Android Buy-Sell App Development

@Arunmohan001

Hi, I’d be happy to help you with this. I’ve done similar projects and focus on fast, reliable delivery. Let me know the details — I can start right away. – Arun

@ChiragDeol

Hello, This is a full marketplace system, not just an app—and I can build a scalable Android + admin solution with secure payments and clean architecture. What I’ll Do • Develop Android app (Kotlin, MVVM) for buying/selling items • User accounts with profiles, history (listings & purchases) • Listing system (create, browse, manage items) • Integrate Razorpay + PhonePe (sandbox/UAT) with escrow-style flow • Build lightweight web admin panel (manage users, listings, disputes, payments) • Real-time admin updates (new listings, user control actions) • Modular codebase for future features (chat, ratings, notifications) My Approach Clean Architecture • MVVM + scalable backend (API-based) • Modular structure for easy feature expansion Secure Payments • PCI-compliant integration with Razorpay & PhonePe • Escrow logic: hold → release on delivery confirmation Admin Control • Dashboard with live data (listings, users) • One-click approve/block users • Simple, fast UI for operations Output • Android source code (Android Studio ready) • Admin panel (web-based) • Database schema + API integration • Deployment & setup guide Tools • Kotlin / Android Studio / REST APIs • PHP or Node backend + MySQL • Razorpay & PhonePe integration Quick Question Do you want the escrow to be fully automated (release after confirmation) or admin-controlled for disputes?

@shibbuquadir

As an experienced developer at Paper Perfect, I am confident in my ability to deliver the marketplace app you're seeking. My team is highly skilled in mobile app development, and we have successfully delivered similar projects. Our knowledge of Android and proficiency in Kotlin ensures that the resulting app will follow modern guidelines, be secure, and perform optimally. Moreover, we understand the importance of a seamless payment flow for such apps. Our expertise includes integrating different payment gateways successfully into different apps, and our understanding of PCI compliance ensures that users' payments are safe and secure throughout the transaction process. Lastly, I assure you a smooth onboarding process. Not only will we provide a successful build on your system with all aspects functioning correctly, but our app will also include an intuitive admin panel to enable real-time updates and efficient management of listings, users, disputes, and payments. Trust Paper Perfect to provide you with both an exceptional product and an exceptional experience overall. Let's bring your vision to life.

@iamfreelancer79

As a full-stack developer with expertise in Android, I have successfully completed numerous projects that required the flavor of features you’ve outlined. My knowledge and experience with Kotlin, Java, and familiarity with modern Android guidelines ensure that I can provide you with modular, well-optimized code for developing your buy-sell marketplace app. Having worked extensively in incorporating payment gateways – particularly Razorpay and PhonePe – I understand the significance of maintaining PCI compliance and secure escrow of funds during transactions. I also acknowledge the importance of efficient account management systems in buy-sell apps, so I will ensure the profiles maintain purchase histories and contact details. Moreover, as a technical team ready to “turn ideas into scalable, secure, and revenue-ready digital products,” we value effective project management which aligns perfectly with your expectation for clear communication and documentation. Beyond completing the acceptability test - Successful build on my machine in Android Studio, Test transaction completing end-to-end with Razorpay sandbox and PhonePe UAT, and Admin dashboard showing new listing alerts - , I assure you long-term support and optimization to ensure your app remains timely and efficient. Let's team up not only to complete your project but also enhance your business using technology!

@shailender18

Having implemented a variety of android applications, including engaging developments like C2C commerce platforms, I believe my expertise aligns well with your project needs. I am fully proficient in working with Android SDK, utilizing Java and Kotlin, precisely to offer great user experiences while maintaining code modularity as you've expressed. As a full-stack developer, I not only specialize in mobile application development but also excel in building web-based admin panels and deploying entire systems. Utilizing modern methodologies like MVVM pattern, I assure you that the platform will successfully integrate with RazorPay and PhonePe for PCI-compliant transactions and that every feature within the admin dashboard will be designed for real-time decision-making. And besides just development, choosing me ensures the benefit of salesforce-focused moderation. With this, I'll clearly document the source code to include thorough deployment guides for both the app and admin panel. As specified in your project acceptance terms, I'll deliver a functional workspace on your machine.

@khushiArt

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

@biodun5

As an experienced mobile app developer, I can provide you with the top-notch Android marketplace app you need for your buy-sell project. My expertise lies in creating seamless, user-friendly apps that not only meet but exceed clients' expectations. The features you mentioned - User accounts with profile photos, contact details, and transaction histories - will be my priority in the first build to ensure a smooth interface for your users. On the payment front, I am well-versed in incorporating PCI-compliant payment flows like Razorpay and PhonePe to ensure user transactions are secure and funds are held in escrow until an order is marked delivered. Moreover, having developed similar C2C commerce apps before, I understand your requirements deeply and can implement a clean code structure to make integrating future functionalities like chat, ratings, and push notifications much easier for you. Lastly, I would say that choosing me means choosing concise communication, thorough work, and reliable service from start to finish. I place great importance on attention to detail which aligns well with your need for a functional admin dashboard that can facilitate easy management of listings, users, disputes, and payments in real-time. I look forward to delivering efficient Android market-place app that cats votre bac

@Baghali1

I have read your description and analyze your complete description. I am a flutter developer. I can make your app Android . Later you can also for ios with single codebase. I want to work with you. Looking forward to work with you.

