React Native development
The right call when your product already lives on a React or JavaScript stack and shared logic, faster releases, and native module access all pay off.
Cross-Platform
Cross-Platform Apps Without the Compromise
One codebase can serve both stores properly when the framework is chosen well and the architecture is clean. We handle that choice, the build, real-device testing, and both launches with a single team.
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Cross-Platform
Our cross-platform expertise
Starting fresh or extending an existing product to a second platform, this is the work we cover.
Flutter development
The right call when the interface must render identically across screen sizes and platforms, with fine control over every pixel of the design.
Cross-platform UI and UX
One app that feels natural on both platforms, designed with iOS and Android behavior conventions in mind from the very first flow.
Native module integration
Payments, biometrics, sensors, and maps sometimes need real native code. We write Swift and Kotlin modules where the framework alone falls short.
QA on real devices
Layout issues, battery drain, crashes, and performance problems are checked on physical iOS and Android handsets under real conditions before launch.
Maintenance and support
A shared codebase makes updates easier, but it still needs care. We handle OS updates, store releases, fixes, and new features after launch.
Do not pay for two native teams
Tell us the app idea. We will map the right framework and feature plan, and quote a fixed USD scope before you spend anything.
Start a ProjectHow it works
Six steps to a stable dual-platform launch
- 01
Discovery and framework selection
We define goals, users, features, and platform needs, then choose React Native or Flutter on the merits of your product.
- 02
Shared component planning
Screens, flows, and reusable components are mapped before development starts, planned for both platforms from day one.
- 03
Architecture and native modules
APIs, state management, backend connections, and native modules are planned early so the build never stalls on a surprise.
- 04
Sprint development
Built in sprints with regular demos, so you watch iOS and Android take shape together instead of as two disconnected builds.
- 05
Physical device testing
Real handsets, not simulators: layout distortion, battery use, crashes, and performance under genuine conditions.
- 06
Both stores, one launch
App Store and Google Play submissions prepared together, release checks handled, and we stay on for updates and OS compatibility.
Why AIoptimix
Why build cross-platform with AIoptimix
Two live apps, one team
You do not maintain separate iOS and Android teams. One shared codebase powers both stores, which means less code, fewer divergent bugs, and faster fixes.
A meaningfully smaller budget
Building two native apps costs close to double. Cross-platform cuts that substantially without cutting quality, as long as your product does not demand heavy 3D or signal processing.
Full IP ownership
You own every line of code, with no proprietary wrappers or platform traps. You could switch vendors or go native later without starting over.
Testing beyond simulators
Simulators miss what real users hit. We verify on physical handsets across OS versions, screen sizes, and device types before either store sees the app.
Tools and stack
Our cross-platform stack
Frameworks
- React Native
- Flutter
Languages
- TypeScript
- JavaScript
- Dart
Data
- SQLite
- PostgreSQL
- GraphQL
- REST APIs
Cloud
- AWS
- Google Cloud
- Firebase
- Node.js
- Python
Engagement models
Pick the model that fits.
Staff Augmentation
Vetted engineers who join your team, work your hours, and follow your workflow.
Learn more →Dedicated Teams
A complete unit with delivery management that owns your product end to end.
Learn more →Fixed Price
A written scope, a fixed USD quote, and a committed timeline before we start.
Learn more →FAQ
Frequently asked questions.
Will a cross-platform app feel as smooth as native?
For almost every business app, yes. Modern frameworks compile to native code or talk directly to the operating system, so scrolling, animations, and touch response stay fluid. The exceptions are heavy 3D and real-time signal processing, and we will tell you honestly if your product is one of them.
How much cheaper is cross-platform than two native builds?
Meaningfully cheaper, because one team builds and maintains one codebase instead of two parallel ones. The exact saving depends on your feature set, which is why we scope first and give you a fixed USD figure rather than a marketing percentage.
Who owns the source code and IP?
You do, entirely. Repositories, design files, cloud accounts, and documentation are yours under the written engagement, agreed before work begins. Your app stays a clean, independent business asset.
What happens when Apple or Google update their operating systems?
We stay involved. Annual OS releases can break older app behavior, so we handle framework upgrades, dependency fixes, and store compliance updates as part of ongoing support, quietly and before your users notice anything.
Can you take over a cross-platform project from another team?
Yes, and we start with a full technical audit of the existing code: security, stability, and structure. You get an honest report on what is solid and what needs work, then a written plan, so your existing investment is preserved rather than thrown away.
Related
Keep exploring.
React Native Development
A deeper look at our React Native practice for JavaScript-stack teams.
Learn more →Hybrid App Development
Shared-codebase builds with native modules where the product demands them.
Learn more →Android App Development
Fully native Kotlin engineering when platform depth is worth the investment.
Learn more →One build, both platforms
Describe your app through the contact form and we will come back with a framework recommendation and a fixed USD quote.
Start a Project