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Intelivita is a hybrid app development company in the UK, building scalable applications for iOS and Android from a shared codebase. We primarily use Flutter for hybrid app development, with React Native available when required.
As a full-lifecycle app development partner, we handle design, development, launch and support.
REACT NATIVE • JAVASCRIPT • SHARED CODEBASE
We build custom Flutter applications for businesses that need one product across iOS and Android. From developing a new app idea to replacing separate platform builds, we handle requirements, UX/UI design, development, testing and app-store launch. Using Flutter and Dart, we create a shared codebase while addressing the functionality and experience expected on each platform.
REST APIs • GRAPHQL • THIRD-PARTY SDKs
We provide React Native app development when it suits your product requirements or already used within an existing product. Whether you are starting a new application, extending an existing React Native product, or continuing a partially developed app, our team supports UX/UI design, development, integrations, testing, deployment and ongoing enhancements across iOS and Android.
CODE REFACTORING • FRAMEWORK MIGRATION • FEATURE PARITY
We migrate existing native and cross-platform applications to Flutter or React Native. Whether you want to bring an iOS-only product to Android, expand an Android app to iOS, or replace separate native applications with a shared codebase, we assess the existing product and plan the transition carefully. We preserve essential features, data and integrations while modernising the application for both platforms.
FRAMEWORK UPGRADES • SDK UPDATES • COMPATIBILITY
We develop and integrate REST APIs, GraphQL, WebSockets and third-party SDKs to connect Flutter and React Native apps with back-end systems and databases. This can include payment gateways, maps, authentication, analytics, chat and notification services. We also handle data mapping, error handling and secure authentication to ensure information moves reliably between the app and connected systems.
FRAMEWORK UPGRADES • SDK UPDATES • OS COMPATIBILITY
We upgrade Flutter and React Native applications to the latest stable framework versions and update their packages, plugins, SDKs and build configurations. We also add new features, improve existing functionality and integrate additional services as your product evolves. Our team resolves deprecated code and iOS or Android compatibility issues before testing and preparing the updated app for release.
OS UPDATES • BUG FIXES • PERFORMANCE MONITORING
We provide continued support after launch to keep your hybrid application stable, secure and up to date. This includes fixing defects, investigating crashes, improving performance and addressing compatibility issues as Apple and Google introduce platform changes. As your product evolves, we can also add new features and integrations to support changing user needs, business operations and product requirements.
DESIGN SYSTEMS • RESPONSIVE UI • INTERACTIVE PROTOTYPES
Create an app experience that feels intuitive on both iOS and Android. We plan user journeys, wireframes and interactive prototypes before creating responsive interfaces and reusable design systems for Flutter and React Native. Our designers account for platform conventions, screen sizes and touch interactions so a shared product still feels appropriate on each platform.
Tell us about your app idea, existing product or next development phase. We’ll review your goals, users and essential features, then outline a practical scope, delivery approach, timeline and estimated cost—with no obligation to proceed.
Develop and release your product across both major mobile platforms without managing two completely separate projects.
A shared codebase allows common features, integrations and application behavior to be developed once for both platforms.
A shared codebase lets teams manage fixes, upgrades and feature changes from one source, reducing overhead and technical complexity.
Maintain consistent branding, functionality and user journeys while still addressing platform-specific requirements where necessary.
Requirement Analysis and Project Planning
UI/UX Design & Prototyping
Cross-Platform Development & Integration
Testing & Quality Assurance
App Store Deployment & Post-Launch Support
Build applications for iOS and Android from a shared codebase using modern cross-platform frameworks and their supporting languages
Connect hybrid applications with scalable backend systems, databases and existing business platforms.
Extend Flutter and React Native applications with third-party services and platform-specific functionality.
Integrate Firebase services for authentication, real-time data, cloud functionality and app monitoring.
Integrate payment gateways and authentication services to support secure transactions and user access.
Integrate push notifications for transactional messages, user engagement and real-time app updates.
Track app usage, crashes and performance to identify issues and support ongoing product improvements.
Support reliable Flutter app delivery with scalable cloud infrastructure and automated development and deployment workflows.
“After speaking with 50 + agencies, choosing Intelivita was the best decision we made.Their mobile app development expertise and continuous support.”
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“Intelivita developed our mobile apps and website exactly as planned. The quality of the build and the consistent day-to-day support have made a real difference to our business”
Tell us about your idea, existing product or next phase. We'll review your goals, users and essential features, then outline a practical scope, delivery approach, timeline and expected cost with no obligation to proceed.
