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The core of my app is already prototyped in Emergent and the basic functionality works, but the experience still feels rough and the build is not yet production-ready. I now need an experienced mobile developer who can take that prototype, refine every screen visually, and squeeze maximum speed out of the code so the final result feels polished on both iOS and Android devices. Here is what matters most to me: • UI/UX improvements: colours, spacing, typography and micro-interactions should line up perfectly with the original Emergent designs while following Apple HIG and Material guidelines. • Performance optimisation: scrolling must remain buttery-smooth, screens should open in under two seconds on mid-tier phones, and network calls need smart caching to keep data usage low. You are free to work in the framework you’re strongest with—native Swift / Kotlin, React Native, Flutter, or another cross-platform stack—as long as the final deliverable runs efficiently on current iOS and Android versions. Deliverables I expect at the end: 1. Updated, well-structured source code in a private Git repo. 2. Production builds ready for TestFlight and Google Play internal testing. 3. A short hand-off document outlining any new libraries, build steps and store-submission notes. I can provide the Emergent prototype link, existing codebase and all brand assets the moment we start. Let me know roughly how many iterations you foresee for design tweaks, and share a past project where you took an MVP and brought it up to store-ready quality.
Projekt-ID: 40258081
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75 freelancere byder i gennemsnit ₹55.913 INR på dette job

Hello, I specialize in taking working MVPs and transforming them into polished, store-ready mobile products with strong UX consistency and performance optimization. Here’s how I’d approach your app refinement: UI/UX Refinement • Align spacing, typography, and color hierarchy with Apple HIG and Material standards • Add subtle micro-interactions and transition polish • Normalize design tokens for consistency across screens • Typically 2–3 focused design iterations to reach production-grade quality Performance Optimization • Profile rendering and eliminate unnecessary re-renders • Optimize lists with virtualization and lazy loading • Implement smart API caching and background prefetching • Reduce bundle size and improve startup time • Target <2s screen load on mid-tier devices I’ve upgraded MVP apps into store-approved builds by restructuring architecture, improving UX cohesion, and optimizing runtime performance. Share the prototype and codebase, and I’ll provide a precise timeline and iteration plan. Best regards, Jenifer
₹56.250 INR på 40 dage
9,4
9,4

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
₹56.250 INR på 7 dage
6,9
6,9

Hi, Finalize Cross-Platform Mobile App "", We provide complete frontend to backend development with clean, scalable, and high-performance solutions tailored to your requirements. Our experienced team ensures modern UI/UX, secure architecture, smooth functionality, and full support until successful deployment. Let’s build a reliable and impactful product together. Regards, Muhammad Abdullah
₹56.250 INR på 14 dage
7,1
7,1

Hey, I will take the Emergent prototype, align every screen with Apple HIG and Material guidelines, and optimize for speed on both iOS and Android. Before changing code I will profile the build to find actual bottlenecks. Rough prototypes typically suffer from unnecessary rebuilds, unoptimized lists, or missing image caching. Profiling first means fixes target measured problems, biggest speed gain, fewest changes, screens under two seconds on mid-tier devices. Network calls get stale-while-revalidate caching, screens load from local data instantly while fresh results sync in the background. Questions: 1) Which framework is the prototype in, React Native, Flutter, or another? 2) Do you have brand assets ready, or should I extract them from Emergent? Send me a message and we can go over the details. Best regards, Kamran
₹75.000 INR på 15 dage
7,4
7,4

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹56.250 INR på 20 dage
6,5
6,5

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
₹37.500 INR på 20 dage
6,7
6,7

Hello, Since the prototype is working but not production-ready, the goal now is refinement and performance discipline. I would rebuild and optimise this in Flutter to ensure consistent behaviour across iOS and Android while maintaining strong rendering performance. My focus will be on two parallel tracks: • Pixel-level UI refinement to align spacing, typography, colours, and micro-interactions with Apple HIG and Material standards • Performance optimisation including widget tree cleanup, reduced rebuilds, proper state management, image optimisation, and smart API caching to keep screen load under two seconds on mid-tier devices Flutter is ideal here because it allows precise UI control and smooth animations while keeping a single clean codebase. We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Lets connect over chat so we could discuss the details.
₹74.000 INR på 40 dage
6,0
6,0

Hi, I came across your project "Finalize Cross-Platform Mobile App" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, React Native, UI / User Interface, UX / User Experience, Android, iOS Development, iPhone. , 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
₹70.000 INR på 15 dage
5,2
5,2

Hi, I can refine your Emergent prototype into a polished, production-ready app by improving UI/UX to match Apple HIG & Material standards and optimizing performance with clean architecture, caching, and fast load times. I’ll deliver optimized iOS and Android builds with structured code, smooth interactions, and full handover for store submission. Lets discuss on chat. Regards Abhishek
₹50.000 INR på 7 dage
5,5
5,5

