Cross-Platform Mobile App Development

@OutsourceMan

Hello, CnEL India is an experienced development team specializing in cross-platform mobile applications, backend/API integration, and responsive UI/UX. Our Methodology: Requirement & UI Analysis – Review the complete functionality, user flow, and UI requirements before development. Architecture & Setup – Set up a scalable React Native/Flutter codebase with a clean and maintainable structure. App Development – Implement core features, responsive screens, navigation, authentication, and required backend/API integrations. Testing & Optimization – Test on both iOS and Android devices, fix bugs, optimize performance, and ensure consistent functionality. Deployment & Handover – Prepare production builds, assist with store deployment, and provide organized source code and documentation. We follow a milestone-based approach with regular progress updates and testing at each stage. CnEL India can start quickly and work toward an ASAP delivery. Please share the detailed requirements so we can confirm the exact timeline and scope. Regards, CnEL India Team

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer

@sanjoy2prosenjit

Cross-Platform Mobile App Development Proposal Hi, I can develop your iOS & Android application using React Native, providing a single, maintainable codebase with native-level performance. Why React Native One codebase for iOS & Android Faster development and lower maintenance cost Easy API/backend integration Scalable architecture for future features Production-ready performance Relevant Experience I have worked on Wishrmart, a cross-platform e-commerce mobile application, covering mobile UI, API integration, user flows and application testing. Proposed Delivery Technology: React Native + Node.js/PHP API + MySQL UI/UX: Figma-based responsive mobile design Testing: Android & iOS device testing Documentation: Source code + API/technical documentation Timeline MVP: 3–4 weeks Complete application: 5–7 weeks, depending on features and API readiness. Estimated Cost USD $2,500–$3,000, depending on the final feature scope. I can start immediately and work with short, milestone-based deliveries to achieve the ASAP launch requirement. Portfolio: Wishrmart — Cross-platform mobile application Availability: Immediate Regards Sanjoy

@mehboobkatiyar

Since you need this **ASAP**, I’d avoid maintaining separate iOS and Android codebases. I’d recommend **Flutter** so we can move faster with one codebase while still delivering a polished native-like experience on both platforms. I can handle the complete flow from **UI implementation → API/backend integration → testing → release-ready builds**, with the project structured cleanly so future development remains straightforward. I’ve completed **41 projects with a 5-star rating**, including mobile, backend/API, Firebase and production application work. I can share relevant examples privately. For an urgent project, I’d also deliver in working milestones rather than making you wait for the entire app. **Before estimating the timeline:** how many screens/features are required, and do you already have the UI/Figma and backend APIs ready? Regards, **Mehboob Katiyar**

@technologiesit

As an experienced full-stack developer, I am confident that I possess the skills necessary to fulfill your cross-platform mobile app development project. My expertise in Flutter ensures a seamless user experience across both iOS and Android platforms. Additionally, I bring extensive experience in integrating backends and developing APIs; an essential component for the success of your app. Whether it's organizing information or transactional processes, trust that I'll maximize the potential of your app with efficient data handling. Throughout my 8+ years in this field, I've consistently prioritized quality and timely delivery, demonstrated by the successful completion of over 200 projects like yours. I understand that speed is a crucial factor for you, which aligns perfectly with my track record - 95% on-time project delivery. You can also count on my strong problem-solving skills and attention to detail to ensure any issues are resolved quickly and effectively. Lastly, my commitment to long-term support ensures that even after the project handover, any needs or concerns will be addressed promptly. I leverage my technical acumen to empower entrepreneurs and businesses like you with digital solutions that actually make a difference in their growth. Let's connect and build an incredible digital product together!

@KarthikTechCon

Hi there, I’m Karthik, a mobile app developer with over 15 years of experience in creating high-quality cross-platform applications. I specialize in React Native and Flutter, ensuring smooth performance on both iOS and Android. I have a strong background in backend integration and API development, enabling me to deliver robust solutions tailored to your needs. My focus on UI/UX design principles ensures that the app will not only function well but also provide an exceptional user experience. I pride myself on writing clean, maintainable code, and I will provide thorough documentation to facilitate future updates. My strong problem-solving skills and attention to detail guarantee that your project will be completed efficiently and effectively. I can start immediately and am committed to delivering your app ASAP. Please check my portfolio [insert link if applicable] for similar projects. I look forward to discussing your requirements and providing a detailed timeline for completion. Best, Karthik

@abhishek060

Hi, The priority is getting the app production-ready quickly without compromising stability or creating technical debt. The development would start by mapping the core flows and API requirements, then implementing them in Flutter/React Native with responsive UI, reliable backend integration, error handling and real-device testing. The codebase will stay modular so future features can be added without major rewrites. Relevant experience includes cross-platform mobile apps, REST API integrations, authentication and production deployments. Similar projects and working examples can be shared during discussion. A clear milestone plan can be prepared immediately after reviewing the final scope, keeping the ASAP timeline realistic. Best regards, Abhishek

@Ak230598

Hello, I can create/modify the app/web as you wish. I have 7+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@shayankhan333

Cross-platform sounds simple until push notifications and iOS review rules hit differently than Android. I'll build in React Native with a shared API layer, wire auth and notifications, and ship signed builds ready for both stores. One catch: Apple rejects apps missing account deletion inside the app, that has to be built in, not just on a website. Past work covers Android and React Native apps. You can see my past work and reviews here: https://www.freelancer.com/u/shayankhan333 1) Is the backend built, or do I stand it up too? 2) iOS and Android developer accounts ready? Cheers Shayan

