Cross-Platform Goods Marketplace App

@infowider11

⭐️⭐️⭐️ Cross-Platform Marketplace App Development (Carousell-Style MVP) ⭐️⭐️⭐️ Hello, I checked the JD and you want to build a scalable cross-platform marketplace application for iOS and Android with buying, selling, in-app messaging, user management, and a secure admin panel, inspired by the seamless experience of Carousell. Main Features: * Cross-platform iOS & Android app * User registration and authentication * Email, phone, and social login * User profile management * Product listing management * Image upload with admin-configurable limits * Category and condition management * Search, filters, and sorting * Favorite and recently viewed items * In-app buyer and seller chat * Push notifications * WhatsApp/phone sharing option * Report and block users * Listing status management * Paid listing and photo upgrades * Payment gateway integration * Secure backend APIs * Web-based admin dashboard * User and listing moderation Let’s chat… Thanks

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand the need to build a dynamic cross-platform goods marketplace app where buyers and sellers can seamlessly connect. My background in developing high-security FinTech solutions and scaling apps to serve over 1 million users directly applies to the challenges of your project. To ensure the success of your marketplace app, I recommend implementing a robust authentication system to secure user data and transactions. My experience in developing native iOS and Android apps, such as the Telegram Mini Apps, showcases my ability to handle the complexity of this project. I am confident in my ability to deliver the iOS and Android app bundles that meet store guidelines, along with the necessary seller and buyer account flows and product listing modules. I am eager to discuss the roadmap for this project further and how we can bring your vision to life.

@ominfowave

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.

@suhelshaikh

At IBR Infotech we build cross-platform marketplaces routinely — buyer-seller listings with image management, chat, and auth flows are exactly what we ship. Your brief for iOS and Android native apps with a lightweight backend fits perfectly. We'll build with React Native for both iOS and Android from a shared codebase, paired with a Node.js + Express API handling auth, product CRUD, and the chat layer. MongoDB handles product/stock data with image upload via signed URLs. Seller dashboards manage listings, pricing, and stock; buyer flows handle browse, search, and chat. One thing to clarify early — do you prefer a shared codebase approach via React Native or truly separate native stacks (Swift/Kotlin)? React Native cuts delivery time significantly without compromising native feel. Happy to walk through the architecture on a quick call before kickoff. Bid: $1200, delivery in 15 days.

@ZohaibRoy

⭐⭐⭐⭐⭐ Build a Cross-Platform Marketplace App for iOS and Android ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking to develop a cross-platform marketplace app. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for marketplace applications. I'll create a user-friendly app that allows buying, selling, and direct communication between users, all while ensuring a secure backend. ➡️ Why Me? I can easily build your marketplace app with 5 years of experience in mobile app development, focusing on user authentication, product listings, and in-app messaging. My expertise includes working with scalable backends and user-friendly interfaces. I also have a strong grip on technologies like React Native and Firebase, ensuring a smooth development process. ➡️ Let's have a quick chat to discuss your project in detail. I can provide samples of my previous work that showcase my ability to create efficient and effective applications. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Mobile App Development ✅ React Native ✅ User Authentication ✅ In-App Messaging ✅ Backend Development ✅ Firebase ✅ API Integration ✅ UI/UX Design ✅ Payment Integration ✅ Database Management ✅ User Management ✅ App Deployment Waiting for your response! Best Regards, Zohaib

@godesignpk

Hi, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, Mobile App Development, iPhone, Android, User Interface / IA, App Design, iOS Development, Backend Development, App Store Optimization, Android App Development Please come over chat and discuss your requirement in a detailed way. Regards

@pinkeegupta

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 and php CodeIgniter mvc and Laravel. Please consider me and initiate a chat for further detailed discussion. Regards, Anju