Hello, I specialize in taking functional prototypes and refining them into polished, production-ready apps. I can help elevate your Emergent-based MVP to a smooth, high-performance experience on both iOS and Android. UI/UX Improvements Align spacing, typography, and colors precisely with your original designs Refine micro-interactions and transitions Ensure compliance with Apple HIG and Material guidelines Create reusable, scalable UI components I usually recommend 2–3 focused design iterations to reach store-ready quality. Performance Optimization Optimize rendering and state management Improve screen load time (target under 2 seconds) Implement smart caching for network calls Profile scrolling to maintain smooth performance on mid-tier devices Deliverables ✔ Clean, refactored source code in private Git repo ✔ Production builds for TestFlight and Google Play internal testing ✔ Short hand-off document (libraries, build steps, submission notes) I’ve previously transformed MVP apps into polished, App Store–ready products with major UX and speed improvements. Happy to share an example and discuss timeline after reviewing your prototype and codebase. Looking forward to collaborating.
₹37.500 INR på 7 dage
4,8
4,8

As a seasoned Full Stack Web and Mobile App Developer with over 5 years of hands-on experience, I understand the importance of turning a prototype into a polished, production-ready final product. My skill set is geared towards achieving exactly that: refining user interfaces, optimizing performance, and ensuring adherence to platform-specific guidelines like those for iOS and Material Design. Combining my expertise in React Native and Flutter with your Emergent prototype means I can pick up where you left off efficiently. With me on board, you can expect far more than just an efficient codebase. The deliverables you've mentioned – well-documented source code, fully-tested production builds, and comprehensive hand-off documents – will all be taken care of in a timely manner. My clean, optimized, and maintainable code ensures that any future changes or modifications can be made seamlessly without jeopardizing the app's overall integrity. Most importantly, I bring a passion for the work I do - an unwavering drive to create something amazing out of good ideas. That's how I've built apps that have garnered positive user experience across the board while consistently meeting project milestones. Let’s turn your app into something that’s store-ready and ticks all the boxes you've outlined together!
₹56.250 INR på 7 dage
4,7
4,7

I’ve refined cross-platform apps before, taking early MVPs and polishing UI/UX to platform standards while improving performance on real devices. For example, I helped a client in health tech move from a rough React Native prototype to a smooth, store-ready app by tightening spacing, updating animations, and implementing caching that cut data use by 40%. For your Emergent prototype, I will start by reviewing the design details and comparing them to Apple HIG and Material guidelines, then iterate with you on UI tweaks (colors, typography, micro-interactions) to nail visual polish. I expect 2–3 rounds of design feedback to finalize. On performance, I’ll profile slow screens on mid-tier devices and optimize rendering and caching to ensure sub-2-second screen loads and smooth scrolling. Do you already have analytics or profiling data on performance hotspots? Also, what backend or API calls does the app rely on for caching strategies? Once UI and performance are set, I’ll deliver a clean codebase in a private repo, production-ready builds for TestFlight and Google Play testing, plus a brief hand-off doc covering new libs and submission tips. Ready to review the prototype and get this polished up fast.
₹37.500 INR på 7 dage
4,6
4,6

Dear Sir/Madam, I am Kishore Patidar, a professional Mobile App and Python Developer with strong experience in building scalable, production-ready mobile applications and backend systems. I specialize in Flutter (cross-platform), Android (Java/Kotlin), Firebase, Supabase, Node.js, FastAPI, and Django. I have successfully delivered multiple live apps on both Google Play Store and Apple App Store, including fintech, healthcare, education, social networking, and on-demand service platforms. My expertise includes: * Cross-platform mobile app development (Flutter) * Backend API development (Node.js, FastAPI, Django) * Payment Gateway integration (PhonePe, Razorpay, Stripe) * Real-time chat & notification systems * Admin panel & dashboard development * App deployment & store publishing * Secure authentication & role-based systems I focus on clean architecture, scalable backend design, optimized performance, and smooth user experience. From idea to deployment, I can handle complete end-to-end development. I would be happy to discuss your project requirements and deliver a reliable, high-quality solution within timeline. Looking forward to working with you. Best Regards, Kishore Patidar Mobile App / Python Developer
₹45.000 INR på 30 dage
4,7
4,7

Hello, Thank you for the clear brief. We would be glad to refine your Emergent prototype into a polished, production-ready mobile app that performs smoothly on both iOS and Android. Our Focus: UI/UX refinement: Visual alignment with your Emergent designs while following Apple HIG and Material guidelines—improving colours, spacing, typography, and micro-interactions for a premium feel. Performance optimisation: Smooth scrolling, fast screen transitions, sub-2s load times on mid-tier devices, and smart caching for efficient network usage. We can work in Flutter, React Native, or native Swift/Kotlin, depending on what best fits your existing codebase and scalability goals. Deliverables: Clean, structured source code in a private Git repo Production builds for TestFlight and Google Play Internal Testing Handover document with libraries, build steps, and store-submission notes We specialize in transforming MVPs into store-ready, high-performance applications. Typically, 2–3 focused design iterations are sufficient to reach production quality. We’re ready to start immediately and can share relevant MVP-to-production examples. Best regards, Amaan Khan P. CUBEMOONS PVT LTD.
₹56.250 INR på 7 dage
3,6
3,6

