Custom Buy & Sell App

@jastp

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand your goal of building a custom buy and sell app that connects buyers and sellers seamlessly while simplifying the transaction process. My background in creating high-complexity systems, such as serving over 1 million users and developing high-security FinTech platforms, directly translates to the challenges of streamlining your platform for fixed-price transactions. To ensure scalability and security for your project, I would recommend implementing a robust REST/GraphQL backend setup that can easily scale as your platform grows. Drawing from my experience in building and scaling high-traffic applications, I am confident in my ability to deliver a smooth and intuitive mobile app that meets your requirements. I encourage you to reach out to discuss further details and explore the roadmap for your custom buy and sell app. Let's collaborate to bring your project to life in a timely and efficient manner.

@OutsourceMan

As a premier web and app development enterprise, my team at CnELIndia is well-versed in the intricacies of building custom trading platforms just like yours. Our proficiency and experience in technologies such as Android, iOS, React Native, Node.js, and robust REST architectures equip us with the exact skill set needed to turn your vision into a tangible and efficient app. We also have experience incorporating convenient features like cash-on-pickup payment method and bartering options. Not only do we offer adept coding solutions, but also an unparalleled UI/UX designs process. Our methodology involves creating initial wireframes followed by constuctive feedback sessions with our employers. This approach ensures no details are overlooked on a design front. Our job isn't just to deliver, it's to consistently meet and surpass all expectations. We provide end-to-end services with exceptional post-launch support so your platform stays functional well after its creation. With our expertise in e-commerce projects, I believe that you can place your confidence in us for timely execution and quality delivery. We look forward to discussing timelines and a development approach that aligns perfectly with your unique project requirements.

@gotucat

Hello, I read your project description and I can help you build the Buy/Sell mobile app using Flutter with a clean and scalable structure. The app will include a product listing dashboard where you can easily add items with images, price, and descriptions. Users will be able to browse products, search quickly, filter by categories, and view reviews with star ratings. I will make sure the app runs smoothly on both Android and iOS and the code will be well-structured so future features like payments or user accounts can be added easily. You will receive the complete source code, test builds for both platforms, and a simple setup guide so you can manage products and reviews without difficulty. I’d be happy to discuss the details and start working on the MVP. Thanks, Sujay

@kamran2012

Hello, I will build your buy-and-sell app in Flutter with listings, fixed-price checkout, user ratings, and a full admin dashboard. The app will cover photo uploads, stock tracking, category browsing with location filters, and multiple payment modes including cash on pickup and barter agreements between buyers and sellers. For the architecture, I will separate the listing service from the chat/negotiation layer so each scales independently — this keeps the app fast even as your user base grows and listing volume increases. Questions: 1) Do you need in-app messaging between buyer and seller to coordinate pickup and alternate payment terms? 2) Should location filters use the device GPS for nearby listings, a manual city/zip entry, or both? 3) For the admin dispute flow, do you envision a ticket-based system or a simpler flag-and-review queue? Looking forward to talking through the details. Kamran

@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.

@sunainawbst

Custom Buy & Sell App Hello I have read your project requirements, i can help you develop and deploy the perfect app for your fixed-price trading platform. With over 1500 projects under our belt, we've mastered the art of creating intuitive and efficient mobile applications just like the one you're envisioning. I’ve successfully launched multiple production apps across Google Play and App Store, delivering secure, optimized, and user-friendly solutions. ⭐Due to NDAs, links aren’t public—but once you open the chat, I’ll share live demos and walkthroughs. I’d be happy to discuss your requirements and execution plan. Bid amount is a placeholder and can be discussed over chat. Thanks & Regards Ranjana

@extreamcode

Hi there, I’ve read your Custom Buy & Sell App brief and I’m confident I can deliver a clean, scalable fixed-price marketplace on iOS/Android with a strong emphasis on UX and reliability. I’ve led e-commerce builds with Flutter and React Native, and I’ll architect a secure Node.js or Laravel backend with REST/GraphQL, plus an admin dashboard for moderation and analytics. My approach: wireframes to polished UI/UX prototypes, a robust mobile app for sellers and buyers with photo galleries, fixed pricing logic, and a simple checkout (cash on pickup, barter/alternative currency with mutual agreement). I’ll implement an efficient search, location filters, and per-item stock handling, plus a credible ratings system. Deliverables include fully functional apps ready for submission, a secure API doc, admin tools, deployment guide, and 90-day post-launch support. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. What is the expected initial user base and target launch region, so I can tailor the data model, localization needs, and scalability plan accordingly?

