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I need a cross-platform mobile application that runs smoothly on both iOS and Android, from first sketch through to App Store and Google Play release. The scope covers initial discovery, UX/UI design, full-stack development, testing on real devices, and store submission with ongoing post-launch support options. To be considered, send a detailed project proposal that explains: • the development framework you recommend (e.g., Flutter, React Native, Swift/Kotlin with shared logic, etc.) and why it fits this project • a phased timeline with clear milestones—from wireframes and interactive prototypes to beta testing and final deployment • your quality-assurance process, including how you will handle device fragmentation, performance optimisation, and App Store review guidelines • any third-party services or APIs you expect to integrate, plus your approach to data security and user privacy • post-release maintenance or feature-expansion plans Proposals that include examples of similar live apps, a concise breakdown of deliverables per milestone, and realistic time/cost estimates will stand out. The deliverable is a fully functional, polished mobile app accepted by both stores, accompanied by source code, build instructions, and basic documentation for future updates.
Project ID: 40494658
104 proposals
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Active 3 days ago
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104 freelancers are bidding on average ₹106,675 INR for this job

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.
₹75,000 INR in 15 days
8.4
8.4

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your mobile app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
₹75,000 INR in 24 days
8.0
8.0

I recommend Flutter for this project — single codebase, native performance on iOS and Android, and fastest path to both stores. My phased approach: Phase 1 (Weeks 1–2): discovery, wireframes, and interactive prototype for approval. Phase 2 (Weeks 3–8): full-stack development with API integration, authentication, and data security. Phase 3 (Weeks 9–10): real-device QA, device fragmentation testing, performance optimization, and App Store/Play Store submission. Deliverables: full source code, build instructions, and documentation. I offer post-launch support and feature expansion. I have live apps published on both stores and can share examples. Regards, Harsh Thoriya
₹150,000 INR in 7 days
8.3
8.3

Hi, your "Cross-Platform Mobile App Build" project is right in my wheelhouse. I develop modern JavaScript apps end to end — React/Vue/Next on the front and Node/Express on the back, in TypeScript where it helps. Working with mobile app development, iphone, android, user interface / ia, ios development, full stack development, react native, flutter, I focus on responsive, fast UIs, clean component structure, and reliable APIs — no page-builder shortcuts. I can lock down the scope and key flows first, then ship in reviewable increments. Let's hop on a quick chat to align on your requirements? ⭐ 5.0/5 from a recent client: "This was wonderful experience and I also got an addtional choice of updating budget and other features which was not available in the old version of my existing software that I used to perform my d…" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹120,000 INR in 21 days
7.8
7.8

This looks like a great fit, I will deliver your cross-platform app — UX/UI design, full-stack development, real-device testing, and store submission for both iOS and Android. I recommend Flutter for this — single codebase, native-compiled performance, and smooth animations without the bridge overhead that React Native introduces. One thing I will prioritize early: setting up platform-specific CI/CD pipelines that run automated tests against Apple and Google review guidelines before each build. This catches rejection triggers — like missing privacy manifests or incorrect entitlements — before submission, saving days of back-and-forth. Questions: 1) What is the core functionality of the app — user-facing content, transactions, real-time features, or something else? Looking forward to talking through the details. Kamran
₹84,314 INR in 25 days
7.5
7.5

Hello, I’m interested in helping bring your mobile app from concept to App Store and Google Play launch. I have 8+ years of experience in Flutter, React Native, Node.js, Laravel, Firebase, and full-stack application development. I have successfully delivered cross-platform mobile apps from planning and UI/UX design through development, testing, deployment, and post-launch support. Questions ========= Is the project still in the idea stage, or do you have detailed requirements ready? Will an admin panel be required? Are there any third-party integrations planned (payments, maps, chat, AI, etc.)? What is your target launch timeline? Do you have branding assets or design references available? I can provide a detailed roadmap, timeline, and cost estimate after reviewing the project scope. Best Regards,
₹142,500 INR in 30 days
7.1
7.1

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
₹75,000 INR in 10 days
7.0
7.0

Hello! As per your project post, you’re looking to take a mobile app from concept to full production release across both iOS and Android. From what I understand, the goal is to establish a structured development process covering discovery, UX/UI design, cross platform development, testing, deployment, and post launch support while ensuring the app remains scalable, secure, and easy to maintain. My focus will be on delivering a complete solution featuring: discovery workshops, wireframes and interactive prototypes, UX/UI design, cross platform mobile development, backend architecture, API integrations, user authentication, analytics integration, QA testing, performance optimization, App Store and Google Play submission, and post launch support. I recommend Flutter for this project as it enables a single codebase for iOS and Android, delivers near native performance, accelerates development timelines, and simplifies future feature expansion. My development approach follows clear milestones including discovery, design, development, QA and beta testing, deployment, and ongoing maintenance. Let’s connect to discuss your app concept, target audience, feature requirements, and launch objectives so I can provide a detailed roadmap and timeline tailored to your project. Best regards, Nikita Gupta.
₹75,000 INR in 28 days
5.6
5.6