Hello, As a seasoned mobile app developer with a keen eye for UI/UX, I can assure you that I'd be the perfect match to finalize your cross-platform mobile app. My varied technical skills—especially my expertise in native Swift and Kotlin—combined with my familiarity with cross-platform stacks like React Native and Flutter, enable me to optimize the visual experience on iOS and Android devices, adhering closely to Apple HIG and Material guidelines. Efficient performance is at the core of my development strategy; ensuring smooth scrolling, quick loading speeds, and intelligent caching of network calls on mid-tier phones. Moreover, I am highly comfortable working with Git as it's my go-to for source code management. I will make sure to deliver well-structured code that is both maintainable and scalable. With this extensive experience behind me plus the use of effective digital marketing strategies, I guarantee to provide not just a polished final product but also a document outlining all key aspects for future development references. Thank you for considering me—I'm excited about the potential opportunity to transform your app! Thanks, Arshiya
₹50.000 INR på 7 dage
3,2
3,2

With an undying passion for mobile app development, we, at Paper Perfect, are primed to be your partners in bringing your vision to life. We have the expertise and experience in various frameworks like Flutter and React Native that would make us a perfect fit for your cross-platform project. Being proficient in both Android and iOS development, we ensure the final product runs efficiently on the latest versions of both platforms. Where we truly shine is turning prototypes into polished products. One of our standout projects involved taking an MVP and elevating it to store-ready quality with meticulous design tweaks and performance optimization. Leveraging the strengths of our skilled developers and incorporating best practices from Apple HIG and Material guidelines, we can assure you that every screen will line up perfectly with the original Emergent design while maintaining buttery-smooth scrolling even on mid-tier phones. Lastly, our commitment to reliability and quality means your project will be delivered on time and within budget. We'll provide well-structured code in a private Git repo, production builds ready for TestFlight and Google Play internal testing, as well as a comprehensive hand-off document for seamless future maintenance. Allow Paper Perfect to exceed your expectations and catapult your app into a new dimension of professionalism.
₹56.250 INR på 7 dage
3,4
3,4

Hello, I’m a mobile application developer with 6+ years of experience building Android and iOS apps that are stable, scalable, and user-friendly. I can take your Emergent prototype and existing code and turn it into a polished, production-ready mobile app for iOS and Android. I’ll refine every screen to match your designs, improve spacing, typography, micro-interactions, and optimise performance so screens load fast and scrolling stays smooth. I work with Flutter, React Native, or native and will deliver clean, well-structured code in a private Git repo and Google Play testing. I’ll also provide a short hand-off guide for future updates. Lets connect on chat to start immediately. Thanks
₹45.000 INR på 7 dage
2,9
2,9

Hey, We will take the Emergent prototype, align every screen with Apple HIG and Material guidelines, and optimize for speed on both iOS and Android. Before changing code we will profile the build to find actual bottlenecks. Rough prototypes typically suffer from unnecessary rebuilds, unoptimized lists, or missing image caching. Profiling first means fixes target measured problems, biggest speed gain, fewest changes, screens under two seconds on mid-tier devices. Network calls get stale-while-revalidate caching, screens load from local data instantly while fresh results sync in the background. Questions: 1) Which framework is the prototype in, React Native, Flutter, or another? 2) Do you have brand assets ready, or should I extract them from Emergent? Send me a message and we can go over the details. Best regards, STALLYONS TECHNOLOGIES
₹60.000 INR på 15 dage
2,9
2,9

Hello, I would love to help finalize your cross-platform mobile app. - I have extensive experience with Flutter and have successfully completed similar projects. - My plan includes reviewing the prototype, refining functionality, and thorough testing. - I will use Flutter, Dart, and Firebase for seamless performance. - I propose a timeline of 4-6 weeks with regular updates via your preferred communication channel. Choose me for my commitment to quality and timely delivery. What specific features need enhancement? Do you have a preferred communication tool? Regards, Bharti M.
₹56.250 INR på 7 dage
2,9
2,9

Hello, Hope you are doing well. I have experience of 6+ years of in Mobile Applications Development and I have previously made many applications with Interactive Designs and Functionalities. I have reviewed your requirement. I will definitely design & develop a fully responsive & user-friendly application. However, I would like to dig more into your requirements to develop a unique application as per your desires App development:- Olx App Taxi App Dating App. Educational App Multivendor App. Hotel and Restaurant Booking App. Doctors/ hospital management App. Please have a look at my portfolio link : https://www.freelancer.com/u/khushiArt Best Regards Khushbu
₹39.000 INR på 20 dage
0,0
0,0

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