@vishal1145

Your marketplace will fail store review if you don't implement proper content moderation and fraud detection from day one. Apple and Google both reject apps that allow unvetted user-generated listings without abuse reporting mechanisms. Quick question - are you planning to handle payments in-app (which triggers 30% store fees) or routing users to external checkout? That decision changes your entire backend architecture and compliance requirements. Second - what's your expected transaction volume in month one versus month six? If you're anticipating more than 500 concurrent users, a monolithic PHP backend will bottleneck during image uploads and search queries. Here's the architectural approach: - NATIVE iOS/ANDROID: Swift and Kotlin codebases with shared REST API contracts, not hybrid frameworks that compromise performance during image-heavy browsing. - BACKEND INFRASTRUCTURE: PHP API with Redis caching layer, S3 for image storage with CDN delivery, and PostgreSQL with indexed search to prevent slow queries as your catalog grows. - AUTHENTICATION: Firebase Auth integration supporting email, Google, and Apple Sign-In to meet iOS privacy requirements and reduce custom security overhead. - REAL-TIME CHAT: WebSocket implementation with message persistence and push notifications via FCM/APNs so buyers don't miss seller responses. - STORE COMPLIANCE: Automated screenshot generation, metadata optimization, and pre-submission TestFlight/internal testing to catch rejection triggers before you waste two weeks in review. I've launched 4 marketplace apps that cleared first-round store approval by building moderation workflows and appeal systems upfront. Let's schedule a 20-minute call to align on your payment strategy and scaling timeline before we lock the tech stack.

@mobiappsoftware

Hello, I will develop your GOODS MARKETPLACE MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@kamrankhan089

Hi, I’m building a mobile marketplace where buyers and sellers can register, list physical products. The core flow is straightforward browse, chat and they deal themselves, with the ability for sellers to manage listings, prices, images, and stock from their phones. I need fully native experiences for both iOS and Android. A lightweight, secure backend Deliverables: • iOS and Android app bundles ready for App Store & Google Play submission • Seller and buyer account flows (email, social, or phone auth) • Product listing module with image upload, price, quantity, and category fields Acceptance criteria: apps pass store guidelines If you need any clarifications on tech stack, milestones, or sample UI references, let me know so we can lock those in before kickoff.

@codefusion53

Hi, I’m excited about this project to develop a cross-platform marketplace app inspired by Carousell. With extensive experience in mobile app development for both iOS and Android, I focus on creating intuitive, responsive interfaces that users love. I’ve built scalable backend systems with secure APIs, ensuring smooth data flow and future expansion. My approach includes integrating secure user authentication, real-time in-app messaging, and push notifications to keep users engaged. I prioritize clean code and thorough documentation to simplify deployment and management. Given your budget, I can tailor the MVP to include core features like listings, search, chat, and admin controls, with room for future enhancements. I am confident I can deliver a polished, native-quality app that meets your specifications while providing a seamless user experience. I will also assist with deployment and app store submission to ensure a smooth launch. Let’s work together to bring your marketplace idea to life with a robust, scalable backend and beautiful mobile apps. Best, Justin

@ciss26

Hello there, Hope you are doing well Your marketplace MVP aligns well with my expertise. I have experience developing cross-platform mobile applications with secure backends, real-time chat, payment integration, and admin dashboards, and I can build a scalable marketplace similar to Carousell with a clean and modern user experience. For the MVP, I will implement: Cross-platform mobile apps for iOS & Android using Flutter or React Native Secure authentication (Email, Phone, Google/Apple Sign-In) Product listing management with photos, categories, pricing, item condition, and sold status Advanced search, category browsing, filters, favorites, and recently viewed items Real-time buyer-seller chat with push notifications User reporting, blocking, and content moderation Payment integration for purchasing additional listing and photo upload slots A powerful web-based Admin Panel to manage users, listings, platform settings, pricing rules, and moderation Secure backend with scalable APIs and database architecture for future growth Thanks & Regards Dheeraj k.

@melikatfz

The brief says fully native iOS and Android, which is worth clarifying given the budget — two separate native codebases at this price point is tight. React Native delivers a near-native experience on both platforms from a single codebase and would be my recommendation here unless there's a specific reason to insist on Swift and Kotlin separately. The in-app chat is the feature that needs the most architectural thought. Building a reliable messaging layer from scratch adds significant scope; integrating something like Stream or Sendbird is faster and handles the edge cases. Is the native-only requirement a hard constraint, or is the priority getting a solid, store-ready product on both platforms efficiently?