For this app project, I recommend using React Native. It provides near-native performance on both iOS and Android from a single codebase, speeding up development and simplifying ongoing maintenance. I’ve helped clients in ecommerce and service booking build React Native apps that launched smoothly on both stores with minimal iteration. Here’s a phased timeline with key deliverables: 1. Wireframes & interactive prototype (2 weeks) – focusing on user flows and core screens for quick feedback. 2. UI design & UX polish (2 weeks) – align visuals with brand and accessibility standards. 3. Full-stack development (4-6 weeks) – front end, backend/APIs, local storage, and any required third-party integrations like payment or analytics. 4. QA & device testing (2 weeks) – run tests across popular device models to fix fragmentation and optimize performance, plus pre-submission App Store compliance review. 5. Deployment & store submission (1 week) – manage app store listing, metadata, certificates, and follow-up on review feedback. Quality checks will include automated unit and integration tests, manual UX testing on real devices, and monitoring performance metrics like app launch time and memory use. For security, I propose using encrypted data storage and following GDPR best practices, especially for any user data or third-party API calls. If you have APIs or services in mind, sharing those will help clarify integration scope. Also, are there features you expect post-launch, or a maintenance window preferred? I’ll provide the complete source code with build instructions and documentation to ensure smooth handoff. Ready to start turning your sketches into a polished live app.
₹150,000 INR in 7 days
5.4
5.4

Hi, I came across your project "Cross-Platform Mobile App Build" and I'm confident I can help you with it. About Me: I'm a full stack developer and agency owner with over 8+ years of experience in Mobile App Development, Full Stack Development, React Native, Flutter, Android, iOS Development. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak
₹120,000 INR in 30 days
5.2
5.2

With over 5 years of experience in mobile app development, I can help build a high-quality cross-platform application that runs smoothly on both iOS and Android. I have strong experience with Flutter and React Native and have successfully delivered scalable, user-friendly, and production-ready applications. I follow a structured development process that ensures transparency and timely delivery. From planning and UI implementation to testing and deployment, every stage is carefully managed to maintain quality and meet project goals. My expertise includes: • Flutter & React Native Development • Cross-Platform Mobile Applications • API & Third-Party Service Integration • Performance Optimization • Secure Authentication & Data Handling • App Store & Play Store Deployment • UI/UX Implementation & Responsive Design I focus on writing clean, maintainable, and scalable code while ensuring excellent performance across different devices. I also understand the challenges of device compatibility, app optimization, and platform-specific requirements. Beyond development, I provide ongoing support, bug fixes, and maintenance to ensure the application continues to perform reliably after launch. I would be happy to discuss your requirements in detail and create a roadmap that aligns with your timeline and business goals. Looking forward to working together.
₹112,500 INR in 7 days
5.2
5.2

As an experienced Full Stack Developer and Digital Solutions Expert, I bring more than 10 years of comprehensive knowledge and a solid track record in web and mobile app development. My expertise encompasses not only iOS and Android development but also cross-platform frameworks like Flutter and React Native. Considering your project needs a seamlessly functioning app on both operating systems, I would recommend using React Native as it allows for code sharing between platforms, saving both time and cost while maintaining compatibility. In terms of third-party services or APIs that may need integration, rest assured, I am well-versed in utilizing these effectively. With regards to maintaining data security and user privacy; I implement industry best practices. To top it off, I offer post-release maintenance as well as feature-expansion options for your app’s continuous growth. Overall, my commitment to quality work delivered on time with regular communication makes me an ideal fit for this project. Let's turn your vision into a fully-optimized reality!
₹112,500 INR in 7 days
4.9
4.9

Dear Sir, I hope this message finds you well. I am a Flutter Developer with 8+ years of experience building high-performance mobile apps, specializing in clean architecture, state management, and scalable UI/UX. I specialize in developing Flutter applications and have strong domain knowledge. I can complete your project within the agreed timeframe and budget. Having worked on similar projects, I am confident I can exceed your expectations. Please let me know if you would like to discuss this further in chat. Best regards.
₹75,000 INR in 7 days
4.9
4.9

Hello, I can create/modify the app/web as you wish. I have 6.5+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.
₹120,000 INR in 5 days
4.9
4.9

