cross platform App
cross platform

Best Cross-Platform
App Development Company in USA.

Simpalm is a leading cross-platform app development company in the USA, with more than a decade of experience. We make use of modern-day cross-platform tools & technology to build high-performance hybrid mobile apps. With the use of the latest advancements in cross-platform logic and new tools in the market, we guarantee native-like app performance.

Our enterprise-grade cross-platform app development guarantees unified performance through a unified and optimized codebase. We have a robust team of skilled developers to scale your market outreach to diverse audiences while maintaining the native-like experiences across Android, iOS, and web platforms.

With expertise in cross-platform development, Simpalm is now a leading name in the US and across the globe. So, if you are planning on developing a cross platform app, reach out to us today for a free consultation.

Social app development

What are the Benefits of Cross-Platform App Development?

Lower Development Cost

With the use of a single unified codebase, the overall development cost for building cross-platform apps reduces by around 30–40% when compared to native app development.

Faster Time-to-Market

Cross-platform app development speeds up product deployment using a single codebase across iOS and Android platforms, supporting quicker launches and improved responsiveness.

Reach Out to Both iOS & Android Users

No more building different apps for different users across multiple platforms. Cross-platform development enables your app to run seamlessly on both Android and iOS users, boosting user acquisition and business outreach.

Simplified Updates & Maintenance

Being built as a single codebase, cross-platform apps can be maintained with fewer complexities. Faster maintenance, bug fixes, and updates can be executed and deployed faster.

Consistent UX Across Devices

Cross-platform apps can maintain the same performance while delivering consistent UI/UX across multiple platforms. A unified UX ensures a consistent experience across different platforms, maintaining brand relevancy.

Easy Scalability and Feature Expansion

Building a cross-platform app makes it easier to scale and add new functionalities as business needs evolve. CI/CD and modular architecture help teams scale efficiently.

Our Cross Platform App Development Process .

1. Discovery and Ideation

At Simpalm, we conduct thorough market research and competitor analysis to ensure your business idea is relevant in the market. Following that, we will be providing you with a cross-platform mobile app development strategy with a clear overview of market trends, opportunities, user preferences, and KPIs across iOS, Android, and web platforms.

Cross platform app development process

2,500+

Intelligent Mobile Apps &
Digital Products Delivered

100+

Mobile Apps Development &
AI Solutions Provider Awards

1200+

Global Brands & Startups Trust
Our AI-Driven Mobile Solutions

15+

Years of Proven Success in the
Industry

250+

In-house AI, Cloud, Web, and
Mobile Experts

Why Choose Us for Cross-Platform App Development?

Faster Development

We make use of modern-day tools, technologies, and frameworks for our cross-platform app development services, ensuring faster development and quick deployment.

Broader Platform Outreach

Our developers will help you build a high-performance cross-platform app that can make your business cater to a larger audience base across Android, iOS, and web platforms.

Guaranteed App Performance

At Simpalm, we make use of advanced compilation and rendering engines, backed with platform-driven optimization techniques to ensure your app delivers native-like performance across all devices.

Flexible Development Process

Our team of cross-platform app developers adheres to agile methodology for encouraging flexibility in the process. We further use the cross-platform efficiency to make quick iterations and launch updates faster for all platforms.

High Code Quality

We adhere to robust app development practices and use leading frameworks like React Native or Flutter to ensure top-tier code quality for your project. Following that, our experts also take priority care for writing clean and maintainable code for your cross-platform app.

Post-Launch Support

As a leading cross-platform app development company, we don’t just focus on building a high-performance cross-platform app, but also extend our post-launch services to maintain it with bug fixes, updates, and feature enhancements in the long run.

Talk to Our Experts Today to Shape
Your Next-Gen App Strategy !

Our Cross Platfrom App Development Services.

UI/UX

UI/UX Design for Multi-Device
Experiences

Our UI/UX design team is always focused on delivering apps that not just look great but are also responsive and easy to use, irrespective of the device or usage scenarios.

Custom app

Custom Cross-Platform App
Development

We have proficient cross-platform app developers to take on your customization requests and build a tailored product to stand out in the market.

kotlin

Backend Development & API
Integration

We build secure & scalable backend infrastructure and integrate APIs that can enhance your app functionality and also provide seamless connectivity.

Web app

Cross-Platform Testing &
Quality Assurance

We conduct comprehensive cross-platform testing for your app by evaluating its performance across all devices and platforms. Our team will fine-tune the codebase to ensure speed, responsiveness, and stability.

Backend

App Deployment, Maintenance
& Support

We will be submitting and deploying your app to Google’s Play Store and Apple’s App Store while ensuring their guidelines are met. Following that, we will be offering ongoing maintenance and timely updates to ensure consistent performance of the app.

Which is the Best Framework for Cross-
Platform App Development?

Stay Legally Compliant

React Native App Development

React Native is the most advanced and trending tool in the market for cross-platform apps. We build native-like apps using the React Native framework. 80% of cross platform apps are built using React native. We design a rich mobile user interface using declarative components and JavaScript libraries that render much faster to give a native experience. Click on the link to get more information about our React Native experience.

