Cross-Platform Marketplace App Customization

@corpmember29

Hello!! " Cross-Platform Marketplace App Customization "I have similar kind of expertise and work experience. I am having more then 10+ years of experienced in programming and i believe that i can start working step by step and achieve the project goal in short time frame. I WILL PROVIDE 2 YEARS OF FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE. WE WILL WORK WITH AGILE METHODOLOGY AND WILL ASSIST YOU FROM ZERO TO PUBLISHING ON STORES. successfully implement this project from start-to-finish. Let's come together and create a platform that not only propels your business but also stands out prominently within the marketplace. Awaiting for your positive response. Thanks Christina >>>>>>> We'll share our portfolio in Chat. Let's talk further speak over the freelancer call or chat. <<<<<<

@Hammadhassan21

Howdy, Since you already have the white label codebase, the fastest path to a production ready marketplace is to make the existing foundation work properly for Nepal rather than spending time rebuilding features that are already there. I’d first audit the current Flutter or React Native codebase, assess Galli Maps against the existing map requirements, and then integrate eSewa and a reliable OTP provider with the authentication and payment states handled cleanly from end to end. I can handle the app customization and branding, package and bundle configuration, map, payment, and OTP integration, along with Android and iOS release preparation. For the backend, I’d work with what the existing codebase already supports and choose between Firebase, Supabase, or Node.js based on the actual marketplace requirements rather than adding unnecessary infrastructure. The goal would be to turn the existing white label product into a stable, branded, Nepal ready application that is properly tested and prepared for release. I can show you similar map, payment, marketplace, or white label examples in chat where relevant. Portfolio: https://www.freelancer.pk/u/Hammadhassan21 Best regards, Hammad Hassan

@Herculesz

Hi, This project requires careful integration of third-party services into a white-label mobile app, with the main engineering challenge being seamless replacement of the map system and reliable payment and authentication flows across Android and iOS. I usually structure integrations by first validating the existing codebase architecture to ensure modularity and maintainability before introducing new components like Galli Maps and eSewa payment gateway. The Custom Feature Development & Integration project reflects my experience in enhancing existing apps with clean, well-documented feature additions and third-party integrations. I typically design the system to separate concerns between UI, payment processing, and authentication layers to reduce coupling and ease future maintenance. Ensuring OTP verification reliability and secure payment flows will be critical, so I approach these with robust error handling and fallback mechanisms. I would start by outlining the integration pipeline and reviewing the app’s current state management and backend dependencies. Thanks, Hercules

@avinashjain09

Hello, Can you please share the link of the script that you have purchased so I can check it. I can make the changes and then publish your apps. I am available to start the work immediately. Regards Avinash

@elvish2412

Hello, Nice to meet you! I clearly read your complete requirements, you want marketplace application and I am able to do this. I will work as per your need. I have 7+ years of experience. and i developed many apps for many clients. Please message me in the chat so we can discuss more about the requirements. I assure you that Hiring me for the project will be your best decision. Services that I will offer: # Support up to 1 Year. (Free) # Update daily or weekly bases. # Available 18+ hours in day for discussion. # Free bug fixing till complete development. # Free manual testing. # Logo + app + web design. # App & web Thanks & Regards Arun Goswami

@mobiappsoftware

Hello, I will develop your 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

@Curveballsol

Hello, I understand that you need a Mobile App Developer to customize a white-label marketplace app for Android and iOS. My expertise in Mobile App Development, Android, and Flutter makes me well-suited for this project. I will replace the map system with Galli Maps, integrate the eSewa payment gateway, and implement an OTP/SMS verification system for user authentication. I will also handle white-label branding and deliver production-ready apps with clear documentation. I have successfully integrated maps, payment gateways, and marketplace features in previous projects. You can view my portfolio https://www.freelancer.com/u/Curveballsol for more details. Effective communication and timely updates will be ensured throughout the project. Best regards, Curveball Solutions

