Mobile App Development Bristol.
iOS and Android apps for Bristol businesses — built to a fixed price, delivered on time. We write purpose-built mobile software using Swift, Kotlin, React Native and Flutter, from MVPs to full production platforms.
Mobile apps we build for Bristol businesses.
Bristol's aerospace, creative tech, sustainability and fintech sectors generate specific requirements for mobile software. We work across all these use cases at fixed price.
Consumer & Marketplace Apps
App Store and Google Play apps with user authentication, in-app purchases, push notifications, and social features. From MVP to full launch — fixed price from £12,000.
Internal & Field Worker Tools
Apps for your team in the field — logistics tracking, inspection forms, inventory management, offline-first design. Works with or without internet connectivity.
Startup MVPs
Lean, testable mobile products to validate your idea before full investment. Our MVPs typically launch in 8–12 weeks from £8,000 — enough to get real user feedback.
React Native & Flutter Apps
Share 85–95% of code between iOS and Android with React Native or Flutter. Near-native performance, lower cost, faster iteration — the smart choice for most business apps.
Performance-Critical Native Apps
When your app needs full hardware access — camera, sensors, AR — or demands the absolute best performance, we go native. Swift for iOS, Kotlin for Android.
IoT & Connected Device Apps
Companion apps for hardware, Bluetooth integration, sensor data visualisation and remote device management. We've built logistics trackers and real-time fleet dashboards.
Native and cross-platform development.
We choose the right platform for your goals — not the one easiest for us to build.
iOS Development (Swift / SwiftUI)
Native iPhone and iPad apps built with Swift 5 and SwiftUI. Full access to platform APIs — camera, HealthKit, ARKit, CoreLocation, Face ID. Best UX on Apple devices. App Store submission included.
- Swift 5 / SwiftUI (modern) or UIKit (when needed)
- Apple Sign-In, Push Notifications, StoreKit
- App Store submission and TestFlight beta
- RevenueCat for subscription billing
Android Development (Kotlin)
Native Android apps built with Kotlin and Jetpack Compose. Material 3 design, full Android hardware access, Google Play submission. Production-ready from first release.
- Kotlin / Jetpack Compose
- Google Sign-In, FCM Push, Play Billing
- Google Play Console submission
- Material You / Material 3 theming
React Native (Cross-Platform)
One codebase, both platforms. React Native with Expo gives you iOS and Android from shared JavaScript/TypeScript — 85–95% shared code, near-native performance for most use cases.
- React Native + Expo (managed or bare workflow)
- Firebase, Supabase, RESTful API integration
- RevenueCat subscriptions, Stripe payments
- OTA updates without App Store re-approval
Flutter (Cross-Platform)
Google's Flutter framework with Dart. Excellent performance, highly consistent UI across iOS and Android, growing ecosystem. Our go-to for UI-rich business apps.
- Flutter 3 / Dart — material and cupertino widgets
- Riverpod / Bloc state management
- Firebase, Supabase, REST/GraphQL
- Custom animations and advanced UI
Fixed-price mobile app development.
Every project is quoted at a fixed scope and fixed price — no hourly billing, no surprise costs.
Simple App / MVP
£8,000–£20,000
8–12 weeks · Single platform (iOS or Android) or cross-platform MVP · User auth, core feature set, backend API, App Store submission
Full Business App
£25,000–£60,000
12–20 weeks · Both platforms · Custom backend, third-party integrations, admin dashboard, subscription billing, analytics
Complex / Enterprise App
£60,000+
6–12 months · Multi-platform · Real-time features, offline sync, IoT integration, ERP/CRM integration, compliance architecture
Bristol mobile app development FAQ
How much does mobile app development cost in Bristol?
Mobile app development for Bristol businesses starts from £8,000. Creative tech and sustainability apps often benefit from thoughtful UX investment, bringing mid-range projects to £20,000–£35,000. Fintech and aerospace-adjacent tooling with compliance needs can reach £40,000–£60,000. Mantar Tech provides fixed-price quotes — honest, upfront, no surprises.
Can you build sustainable tech or green economy apps for Bristol clients?
Absolutely. Bristol is one of the UK's leading cities for green economy and clean tech innovation. We've helped clients build data platforms, reporting dashboards and customer-facing apps that serve sustainability-focused businesses. The tech stack is the same — the mission is different and we embrace it.
React Native or Flutter — which is better?
Both are excellent for most business apps. React Native suits teams already using JavaScript/React — it has a larger ecosystem and easier web integration. Flutter is Google-backed with exceptional UI consistency and animation control. We'll recommend the right one for your project during discovery. We've shipped production apps with both.
Can you take over a mobile app someone else started?
Yes, with conditions. We always review the existing codebase first. If the architecture is clean and maintainable we can take it over. If there are serious structural issues we'll flag them honestly before committing. We'll never hide a problem to win a project.
Do you handle App Store and Google Play submissions?
Yes — App Store (iOS) and Google Play (Android) submissions are included in the project scope. We manage the submission process, respond to reviewer questions and guide you through any App Store review feedback.
Do I own the source code?
100% ownership of all source code, assets and intellectual property transfers to you on completion. You receive Git repository access from day one and can take development elsewhere at any time — zero lock-in.