Reach a Wider Audience

Flutter App Development

Flutter has been developed and supported by Google. It is great when you want to build a web app and a mobile app together with the same features. The advanced features of Flutter encourage businesses to expand their application development limits. Click here to learn more about what we can do for you using the Flutter framework.

Improve SEO & UX

.NET MAUI Development

.NET MAUI (Multi-platform App UI) is Microsoft’s latest cross-platform framework, enabling developers to build native apps for iOS, Android, macOS, and Windows using a single .NET codebase. It has replaced the Xamarin framework. It is used by companies and team who are on .Net Stack. With .NET MAUI, businesses can efficiently develop and deploy high-quality apps that deliver a consistent user experience, all while reducing development time and costs.

Our Tech Stack Cross-Platform App
Development.

Frameworks & Languages

Flutter

Flutter (Dart)

React Native

React Native
(JavaScript/TypeScript)

Android Studio

Ionic

Xcode

.NET MAUI (C#)

Backend & APIs

Swift

Node.js

Objective-C

.NET Core

java

Java (Spring Boot)

Python

Python
(Django/FastAPI)

Kotlin

REST/GraphQL

Tools & DevOps

Mysql

Fastlane

SQL

Codemagic

Firebase

Bitrise

MongoDB

GitHub Actions

Oracle

Appium

Oracle

Detox

What Our Client Say About Us.

Advanced Technologies We Use to Enhance
Cross-Platform App.

AI & ML

AI & Machine Learning

Your cross-platform app, built by Simpalm, will be powered with AI/ML capabilities, helping you derive insights about user preferences and take appropriate action to improve the overall app experience.

Voice Command

IoT Connectivity

Our team facilitates IoT connectivity with your cross-platform app, enabling seamless connection to fitness trackers, factory sensors, and home assistants.

AR & VR

AR/VR Capabilities

We can now integrate modern-day AR/VR features into your cross-platform app, implementing an immersive experience for users. For instance, you can consider adding interactive games, training simulations, and virtual try-on features.

Blockchain

Cloud Computing

By leveraging the cloud for cross-platform development, we can easily scale & adjust your app when your needs or user demands grow. Following that, we also help with cloud migration in a cost-effective and flexible manner.

Why is Cross-Platform Being Used for the Majority of Mobile App Development?

Choose Simpalm for android app
  • iconCross-platform frameworks have become very robust and can build near-native experience apps. React Native, Flutter and .Net MAUI are a few frameworks, backed with sophisticated tools for minimizing performance gaps in your mobile app.
  • iconOverall cost to develop a cross-platform app is less when compared to native app development. As a single app is built over two different native apps to run on both iOS and Android platforms, the cost of hiring separate teams and testing or maintaining two apps is saved.
  • iconWith the advent of AI code generation, react native UI can be coded faster. AI tools can be used for generating basic app components, translating design elements into code structures, and offloading some UI coding efforts.

Who Do We Work For.

startup

Startups

We provide focused cost-effective expertise so a Startup can hit the ground running before hiring an in-house development team.

established

Established Companies

Simpalm acts as a force multiplier, either augmenting established teams or taking on discrete projects. Simpalm organizational maturity meshes well with Established Companies’ processes and procedures.

non profit

Non-Profit

We have a rich history partnering with Nonprofits, bringing technical expertise to the critical missions of Nonprofits. Our analysts and managers have expertise explaining technical concepts to non-technical audiences.

govt

Government

Simpalm has expertise in a panoply of technologies. We work with Government customers to choose solutions that meet strict security requirements, cost-effectiveness, and maintainability.

health

Health and Fitness

Simpalm’s Health and Fitness customers demand cutting-edge design and spare, target apps. Simpalm delivers a super user experience for this competitive market.

fintech app

Fintech

The security concerns of Fintech coupled with ease of use requirements demands a company like Simpalm. We have some deep technical chops to handle security and the best UX designers in the market.

logistics

Logistics and Transportation

Simpalm understands the server-side architecture that’s required to build the types of heavy computing applications demanded by Logistics and Transportation applications.

emerging tech

Emerging Tech

Simpalm is a software company that employs technologists. Weaving emerging technologies like Artificial Intelligence, Machine Learning, and Virtual Reality into easy-to-understand applications is our bread and butter.

Frequently Asked Questions.

Cross platform app development is building one app using a shared codebase that works on both iOS and Android devices. Native development is building two separate apps, each in the platform’s own language and tools. Cross-platform is faster, more cost-effective and keeps the user experience consistent across devices. Native offers the best app experience but requires more time, effort and budget.

Hybrid or multi-platform app development is essentially the same as cross platform app development. People use different terms but they all describe building an app that runs on both iOS and Android using a shared codebase. In hybrid app development, instead of building two separate native apps, you build once and deploy on both platforms. This approach speeds up development, reduces cost and keeps user experience consistent across all devices.

No, cross-platform development isn’t suitable for all types of apps! It is considered suitable mostly if you need a cost-effective app that can ensure a broader outreach across different platforms. Cross-platform development might not be suitable for performance-heavy mobile apps that need high-end native features.