@tyronet2

I can take this from requirements through production-ready iOS and Android builds using a shared, maintainable codebase. I have 9+ years of full-stack experience and work with both Flutter and React Native, including API integration, authentication, real-time features, backend services, and mobile deployment workflows. For an ASAP project, I’d first lock the MVP scope and API contract, then build reusable UI components and the core flows in parallel with backend integration rather than waiting until the end to connect everything. I’ll keep the project structured for maintainability, with clean Git commits, environment configuration, testing, and clear build/deployment documentation included in the handover. I can recommend Flutter or React Native once I see the required screens and native-device features. Could you share the app’s main functionality or wireframes so I can give you an accurate implementation plan?

@fullstack0407

I am confident that I have the skills and proficiencies you are seeking for your cross-platform app project. My expertise with React Native and Flutter, two of the leading frameworks for building efficient and scalable mobile apps, will ensure top-notch development for your project. Moreover, I bring with me a strong background in backend integration and API development which I believe is essential to create a robust app. I have leveraged several APIs like PayPal, Stripe, Google Maps, and more in my previous projects to enhance user experience and streamline functionality. My skills in UI/UX design combined with my attention to detail will contribute to delivering a high-quality app on time. For an immediate start, I am currently available and can deliver your project within the proposed timeline. I believe in consistent communication and involvement with clients throughout the development process. Hire me today to secure an agile, effective and satisfactory execution of your cross-platform app project!

@mkdroid1229

Hi, I’d be happy to help you build the app and can get started immediately. I specialize in Flutter for cross-platform iOS and Android development, with strong experience in REST API/backend integration, Firebase, UI/UX implementation, and building production-ready apps. I’ve worked on applications including LadyFair, Yasko Dental Hospital, Egg & Broiler Rates, TogoLink, and Inflyx—an influencer platform— along with several other mobile projects. I focus on clean, maintainable code, smooth performance, and clear documentation. Once I understand the complete scope, I can provide a realistic timeline and prioritize the development to meet your ASAP requirement. Happy to discuss the project and get started right away.

@Zaiyan

I can efficiently develop your cross-platform mobile app using React Native, ensuring it meets both iOS and Android requirements. My first step will be to outline the app’s architecture and confirm the key features you want included. Based in Toronto, Canada, I work quickly and maintain clear communication throughout the project.

@RajAbhisek

Hi, You need one cross-platform app covering iOS and Android with backend and API work behind it, and you want it moving quickly. I can start right away. React Native and Flutter are what I work in day to day, and I have taken apps through to both stores. The brief is open on what the app actually does, so can you ping me here and tell me a bit about it? Easier to sort out over chat. Thanks, Raj

@ammarahmed20

With over six years of experience in mobile app development, I understand the challenges you face in bringing your project to life. My proficiency in React Native and Flutter - essential tools for cross-platform app—is unrivaled. Having worked across various industries, I have honed my skills in backend integration and API Development, ensuring smooth operation and data synchronization. What sets me apart is my ability to deliver high-quality code with a strong focus on UI/UX design principles—a crucial element often overlooked. My background in developing AI agents, automation systems, and full-stack platforms means that I not only create apps but build sustainable infrastructures for them to work seamlessly. On top of that, my commitment to clear communication and fast turnaround time will ensure we meet or exceed your timelines for completion—no surprises. Don't just take my word for it—check out my portfolio featuring projects similar to yours. From AI voice receptionists for a medical provider to a freight sales automation system, you'll see the versatility and depth of my work. With me, you're getting more than just an app developer; you're getting someone who will proactively close the gap between your needs and delivering a successful project that fits them perfectly.

@Mayanks010

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu

@WCTech

Hello, We can build your high-quality cross-platform mobile app for both iOS and Android using Flutter or React Native, with a focus on performance, clean UI, and scalability. Modern responsive UI/UX REST API & backend integration Secure authentication and data handling Clean, maintainable, well-documented code Testing, optimization and app-store-ready builds Complete source code and deployment support Timeline: 3–6 weeks depending on features. Budget: Starting from $1,000, based on the final scope. Ready to review your requirements and start immediately.

@adityakhuman006

Having worked with a wide range of frameworks, from React Native to Flutter, I'm your go-to developer for this cross-platform mobile app project. My deep understanding of both iOS and Android platforms ensures that I deliver applications that are seamless, high-performing, and tailored to the unique requirements of each platform. I’ve even got hands-on experience in backend integration and API development which gives me that extra ‘edge’ when it comes to developing fully integrated cross-platform solutions. Turning complex ideas into elegant, efficient and user-friendly solutions is what's defined my career. My strong background in mobile app development is underscored by my knack for writing clean, maintainable and efficient code, ensuring speed and reliability without compromising quality. With a focus on detailed documentation, I can also guarantee transparent workflow. Beyond coding, it’s important to me that we create something meaningful together. With industry-proven problem-solving skills and an attention to detail that ensures no task goes overlooked, your project's success is deemed before-measure. I strongly believe in effective communication throughout a project and am committed to r achieving the highest standards of client satisfaction. Let’s turn your vision into reality!