Android & iOS Marketplace App -- 3

@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

@webtechso

Hello Sir/Ma’am, I can build your cross-platform marketplace app with real-time chat, media sharing, and a clean, scalable architecture. Recommended approach:- - Flutter (single codebase for iOS & Android) - Firebase/Node.js backend for real-time chat & data sync - WebRTC / Agora for voice & video features (Built for performance, scalability, and smooth UX.) I will deliver:- - Multi-role system (Customer, Shop Owner, Service Provider) - Product posting with media uploads (physical + digital) - Real-time chat (files, voice notes, video calls) - Secure authentication + user profiles - Clean, native-like UI across devices - Production-ready builds + full source code + deployment guide Timeline: 1–2 weeks I focus on building scalable, chat-driven platforms with smooth real-time experiences. Ready to start. Best regards, Pulkit J.

@Srashtasoft

Hi there, I have read your project requirement. You need a cross-platform mobile application with a single codebase supporting multiple roles (customers, shop owners, service providers), including product listings (physical + digital) and a robust real-time chat with file sharing, voice messages, and video calls, along with secure authentication and a native-like UI. We can build this using Flutter or React Native with a scalable backend (Node.js/Firebase), integrating real-time chat (WebSockets), media handling, and video calling (WebRTC or third-party SDK), ensuring performance, security, and maintainability. Before proceeding, I have a few questions: ================================== Do you need a custom backend or integration with existing APIs? Should chat/video be built from scratch or use services like Agora/Twilio? Do you need payment integration for transactions? What is your expected timeline for MVP? Best Regards, Srashtasoft Team

@vishal1145

Your three-role marketplace will fail user acceptance testing if the chat system can't handle concurrent video calls without crashing the app. I've seen this exact scenario kill two similar projects - they launched with a beautiful UI but the real-time messaging layer couldn't scale past 50 simultaneous conversations. Before architecting the solution, I need clarity on two things: What's your expected user base in month one versus month six? This determines whether we need Firebase's free tier or a dedicated WebSocket server. Second, are you planning push notifications for offline users, and do you have Apple Developer and Google Play accounts already set up? The video call infrastructure alone requires specific backend provisioning. Here's the architectural approach: - FLUTTER + GETX: Build a single codebase with state management that prevents memory leaks during video calls and keeps the app responsive under 60fps on older devices. - AGORA SDK: Implement video calling with automatic bandwidth adjustment so calls don't drop when users switch from WiFi to cellular mid-conversation. - FIREBASE FIRESTORE + CLOUD STORAGE: Handle real-time chat with offline sync and media uploads up to 50MB per file, with automatic compression to prevent storage costs from spiraling. - STRIPE CONNECT: Set up marketplace payments where you take a platform fee while shop owners and service providers get paid directly, avoiding escrow liability. - PUSH NOTIFICATIONS: Configure FCM and APNs with deep linking so tapping a chat notification opens the exact conversation thread, not just the app homepage. I've built 4 marketplace apps in the last 18 months, including one that handles 200K monthly active users across ride-sharing and product listings. I don't take on projects where the real-time infrastructure isn't planned upfront. Let's schedule a 20-minute technical call to walk through your wireframes and discuss failure scenarios before I commit to a timeline.

@mahig47

Hello! As per your project post, you’re looking to build a Marketplace Mobile App with a single codebase that works seamlessly on Android and iOS, supporting customers, shop owners, and service providers. The goal is to create a clean, high-performance platform where users can post physical and digital products, communicate through real-time chat with file sharing, voice messages, and video calls, and complete deals securely within the app. My focus will be on delivering a fully integrated mobile application, featuring: multi-role user system for customers, shop owners, and service providers, intuitive product posting with media uploads, secure account creation and authentication, real-time chat with file sharing, voice messaging, and in-app video calls, responsive and native-like UI for both platforms, and complete production-ready Android and iOS builds with documented source code and deployment instructions. I specialize in cross-platform mobile apps using Flutter and React Native, real-time communication systems, and scalable backend architecture. My focus will be on creating a reliable marketplace app with strong messaging capabilities, clean code structure, and smooth App Store and Play Store deployment support. Let’s connect to discuss your preferred chat technology, user role permissions, and product moderation workflow so we can finalize the development roadmap and timeline. Best regards, Nikita Gupta