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you want a clean fixed-price marketplace app for physical goods where sellers can publish listings quickly, buyers can browse by category/location, and transactions happen through pickup, delivery, or directly agreed exchange terms rather than online payment. The goal is to keep the experience simple, fast, and trustworthy, with strong listing flow, profiles/reviews, search, and an admin console for moderation and disputes. My approach would be to design this as a mobile-first marketplace with a structured listing system, clear buyer-seller flow, scalable backend APIs, and an admin dashboard that keeps moderation and analytics easy from day one. I’ve worked on marketplace-style platforms, admin dashboards, and mobile/web systems where UX, trust, and workflow clarity are critical. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – Do you want buyer and seller chat built into the app from Phase 1 so they can arrange pickup, delivery, or barter terms directly? Q2 – Should stock status support true inventory counts per listing, or just simple availability states like available, low stock, and sold out? Q3 – For ratings and reviews, should users only be able to review each other after a confirmed transaction or can reviews be left more openly? Looking forward to hearing from you.

@ZohaibRoy

⭐⭐⭐⭐⭐ Create a User-Friendly Fixed-Price Marketplace App for Buyers and Sellers ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project requirements and see you're looking for a mobile app to facilitate fixed-price transactions. You don't need to look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for e-commerce apps. I will create a clean, intuitive platform where sellers can easily list items and buyers can browse effortlessly while ensuring secure transactions. ➡️ Why Me? I can easily build your fixed-price marketplace app as I have 5 years of experience in mobile app development, focusing on e-commerce solutions, user interface design, and backend integration. My expertise includes Flutter, React Native, and RESTful APIs, which will ensure a robust and scalable application. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you! ➡️ Skills & Experience: ✅ Mobile App Development ✅ E-commerce Solutions ✅ UI/UX Design ✅ Flutter & React Native ✅ Backend Development ✅ API Integration ✅ Payment Gateway Setup ✅ Database Management ✅ User Authentication ✅ Wireframing & Prototyping ✅ Agile Methodologies ✅ Quality Assurance Waiting for your response! Best Regards, Zohaib

@AITSoft

Hi there, I understand you need a simple but solid app where people can buy and sell items at fixed prices without auctions or social feeds. The app should let sellers upload photos and set prices easily, and buyers can browse by category or location. Payment will be flexible, cash on pickup, barter, or cash on delivery. Both iOS and Android apps are needed, and the backend must be secure and scalable with an admin panel to manage listings and disputes. I’d focus first on clear wireframes and smooth design, then build the apps with a solid backend that supports all functions smoothly, including user ratings to build trust. To start, I’d like to know: What’s your preferred tech stack for backend and frontend? Is there any payment integration or location service you want me to use? How detailed should the user rating and review system be? Do you have specific performance goals or user load expectations? Which backend tech do you prefer: Node.js, Laravel, or another? Looking forward to your reply. Thanks,

@DeveloperStation

Hi, We’ve built multiple e-commerce platforms with custom workflows, including a marketplace where sellers can list products and buyers can purchase them directly without bidding. We also developed a custom wallet system for buyers to fund their accounts and use that balance for purchases. We can use Laravel for the backend and Vue.js for the frontend, as we’ve successfully delivered several projects with this tech stack. We also have a dedicated team of UI/UX designers who can create modern, user-friendly interfaces that convert visitors into buyers. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about this exciting project. Best regards, Adil