Hi! Your focus on a true cross-platform app—one process from first sketch to live app in both stores—matches my usual flow. Covering design, real-device testing, and even store review in one plan is the smart way to avoid surprises. I’d use Flutter for this. One codebase means faster progress, lower maintenance, and fewer platform quirks at launch. I've shipped Wish App this way; both iOS and Android are live in the stores from the same repo. On QA, I handle device quirks by testing real devices early, not just emulators. Performance gets tuned for both stores before submission. Anything you already know you’ll want to integrate—like payments, chat, or maps? I bake in data privacy from day one. Want me to send a one-page breakdown of how I’d phase this—free and clear? You can also see snapshots of live mobile apps I’ve built at work.techindika.com. — Pradeep
₹112,500 INR in 7 days
4.5
4.5

As a seasoned professional with over a decade of experience in mobile app development, I offer you tangible proof that I am the right fit for your project. Being an expert in both iOS and Android, I understand the importance of cross-platform compatibility and can deliver a seamless app experience through frameworks like Flutter, React Native or Swift/Kotlin with shared logic. What sets me apart is not just my technical skills but also my knack for strategic development. Crafting UX/UI wireframes to interactive prototypes is my core strength, and I even consider beta testing and final deployment as significant milestones. Ensuring quality assurance measures has never been alien to me and with device fragmentation issues, performance optimization techniques and compliance to App Store review guidelines will be handled with utmost responsibility. Additionally, my proficiency in integrating third-party services/APIs and prioritizing data security and user privacy will make your app more efficient. Post-launch support and maintenance are integral parts of app development and I take it seriously. My dedication to eliminating technical debts will ensure a fully-functioning, polished mobile app. Moreover, my expertise in delivering successful projects on time while ensuring quality benchmarks are met consistently makes me a top-notch candidate for this job.
₹112,500 INR in 7 days
5.2
5.2

With a forte in Full-Stack Development, we are well-prepared to provide an all-encompassing solution to your cross-platform mobile app needs. Leveraging our expertise in AWS, Azure, and Google Cloud, we will build cloud-native architectures with robust capabilities to handle device fragmentation while ensuring optimal performance and adherence to App Store guidelines. Our choice framework, such as Flutter or React Native, would guarantee a smooth user experience across both iOS and Android platforms. To break down the project phases effectively, we propose delivering tangible milestones from initial wireframes and interactive prototypes to beta testing and final deployment. This will allow you to track our progress consistently as you expect while also enabling us to implement your feedback in real-time for enhanced app functionality. Data security and user privacy are paramount concerns for us, hence we entrust third-party integrations only after thorough vetting ensuring optimum data security measures. The journey doesn't end with app deployment; we strive to form long-term partnerships with our clients. Offering our assistance even post-launch, we assert that you can rely on us for any required maintenance or future feature expansions.
₹112,500 INR in 7 days
4.6
4.6

Hey Mate , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Android, iOS Development, User Interface / IA, Mobile App Development, Full Stack Development, iPhone, React Native and Flutter. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Always happy to hear from you
₹124,875 INR in 3 days
3.9
3.9

Hello, I have read your Complete proposal your Need a Experienced Flutter developer for cross-platform mobile app. I have more than 3 years of work experience in Mobile application developemnt have a hand-on expeirence in Many terms like Figma to Flutter, Firebase, Google maps and Rest APIs integrations I am Confident that will handle your task in a reasonable price and time and I am available to start working on it Let's chat to Proceed
₹75,000 INR in 7 days
3.7
3.7

Hi, we can take your app from concept to App Store and Google Play launch, handling UX/UI design, development, testing, deployment, and post-launch support. For most projects, we recommend Recat Native/Flutter as it provides a single codebase for iOS and Android, faster development, consistent UI, and lower long-term maintenance costs. The project would be delivered in phases: discovery & wireframes, UI/UX design, development, QA testing, beta release, and final store submission. Our process includes real-device testing, performance optimization, security best practices, API integrations, and full compliance with App Store and Google Play guidelines. You'll receive complete source code, documentation, deployment guides, and optional ongoing maintenance after launch. Before providing an accurate timeline and cost estimate, could you share the app concept and key features you want to include? Let’s connect and discuss the scope in detail.
₹80,000 INR in 20 days
3.9
3.9

Surendranagar, India
Member since Jun 18, 2021
₹75000-150000 INR
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₹12500-37500 INR
$8-15 USD / hour
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£750-1500 GBP
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$15-25 USD / hour
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₹37500-75000 INR
$10-30 USD
₹1500-12500 INR
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$250-750 NZD
₹12500-37500 INR