Mobile App Development
One app for iPhone and Android, built from one codebase
For most business apps, one shared codebase for iOS and Android is the fastest and most affordable route. We build with React Native or Flutter and keep native quality where it matters.
The problem
The problem this solves
Building two separate native apps means two codebases, often two teams, and every feature built twice. Releases drift apart. One platform gets a fix a week after the other. For most businesses, that doubles the cost without doubling the value.
A cross-platform app solves this with one codebase that runs on both platforms. React Native and Flutter are both mature, used in widely known apps, and able to reach most device features. The result looks and feels native to most users, and every feature ships to iPhone and Android at the same time.
The trade-offs are real but manageable. Some advanced device features need small native modules. Very graphics-heavy apps may perform better natively. We look at your requirements before recommending an approach, and we write native code for the few pieces that need it.
Choosing between React Native and Flutter depends on your team and product. React Native suits teams that already use JavaScript or React on the web, and can share logic with a web app. Flutter offers very consistent rendering and strong performance. Our comparison of React Native and Flutter explains the choice in more depth.
Whichever we choose, AI speeds up screens, API clients and tests, while our engineers focus on navigation, state management, offline behavior and how the app feels on both platforms. Our goal tracking app case study shows how we plan a mobile product from the first wireframe.
What you get
What you get
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One app, two platforms
A React Native or Flutter app for iPhone and Android from one codebase.
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Platform-aware design
Shared design with platform details, such as navigation and gestures, respected on each.
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Native modules where needed
Small native pieces for device features the framework does not cover well.
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Backend and APIs
Secure connection to your Backend, or a new backend built alongside the app.
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Offline support
Local storage and sync for users with poor connections.
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Notifications
Push notifications on both platforms, with user preferences.
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Testing on both platforms
Automated tests and checks on real iPhones and Android phones.
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Store releases
Coordinated App Store and Google Play releases, with over-the-air updates where allowed.
How we build it
How we build it
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1
Choose the framework
We compare React Native and Flutter against your requirements and team.
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2
Design
Prototypes you can try on both an iPhone and an Android phone.
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3
Build
Shared code for screens and logic, with test builds for both platforms.
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4
Test
Automated and hands-on testing across devices on both platforms.
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5
Launch
Store submissions for both platforms, released together.
AI and people
Where AI helps, where people decide
AI makes the repetitive parts faster. The decisions that shape your product stay with experienced people.
Where AI speeds things up
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Generating shared screens and components from designs.
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Writing API clients, state management and form logic.
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Producing tests that run on both platforms.
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Drafting native module code for engineers to review.
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Preparing store listings for both platforms.
Where people decide
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React Native or Flutter, based on your needs.
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Where native code is worth the extra effort.
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Navigation and interaction details on each platform.
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Offline and data sync behavior.
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When both builds are ready for the stores.
Is this right for you?
When this is the right choice
A good fit when
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You need both iOS and Android.
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The app is mostly screens, forms, lists and data.
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You want features to reach both platforms at the same time.
Consider something else when
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The app depends heavily on advanced graphics or niche hardware.
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You only need one platform and already have native developers.
Timeline and cost
What affects the timeline and cost
A cross-platform app with a core set of screens and a backend connection usually reaches both stores in a couple of months, often sooner than two native apps with the same features.
We do not publish fixed prices because scope drives cost. How we estimate.
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Screens and flows
The size of the first release is the biggest factor.
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Native features
Each feature that needs native code adds work on both platforms.
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Backend
A new backend and APIs often match the app in effort.
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Offline needs
Offline sync adds local storage and conflict logic.
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Design complexity
Custom animations and unique interactions take longer than standard components.
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Store requirements
Some app categories face stricter review on both stores.
Keep exploring
Related services, solutions and reading
Related services
View all related services- Mobile App Development iOS, Android and cross-platform apps with the backend and APIs they need, taken all the way to the app stores.
- iOS apps Native iPhone and iPad apps that feel at home on Apple devices and pass App Store review.
- Android apps Native Android apps that work well across the wide range of phones your customers carry.