@planDapps

FIXED PRICE MARKETPLACE: STREAMLINED P2P TRADING ARCHITECTURE To achieve your goal of a "no fluff" trading platform, we recommend a React Native frontend paired with a Laravel (PHP) backend. This stack provides the high performance browsing needed for image heavy listings while ensuring the backend remains secure and easy to scale as your user base grows. At Plan D Studios, we have 12+ years of experience in mobile app development and web development, focusing on high utility e commerce builds that prioritize clean UX / User Experience. Our Technical Approach: Fixed Price Logic: We’ll architect the database to strictly enforce per item pricing, ensuring the checkout remains transparent for both single and bulk purchases. Trust & Discovery: Implementation of a geo location filtering system for local pickups and a secure, verified purchase rating system to build community credibility. Admin Ecosystem: A comprehensive admin panel with moderation tools to handle disputes and monitor listing quality in real time. Handoff: You’ll receive fully documented API integration notes and a deployment guide for both the App Store and Google Play. We handle all Full Stack Development in house no outsourcing. We focus on building tools that are "job ready" and easy to maintain. Should the location filter be based on exact GPS coordinates for local meetups, or should we use a broader "city/neighborhood" selection to maintain initial user privacy? Regards, Haider

@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

@XanvraTECH

Hello, I am highly interested in your project for a Custom Buy & Sell App. I understand the need for a streamlined platform for fixed-price transactions and have extensive experience in Flutter, iOS Development, Android, Node.js, and React Native. My expertise in mobile app development and backend technologies makes me well-suited for this project. I propose to create a user-friendly app with key features such as listings, checkout options, user profiles, search functionality, and an admin console. I will deliver wireframes, polished UI/UX prototypes, fully functional apps for both stores, a secure backend with API documentation, an admin dashboard, and post-launch support. Please find my portfolio here: - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I look forward to discussing the project further and finding the best development approach to meet your requirements. Best regards, Warda Haider

@caciocode

Hi, I am a software engineer. I can create a buy sell app for your project. I have worked on a similar large scale project.

@Srashtasoft

Hi there, I have read your project requirement. You need a clean, mobile-first marketplace app for fixed-price listings with features like product uploads, buyer-seller connection (cash on pickup/barter/COD), user profiles with ratings, search & discovery, and an admin dashboard for moderation and analytics. I can build a scalable and intuitive platform using Flutter (for iOS & Android) with a robust backend (Node.js/Laravel), ensuring smooth listing flow, fast search, secure APIs, and a user-friendly experience focused on simplicity and performance. A few questions before we proceed: ============================= Do you want real-time chat/negotiation between buyers and sellers within the app? Should location filtering use GPS-based distance or manual location selection? Do you need push notifications (new messages, listing updates, offers)? Will admin panel be web-based and do you need detailed analytics dashboards? Best Regards, Srashtasoft Team

@Rekhathakur

Hi, Your idea of a clean, fixed-price marketplace (no auctions, no noise) is solid—and I can help you build it end-to-end with a scalable, production-ready approach. I’ve worked on eCommerce & marketplace apps with listings, user profiles, ratings, and admin moderation, so I can deliver a smooth buyer-seller experience focused on simplicity and speed. Proposed approach: Mobile Apps: Flutter (single codebase for iOS & Android) Backend: Node.js + PostgreSQL (secure, scalable APIs) Admin Panel: React-based dashboard Real-time features (chat/negotiation) via WebSockets if needed Core features covered: Listings (images, price, stock, categories) Fixed-price flow + offline payment logic (pickup/COD/barter) User profiles with ratings & reviews Search (keyword, category, location-based) Admin moderation, analytics & dispute handling Deliverables: UI/UX (wireframes → polished design) Fully functional apps (App Store + Play Store ready) Secure backend + API docs Admin dashboard + deployment support Quick questions: Do you want in-app chat for negotiation/barter? Should location be GPS-based or manual selection? Any plan for future online payments or keep strictly offline? Timeline: 5–7 weeks (MVP) I can share similar marketplace work—let’s connect and refine this. Thanks....

@royalwebraisers

Hi, As per my understanding: You want a clean, fixed‑price buy‑and‑sell mobile app where users list items with photos, price, and stock, and pay via cash on pickup, barter, or COD, supported by profiles with ratings and a simple discovery flow. Implementation approach: - Build the app with Flutter or React Native for both iOS and Android, paired with a Node/Laravel backend exposing a secure REST/GraphQL API. - Design a straightforward UI (listings, search, categories, location filters, profile‑based reviews) plus an admin dashboard for listing moderation, analytics, and dispute handling. - Deliver wireframes, polished prototypes, store‑ready apps, API docs, deployment guide, and short post‑launch support. Queries: - Which stack do you prefer (Flutter vs React Native vs native), and what backend experience are you most comfortable with on your side? I will share my portfolio on your first message.