Discovery & Planning
Users, flows, features and constraints — scope doc, milestones and wireframes lock before build.
Mobile App Development for the United Kingdom | Android, iOS & Flutter
Looking for mobile app development for the United Kingdom? Web Developer Kashi is a Sigra studio building Android, iOS and Flutter apps when a website is not enough — retail, clinics, membership and field teams. GBP quotes. Your Apple and Google accounts stay in your name.
App work covers discovery, UI, Flutter or React Native, backends, store listing and optional AMC. See the full portfolio (India and the United Kingdom) or pair the app with a business website.
Sigra studio · United Kingdom clients
App development for the United Kingdom — what we actually ship
From our Sigra studio we ship Flutter apps to Google Play and the App Store, and keep catalogue, bookings and payments on a Laravel or Firebase backend. Your Apple and Google accounts stay in your name.
Retail & jewellery
Live on Play StoreCatalogue, live gold rates, wishlist and calculator — customers browse on phone, walk into the showroom ready to buy.
- Flutter app + Laravel API
- Google Play & App Store listing
- Push alerts for rates & offers
Clinics & operations
AppointmentsDoctor schedules, reminders, reports and staff tools so reception is not stuck on phone-and-register.
- Booking + reminder flow
- Role-based staff access
- Optional payments & reports
Stores & marketplaces
CheckoutSame catalogue on website and app — cart, checkout on the British gateway you already use, admin panel. One backend, two fronts.
- Flutter storefront + admin
- Stripe or British gateway checkout
- Orders, stock, seller panels
Our Services
App Development Services for the United Kingdom
Android to iOS — we ship one codebase to both platforms where it fits. Flutter, React Native, Firebase and Laravel backends.
Android App Development
Play StoreCustom Android apps in Flutter or React Native — Google Play listing, OTP login, notifications and optional offline support.
- Material Design UI with native feel
- Firebase FCM push notifications
- Play Store listing & publishing
iOS App Development
App StoreCross-platform apps for iPhone and iPad — Flutter, App Store guidelines, and Apple-native UX polish.
- Cupertino style UI components
- App Store review compliance
- TestFlight beta distribution
Flutter Development
Cross-platformOne codebase for Android and iOS. Flutter UI for POS, billing and field apps that feel close to native.
- Custom widget-based UI
- BLE / Bluetooth printer support
- Offline-first architecture
Firebase & Backend Integration
Realtime & APIsFirebase auth, Firestore, FCM push — or Laravel REST APIs. Payments on Stripe or the gateway you already use in Britain, plus third-party SaaS where APIs exist.
- OTP / Google / email login
- Stripe or British gateway payments
- Laravel / Node REST APIs
App UI / UX Design
Figma & wireframesHigh-clarity Figma screens — navigation, onboarding, forms, loading states. You approve before we code.
- Figma interactive prototype
- Intuitive user flows & navigation
- Brand-consistent visual design
Store Publishing & AMC
Launch & supportComplete Play Store and App Store listing — screenshots, description, compliance. After launch: crash monitoring, OS updates and optional AMC.
- Store listing & phased rollout
- Crash monitoring & OS updates
- Monthly AMC or on-demand
Technologies
Tech Stack We Use for Mobile Apps
Flutter, Firebase, Laravel and React Native — proven tools that keep the app fast, secure and maintainable.
Flutter
Cross-platformGoogle’s UI framework — one codebase for Android and iOS. Fast rendering and native-grade UX.
- Custom widget system
- 60fps smooth animations
Firebase
Realtime & authPush notifications, auth, Firestore realtime DB and crash analytics — backend without heavy infra.
- FCM push notifications
- OTP / Google / email auth
Laravel API
BackendRobust REST APIs for the app — auth, roles, payments, reports and admin panels in Laravel.
- Sanctum token auth
- Filament admin panel
React Native
JS ecosystemA fit for React web teams — same JS/TS skills, Expo or a bare workflow.
- Expo managed workflow
- JS/TS codebase reuse
Our Process
How We Build Your Mobile App
From your first message to delivery — a clear, coordinated path.
UI / UX Design
High-clarity Figma screens — navigation, forms, loading states. You review before coding.
Development & Testing
Flutter / React Native builds — sprint demos, device testing, backend integration, store QA.
Store Launch & Support
Play Store and App Store publish, crash monitoring, OS updates and optional AMC retainer.
Discovery & Planning
Users, flows, features and constraints — scope doc, milestones and wireframes lock before build.
UI / UX Design
High-clarity Figma screens — navigation, forms, loading states. You review before coding.
Development & Testing
Flutter / React Native builds — sprint demos, device testing, backend integration, store QA.
Store Launch & Support
Play Store and App Store publish, crash monitoring, OS updates and optional AMC retainer.
Why build with us?
Build Mobile Apps That Grow Your Business
We build fast, secure and scalable mobile apps that help you automate operations, engage users and increase revenue.
Cross Platform Development
One Flutter codebase for Android and iOS — less duplicate work when both stores are in scope.
Full-Stack Team
Design, development, API and admin panel — one team, not a chain of vendors.
Secure & Store-Ready
Secure architecture, data protection and Play Store / App Store policy-ready delivery.
Post-Launch Support
Crash fixes, OS updates, new features and AMC support when you need it.
Mobile app development for the United Kingdom — FAQ
Straight answers on local app development, Android, timeline, stack, store publishing, and pricing.
Yes. Web Developer Kashi in Sigra offers mobile app development for the United Kingdom — Android, iOS, and Flutter apps, Play Store and App Store publishing, Laravel or Firebase backends, and post-launch AMC for small businesses in the United Kingdom.
App development for the United Kingdom with us covers discovery, UI/UX, Flutter or React Native builds, Android app development for Play Store, optional iOS, API/admin panel, payments, and store listing. Scope is written before coding starts.
It depends on scope. A simple MVP app (login, listing, forms) often ships in 4–8 weeks; mid-complexity apps with payments, admin panel, and notifications can take 2–4 months. You get a phased plan before development starts.
Both ship Android and iOS from one codebase. Flutter is a strong fit for custom UI, POS-style, and Android-heavy workflows. React Native suits teams already using React on the web. For most Indian SMB operational apps, Flutter is our default.
Yes — store listing, screenshots, description, compliance checks, versioning, and phased rollout are handled by us. After launch, optional AMC covers OS updates, library bumps, and crash monitoring.
Scope drives cost — screens, roles, integrations, payment gateways, and offline use. After a short discovery we share a transparent estimate and milestones — no surprise invoices.
Yes — REST APIs, Firebase, Laravel backends, payment gateways (Stripe or the gateway you already use in Britain), and third-party SaaS where documented APIs exist. Sync points are designed so data stays consistent.
We’re here to help!
WhatsApp, email or a call — pick what is easy.
Related Services
Explore Our Other Services
Website, app, software, design and IT — one Sigra studio, remote delivery for the United Kingdom.
Sigra studio · remote for the United Kingdom
Need mobile app development for the United Kingdom?
Share sketches, a spreadsheet or a rough feature list — we reply with stack fit, a phased estimate and next steps. Flutter by default. GBP quote after discovery.