@ixorawebmob

Hello, I’ve gone through your project details and I see a great opportunity to build a robust marketplace app that serves multiple user roles. With over 10 years of experience in mobile app development using Flutter and React Native, I specialize in clean architecture and scalable code. For your app, I will ensure seamless functionality for customers, shop owners, and service providers, supporting real-time chat with voice messages and video calls. I prioritize a secure and intuitive product-posting interface while maintaining compatibility for both Android and iOS. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m eager to understand more about your requirements. Could you clarify: Could you share any specific features or functionalities you would like to prioritize in the real-time chat? Let’s discuss further to ensure we create an app that meets your vision! Regards, Arpit Jaiswal

@webnsoftindia

???? Title: Cross-Platform Marketplace App with Real-Time Chat & Video (Flutter Expert) ???? Hello, I carefully read your requirement, you want to build a single-code-base mobile app for Android & iOS with multi-role users (customers, shop owners, service providers) including product listings, real-time chat, file sharing, voice messages, and in-app video calls. You are focused on clean UI, strong performance, and production-ready, maintainable code. Features Multi-role system (Customer / Shop Owner / Service Provider) Product listing (physical + digital) with media uploads Real-time chat (text, file sharing, voice notes) In-app video calling integration Secure authentication & user management Clean, native-like UI for both Android & iOS Scalable backend for messaging & data handling CALRIFY Question only 2 beforre starting work Do you prefer Agora, Twilio, or Firebase for chat + video calling integration? Will payments be required inside the app or deals are finalized externally via chat? Tech recommend Frontend: Flutter (single codebase, high performance) Backend: Node.js / Firebase (real-time capabilities) Database: Firestore / PostgreSQL Chat & Calls: Agora / Twilio SDK Storage: AWS S3 / Firebase Storage Auth: Firebase Auth / JWT-based system Let's Connect.... Thanks

@Arunmohan001

Hi, I have experience building marketplace apps with real-time communication features, and I can develop your platform with a clean, scalable architecture. I recommend KMP for a single codebase with native-like performance on both Android and iOS. The app will support multiple roles (customers, shop owners, service providers), product posting (physical + digital), and a seamless browsing experience. For chat, I’ll implement real-time messaging with file sharing, voice notes, and video calling using reliable technologies (Firebase/WebRTC or similar). The system will be secure, fast, and designed for long-term scalability. You’ll receive production-ready builds, clean source code, and full deployment guidance. Happy to share similar work.

@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

@nextolive

Hi, I can build your cross-platform marketplace app using Flutter, ensuring a smooth, native-like experience on both iOS and Android. I’ve developed apps with real-time chat (file sharing, voice notes, video calls) using Firebase + WebRTC, along with multi-role systems (customers, sellers, providers). I’ll deliver secure auth, product posting with media uploads, and a scalable backend. Timeline: 7–9 weeks for MVP. Happy to share similar marketplace/chat apps I’ve built. Best regards,

@kaustubhbawa123

Hi, I am an IIT Grad, Google Associate Android Developer, ex-BFSI and worked at fortune 500 companies. I will make it a reality for you. As a Mobile App Developer, I can develop a crossplatform mobile application using React Native with Firebase backend, payment gateway integration, and secure authentication to support seamless Android & iOS functionality. What is your expected timeline for project completion? Also, Do you have any design preferences, brand guidelines, or reference designs? Kindly click on the chat button so we can discuss and get started. Will share you my prior projects done and my resume too. I have been doing freelancing since 2019 worked at top MNCs in both USA and India. Lets connect

@Sohailzk

Hello, I checked your pdf all requirements Im ready to develope this app, Im expert flutter developer and having best experience, Kindly dm me to start and discuss more in chat, Im waiting! Thanks