Yes, cross‑platform development is excellent for MVPs, especially for startups and small businesses that need to launch quickly and validate ideas with minimal cost. It delivers faster time‑to‑market, wider reach across both Android and iOS, and a single codebase that keeps the development lean. This makes it easy to test your MVP with real users, gather feedback, and iterate rapidly before investing in a full‑scale product.

The best cross-platform framework depends on your goals, timeline and tech stack. If you want a fast, native-like mobile experience and a huge ecosystem, React Native is a strong choice. If you need to build mobile and web together, with beautiful UI and smooth performance, Flutter is great. And if your team works in the .NET ecosystem, .NET MAUI is the most natural fit, because it helps you build for iOS, Android, and macOS using one C# codebase. Pick the framework that aligns with your team’s skills and user experience you aim to deliver.

Yes, one cross-platform app can run on iOS, Android, web and even desktop depending on the framework you choose. Flutter and .NET MAUI are designed for multi-device experiences and can target mobile, web, desktop using a single codebase. React Native mainly focuses on iOS and Android, but can be extended to web and desktop with additional libraries.

Yes, we have expertise in integrating native device features and APIs into cross-platform apps. We can integrate camera, GPS, push notification, HealthKit, In-App Purchase, Biometrics, AI/ML services.

We build cross platform apps by moving through a streamlined cycle of planning, UI/UX design, shared code development, backend integration, testing and deployment across iOS, Android, web or desktop. A simple MVP takes 8-12 weeks, mid-level apps take 3-5 months while complex solutions can take 6 months or more.

Cross platform app development is generally more affordable than building native apps, but the exact cost depends on the app’s complexity, features and backend needs. A simple MVP can cost around $20K- $45K, while more advanced apps with custom integrations, real-time features, and multi-device support may be in the range of $70K to $100K. Cross platform apps use a shared codebase for both iOS and Android which keeps the cost down by 30-40% from native app development.

Choosing the right company comes down to a few practical checks. Look for a team with proven experience in building cross platform apps. Review their portfolio to see the real apps they have delivered and whether they match the quality you expect. Check their technical expertise, whether they are strong in frameworks like ReactNative, Flutter or .NET MAUI. If your app needs hardware integration like BLE, make sure the vendor can do it. Make sure that they follow a clear development process, offer post-launch support, and communicate well throughout the process. Last but not the least, consider their client responsiveness, and their ability to understand your business goals clearly.

Focus on a few key things like a strong record of building apps that work smoothly across iOS, Android, web and desktop, and a US-based team that is easy to communicate and available during your working hours. Since you are looking for US based companies, their rates are around 120-200 per hour, so you should be ready for those types of billing rates. Additionally, check their portfolio and client reviews. Finally, consider whether they offer agile development, transparent pricing and long-term support.

Outsourcing is a smart move especially if you want to launch faster, reduce costs and access experienced expertise. It lets you work with a skilled team that handles design, development, testing and maintenance without the overhead of hiring in-house experts. For many startups and growing businesses, it is an efficient way to get a high-quality app built while staying focused on strategy and growth. It is a great idea if you don’t have technical expertise to handle the project in-house.

Simpalm offers dedicated cross‑platform developers who can join your project full‑time and work as an extension of your team. They’re experienced with React Native, Flutter, and .NET MAUI, and can handle everything from custom features and UI/UX to backend development and ongoing maintenance.

Yes. Simpalm provides consulting for cross‑platform app projects. If you don’t need full development and only want expert guidance, we can help you plan the right architecture, choose the best framework, refine feature list, estimate timelines, and avoid common technical pitfalls.

If you need a heavily customized cross-platform app, the best move is to work with a team who has deep experience of building tailored solutions. Share your vision, workflows, and feature requirements, upfront, so they can plan the architecture, choose the right framework and chalk out a clear development strategy. You should spend enough time in design and architecture planning so that you have proper specifications, design and architecture laid out for your custom app. Look for a company who offers clean UI/UX design, scalable backend development, and flexible iteration cycles because custom apps evolve as you refine the idea. A trustworthy partner should communicate well and support you post-launch to make the journey smooth and successful.

Look for a development partner who can handle large-scale architecture, strict security requirements and long-term reliability. Their team should be experienced in building enterprise apps that handle heavy traffic, complex workflows, and multi-device usage. They should offer strong UI/UX, scalable backend development, cloud integration, and rigorous testing across all platforms. Enterprise apps evolve constantly, so find a company who provides ongoing maintenance, compliance and clear communication.

Yes, we can help. A good cross-platform UI/UX process focuses on creating layouts, interactions and visual systems that feel consistent across iOS, Android, Web and Desktop. With our partnership, you can expect user research, clean wireframes, intuitive navigation and responsive design that adapts to different screen sizes. We will support you end-to-end with strong UI/UX design, ease of use and an app that looks and feels polished.

We use BrowserStack to test the app on different iOS and Android devices to make sure they all work perfectly on various screen sizes and operating systems.

Yes, we can assist you with the submission process to different app stores, including Apple App Store and Google Play Store. We will help you open your accounts on Google Play and Apple App store and submit all the content to get it published.