- Voice AI Speech to text, call summaries and voice assistants that take bookings or answer routine calls.
- App backend and APIs The servers, databases and APIs behind your app: accounts, data sync, notifications and payments.
- App store launch Store listings, review requirements, test builds and release management for the App Store and Google Play.
Solutions
View all solutions- Scheduling automation Let customers book, change and confirm appointments themselves, by web, chat or phone, with reminders that cut no-shows.
- Receipt capture and matching Snap a receipt, and the details are read, categorized and matched to the card transaction and the right project.
- Meeting notes automation Transcribe meetings and calls, summarize decisions and push action items into your CRM or project tool.
- AI support agent An assistant that answers routine questions from your own content, checks orders and hands anything else to a person.
- Feedback analysis Read every review, survey and ticket, group them by theme and sentiment, and show what customers keep asking for.
- AI translation workflows Translate websites, products and support content quickly with AI, a shared glossary and native-speaker review where it matters.
Industries
View all industries- SaaS and startups MVPs, subscription billing, AI features, multi-tenant platforms and scaling support for founders and product teams.
- Home services Booking, dispatch, quotes, invoicing and reviews for plumbers, electricians, cleaners and other home service businesses.
- Hospitality and travel Booking sites, guest messaging, review analysis and multilingual content for hotels, tour operators and travel businesses.
Case studies
View all case studies- Goal and effort tracking app A product design built around handwritten daily proof, locked plans and honest self-scoring. The build is in progress.
- Vacation rental operations system One calendar per property, cleaning tasks created from bookings, and owner statements built from the same records.
- Beach rental booking system A long-running booking system kept earning while it was extended, tested and given a safe, gradual path to a modern stack.
Guides and articles
View all guides and articles- How long does it take to build an app? Realistic timelines for websites, web apps and mobile apps, and what speeds a project up or slows it down.
- React Native vs native apps When a React Native app is the smart choice, when native iOS and Android apps are worth the extra cost.
- React Native vs Flutter The two leading cross-platform app frameworks compared for business apps.
AI models
View all ai models- Vision and multimodal Models that read images, scans, screenshots and sometimes audio or video alongside text.
- Speech Speech-to-text and text-to-speech models for transcription, call analysis and voice assistants.
- Deepgram Nova-3 and Flux Deepgram's speech-to-text models: Nova-3 for general transcription in 60+ languages, and Flux for voice agents with built-in end-of-turn detection.
- Gemini 3.1 Pro Google's most advanced Gemini model for reasoning, software engineering and agent work, reading text, images, audio, video and PDFs. Available as a preview.
- Gemini 3.8 Flash Google's most capable Flash model, stable since September 2026, for agents, software engineering and enterprise workflows with full multimodal input.
- Mistral OCR 4.1 Mistral's document OCR model, turning pages into structured output with bounding boxes, block labels and confidence scores.
MCP servers
View all mcp serversGlossary terms
View all glossary terms- Cross-platform app A cross-platform app is a mobile app built from one shared codebase that runs on both iOS and Android.
- API An API, or application programming interface, is a defined way for one piece of software to request data or actions from another.
- Backend The backend is the part of an application that runs on servers, storing data, applying business rules and serving the frontend through APIs.
- Database A database is an organized store of data that software can search, update and keep consistent, such as customers, orders or bookings.
- Frontend The frontend is the part of a website or app that people see and use, including pages, forms, buttons and how they respond.
- Progressive web app A progressive web app, or PWA, is a website that works like an installed app, with offline use, home screen icons and notifications.
FAQ
Questions about cross-platform apps
Have a question that is not here? Ask us directly.
Both are solid. React Native fits teams with JavaScript skills and web apps to share code with. Flutter offers very consistent rendering and strong performance. We recommend one after looking at your product. See React Native vs Flutter.
For most business apps, users cannot tell the difference. We respect platform conventions and write native code for the few places where it matters.
It depends on the app, but sharing one codebase avoids building most features twice. The backend and design work stay the same either way.
Yes. Both frameworks support common device features, and native modules cover the rest. See app backend and APIs for the server side.