@Aswin262004

Hi, This is a complete C2C marketplace app with payments and admin panel—so I want to approach it properly to ensure stability and scalability. I can build an MVP version including: User accounts with listings & history Product listing & browsing Admin panel for managing users and listings Razorpay payment integration (PhonePe can be added next phase) The app will follow clean architecture (MVVM) and modular structure for future features like chat and notifications. Due to the scope (mobile app + backend + payments), a realistic budget for a stable solution is ₹40,000+, depending on final features. I prefer building this in phases to ensure quality. Let’s discuss your priorities and finalize a proper roadmap. Best regards, Aswin

@SjonVoogt

I know that I am a good candidate to consider for your project, especially given your need for a seamless, PCI-compliant payment flow integrating Razorpay and PhonePe with escrow functionality. My approach ensures a polished, intuitive Android marketplace app paired with a lightweight, high-performance web admin panel for real-time management of listings, users, disputes, and payments. All delivered with a cohesive, modular codebase following modern MVVM architecture in Kotlin. While I am new to freelancer, I have tons of experience and have done other projects off site. My strong technical skills and problem-solving mindset guarantee streamlined deployment, reliable results, and efficient solutions aligned with your core objectives. I would love to chat more about your project! Regards Sjon Voogt

@kartavyaa94

Hi, I understand you need a complete Android buy-sell marketplace app with user accounts, secure payments, and an admin panel. I can build a clean, scalable app using modern Android practices (Kotlin/MVVM) with features like listings, user profiles, and Razorpay/PhonePe payment integration. I will also provide a lightweight admin panel to manage users, listings, and transactions. My focus is on performance, clean architecture, and future scalability so features like chat and notifications can be added easily later. I’m ready to start and deliver quality work within your requirements. Best regards, Kartavya

@kgolak

Your project caught my attention because managing real-time listings and payments efficiently is critical for smooth user experience. Implementing PCI-compliant payment flows with Razorpay and PhonePe in escrow adds an important layer of trust, and setting up this securely within Android Studio requires careful API integration and state handling. I plan to build your app using Kotlin, employing MVVM architecture for modularity and easier future feature additions. The admin panel will be lightweight, using a reliable web stack to ensure instant updates on listings and user management. Communication will be clear and frequent, with organized milestones so deadlines are met without surprises. Could you specify your preferred technology stack for the admin panel and any hosting services you intend to use?

@Amirkhan789

Hi, I’ve read your requirements and understand you need a clean MVP of a buy-sell marketplace app with a simple admin panel and payment flow. I can build this using Kotlin and XML (ViewBinding) with MVVM architecture, including: • User accounts with profile and history • Product listing and browsing (using RecyclerView for smooth performance) • Razorpay integration for payments along with PhonePe (UAT-ready integration) • Simple escrow flow (funds released after delivery confirmation) • Lightweight admin panel for managing users and listings The code will be modular so features like chat, ratings, and notifications can be added easily later. I’ll ensure the app builds successfully on your Android Studio and provide the complete source code, database schema, and a deployment guide. I can start immediately and share an initial working demo within 2–3 days. Do you prefer Firebase for the backend (great for real-time updates), or should I include a simple custom setup? Looking forward to working with you.

@Arslanshahzad20

Hi, I’ve reviewed your marketplace app requirements and I can help you build a clean, scalable Android solution using MVVM architecture. For better performance and budget control, I suggest starting with a Phase 1 build: ✔ User authentication (profile, history) ✔ Product listing & browsing ✔ Admin panel (manage users & listings in real time) Once the base is stable, we can integrate: ✔ Razorpay & PhonePe (sandbox → live) ✔ Escrow-based payment logic ✔ Notifications, chat & ratings (modular add-ons) I’ll provide: • Complete Android source code (Kotlin, MVVM) • Backend + database schema • Web-based admin panel • Full deployment guide I’ve worked on similar structured apps and focus on clean UI + optimized performance. Let’s discuss how we can deliver this efficiently within your budget. Thanks

@raj855

✨✨ Marketplace App (Flutter + Admin Panel) ✨✨ Hi, I read your project and completely understood. I’ve done similar marketplace apps before, I’ll develop a scalable C2C marketplace app with Flutter and a real-time admin panel with FEATURES ✔️ Flutter app (Android-ready, scalable for iOS later) ✔️ User accounts (profile, history, listings, purchases) ✔️ Product listing & browsing system ✔️ Secure payments (Razorpay + PhonePe integration) ✔️ Escrow-based payment flow (hold → release on delivery) ✔️ Clean MVVM architecture & modular codebase ✔️ Real-time backend sync (listings, users, payments) ✔️ Lightweight web admin panel ✔️ Admin controls (manage listings, users, disputes) ✔️ One-click user approval/block system ✔️ Test-ready setup (Razorpay sandbox + PhonePe UAT) ✔️ Clean database schema & documentation ✔️ Android Studio build-ready project ✔️ Deployment guide for app & admin panel Many more as per your needs... Let’s discuss your project in detail and get started ASAP Best wishes, Raj

@camleniosoftware

Hello, I can build your Android marketplace app with Kotlin, following MVVM for clean, modular code. Users will have profiles, listing histories, and secure payments via Razorpay and PhonePe with escrow handling. I’ll create a lightweight web admin panel to manage users, listings, disputes, and payments in real time. You’ll receive full source code, database schema, and deployment instructions. The first build will run smoothly in Android Studio with test transactions verified end-to-end. Let discuss further. Thanks!