@NEHABHAT92

With over 9+ years of experience in web and mobile app development under my belt, I believe I’m not just capable but well-versed to deliver an impressive mobile marketplace app that meets your needs. What sets me apart is my proficiency with cross-platform toolkits such as Flutter and React Native, which are compatible for both your Android and iOS requirements. I’ve undertaken and successfully delivered projects that share similarities with yours, making me thoroughly familiar with the complexities of building marketplaces and robust chat functionality. My previous clients have praised my code quality and easy maintainability, which echoes your emphasis on these aspects. On top, you’ll receive extensive pre-production support that includes 3 months of post-delivery assistance. Not only am I proficient in crucial aspects like secure account creation, smooth media uploads, and efficient real-time chat with video calling capabilities - but I can also guarantee you a cost-effective project without compromising on features or design. By hiring me, you aren't picking just a developer; rather opting for a partner who’s equally committed to making your ideas a reality. So let's turn your vision for an exciting marketplace app into a successful venture!

@techsty2014

Hello, I will build your marketplace app in Flutter for both Android and iOS from a single codebase, with role-based flows for customers, shop owners, and service providers. The app will include product posting with media uploads, browsing and search, and a full-featured chat system with file sharing, voice messages, and video calls. For real-time chat and video calls, I will use WebRTC for peer-to-peer video and Firebase for message delivery and presence — this keeps call quality high while avoiding per-minute API costs that third-party video SDKs charge at scale. Here are apps I have published: StatStream (Play Store), P2T Private (Play Store) Questions: 1) For video calls, do you need group calls or one-to-one only? 2) Will payments be handled inside the app, or do buyers and sellers settle externally? Ready to start whenever you are. Faizan

@Kishoreindia

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

@hr157

With 10+ years of experience in mobile and full-stack development, I can build a scalable, high-performance cross-platform app with seamless marketplace and real-time chat functionality. Preferred Stack: Flutter (for fast, consistent cross-platform performance) Node.js + WebSocket/Firebase for real-time features Skills & Approach: Multi-role system: customers, shop owners, service providers Product listings with media uploads (images/videos) Secure authentication and role-based access Real-time chat with file sharing, voice messages, and video calls Clean, native-like UI/UX for Android & iOS Scalable backend with optimized APIs and database design Well-structured, maintainable code with documentation Deliverables: Android APK + iOS build (App Store ready) Full source code + setup guide I’ve built marketplace and chat-based apps before. Let’s connect and discuss your project in detail.

@DigitalNightOwl8

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks

@bridgestonetech1

Hello, I understand you need a cross-platform mobile app with three user roles (customers, shop owners, service providers), along with a strong real-time chat system including file sharing, voice messages, and video calls. I will build a scalable app using Flutter/React native (single codebase for Android & iOS), covering secure authentication, product posting with media uploads, and a clean, native-like UI. The chat system will be implemented with real-time messaging, media sharing, and video call integration, ensuring smooth performance. You’ll receive production-ready builds (APK & iOS), well-structured source code, and clear setup/deployment documentation for future maintenance. I focus on clean architecture and long-term scalability, especially for chat-heavy and marketplace apps. Let’s connect in chat so I can share similar work and confirm the best tech approach for your project.

@UzeeTech

As a seasoned Full-Stack Developer with expertise in both frontend and backend, I have the distinct advantage of comprehensive understanding that this project requires; from building the smoothest and native-feeling mobile apps using Flutter and React Native, to developing robust backend architectures that incorporates the essential features like real-time chat, media uploads, video calls etc. I assure you of the best quality production-ready Android APK and iOS build suitable for App Store submission. My 7+ years of experience includes numerous marketplaces and chat-heavy app deliveries which can be particularly advantageous for this project. I deliver much more than just code; alongside clean and highly-documented code, I provide realistic timelines, regular communication for status updates, a testable and future-proof solution as well as technical advice when required. This commitment to delivering top-notch solutions within deadlines has consistently endeared me to my clients who often return for future collaborations - something I believe every successful project should strive for.