@Eliteinno

Marketplace apps with in-app chat get flagged during App Store review more often than people expect — Apple wants to confirm the chat can't be used to route payments off-platform, so the listing and chat flows need to make the "deal themselves" nature explicit without triggering that concern. React Native covers both platforms cleanly here; the listing module with image upload and stock management is straightforward, and a lightweight Node/Supabase backend handles auth and storage without over-engineering for an MVP scope. Is there a category structure already defined, or does that need to be scoped as part of the build?

@kishanbwts

Your marketplace idea is clear, and making native apps for both iOS and Android will ensure smooth and fast user experiences. I’ve built similar marketplaces where sellers manage listings and buyers browse and chat, so I know how important it is to get the flows seamless and store-compliant. To keep the backend lightweight and secure, I usually recommend serverless functions or minimal Node.js setups with proper auth tokens—which option do you prefer? Also, do you have preferred payment or chat integrations in mind, or will chat be purely text-based within the app? I can deliver fully native apps ready for store submission with tested auth flows (email, social, phone) and a solid product listing module, including image upload and stock controls. Let’s clarify your tech stack and UI references so I can start building the core features right away.

@vladang

You’re essentially building a Carousell-style MVP, but the part that matters most isn’t the listing screens—it’s getting the marketplace rules, messaging flow, and admin controls right from day one so the platform remains manageable as usage grows. My approach would be to start with the core user journey: registration, listing creation, search/browse, favorites, and seller management actions. Once that flow feels solid, I’d add real-time chat with notifications and the reporting/blocking features, since those become critical as user activity increases. The admin panel would be built alongside the backend so limits like listing counts, photo quotas, minimum pricing, and moderation rules are configurable without code changes. For mobile, I’d recommend React Native to keep a single codebase while maintaining native-quality iOS and Android experiences. I’ve built similar large-scale applications with React Native and scalable backend architectures where future features could be added without reworking the foundation. One thing I’d clarify first: do you already have a preferred payment provider, and will purchases happen entirely inside the app or only for listing/photo upgrades?

@waqaswebmaster

Hi, There You've outlined a well-scoped MVP with the right foundation for long-term growth, and I like that the focus is on getting the core marketplace experience right before expanding. I can build a clean, Carousell-inspired cross-platform app for iOS and Android with secure user authentication, listings, search, in-app chat, push notifications, admin-controlled listing limits, payment integration for upgrades, and a scalable backend with a web-based admin panel. The project will include complete source code, deployment assistance, and documentation, with an architecture designed to support future features without requiring a major rebuild. Waqas Ahmed

@techsty2014

Good to see this project, We will build your marketplace app on a single React Native codebase with native modules where performance matters: product browsing, in-app chat, and seller dashboard. For the chat layer, we will use WebSockets over a lightweight Node.js backend. This keeps conversations real time without polling, and it scales well as your user base grows. Auth will support email, social, and phone options through Firebase. A couple of quick things to confirm: 1) Do you have a preference for image storage (S3, Cloudinary, or another)? 2) Will categories be fixed or should sellers propose new ones for approval? The number quoted here is a starting estimate. The exact cost and timeline will be confirmed after we go through the full scope together. Ready to start whenever you are. Faizan

@Sajid293r

Hi there, I hope you are doing well. Building a scalable cross-platform marketplace app similar to Carousell with secure user authentication, product listings, in-app chat, admin controls, payment integration, and a robust backend is an exciting project. I have experience developing Flutter/React Native marketplace applications with secure APIs, real-time messaging, admin dashboards, and cloud-based architectures designed for future scalability while delivering a smooth buying and selling experience. Do you already have UI/UX designs and a preferred payment gateway, or would you like me to recommend the best technology stack and architecture for your MVP? Let's have a quick chat to discuss more in detail. I am looking forward to hearing from you. Best, Sajid.