started
Building a mobile app? Let's talk.
Whether it's a first-release MVP or a rewrite of a decade-old codebase — bring the brief. We'll give a straight opinion on scope, timeline and cost within a business day.
Start the conversation →