@ixorawebmob

Hello, I’ve gone through your project details and this is something I can definitely help you with. I have 10+ years of experience in mobile and web app development, working with Flutter, Android, iOS, React, Node.js, and APIs. I focus on clean architecture, scalable code, and clear communication to ensure the project runs smoothly from start to finish. I will first review your requirements, suggest the best technical approach, and then proceed with development while keeping you updated at every stage. Here is my portfolio: https://www.freelancer.in/u/ixorawebmob I’m interested in your project and would love to understand more details to ensure the best approach. Could you clarify: 1. Do you need this for mobile, web, or both? 2. Do you already have UI/UX designs or should we create them? 3. Will there be any third-party API or payment gateway integration? 4. What is your expected timeline for completion? 5. Are there any reference apps or websites you like? Let’s discuss over chat! Regards, Arpit Jaiswal

@vivekrl43

Dear client, I have read your project details, I can do customization in the app as per your required modification, I have more than 10 years of exp in apps and web development.

@Eliteinno

Switching out the map system to Galli Maps is straightforward with Flutter's flexible plugins. Implementing eSewa support will require custom integration, given its regional specificity, but it's manageable. For OTP verification, I'd suggest Firebase's authentication, as it seamlessly integrates across platforms. Backend-wise, Firebase offers comprehensive support for authentication, real-time databases, and hosting, making it ideal for this project's needs. Do you have a preference for the video walkthrough format, or should it simply cover major features and build steps?

@melikatfz

The main risk here is taking a white-label codebase that works and making the Nepal-specific integrations production-safe without breaking its existing marketplace flows. I’d keep the single Flutter codebase, replace the map layer with the most suitable Nepal provider, integrate eSewa and OTP authentication cleanly, then handle branding, package IDs, release configuration, and Android/iOS builds with milestone-based testing. For the backend, I’d first inspect the existing architecture rather than introduce Firebase, Supabase, or Node unnecessarily. Is the current app built in Flutter, and can you provide the existing source code for a quick compatibility check?

@cliftonc20

Hi, The project aims to deliver a production-ready white-label marketplace app with custom map integration and payment gateway support, which requires careful handling of third-party service reliability and seamless user authentication flows. The main technical risk is ensuring robust integration of mapping and payment services across both Android and iOS platforms while maintaining a consistent user experience. While my background centers on backend AI systems and scalable pipelines rather than mobile app customization, I understand the importance of modular architecture and clear separation of concerns in multi-platform projects. For example, in my work on scalable SaaS platforms, I designed systems with distinct ingestion, processing, and API layers that facilitate independent testing and deployment. My approach would be to separate the mapping, payment, and authentication modules clearly to isolate integration risks and enable easier updates or provider swaps. Early validation of the OTP verification system’s reliability across target regions will be essential to avoid user friction. For production readiness, monitoring and fallback mechanisms for payment and SMS services will improve stability and user trust. I can start by outlining a modular architecture for the app’s core integrations and defining the first technical milestones for map and payment gateway replacement. Thanks, Clifton

@BarryCrouch

Hello, The safest approach is to separate maps, payments, authentication and branding from the existing marketplace core so each integration can be replaced without affecting the others. I’d map the current codebase first, then integrate Galli Maps or the chosen Nepal provider, add verified eSewa payment callbacks, OTP authentication, and finally the white-label package IDs, themes and store configuration. Which backend and mobile framework does the current codebase use? Share the repository structure and I can identify the cleanest integration points first. Thanks

@CodeAnchors

Hello, I hope you are doing well. I have a clear understanding of your project for customizing a white-label marketplace app for Android and iOS in Nepal. The main tasks of integrating Galli Maps, eSewa payment gateway, and OTP/SMS verification system align with the business objective of enhancing user experience and security. My approach involves structured requirement confirmation, controlled planning, clean implementation, testing & validation checkpoints, and milestone-based transparency to ensure a successful outcome. With a strong background in Mobile App Development, Android, and Flutter, I am confident in delivering reliable execution and long-term results. You can view my portfolio here: ⭐⭐ https://www.freelancer.com/u/CodeAnchors ⭐⭐ Could you please share more insights on your top priority or business goal for this project? Feel free to initiate a chat to finalize the scope smoothly. Best regards, Muhammad Anas Khan

@khurshid040462

Hello, I can customize your white-label marketplace app into production-ready Android and iOS releases, including Galli Maps, eSewa payments, OTP authentication, complete branding, package and bundle configuration, private repository delivery, README documentation, and a handover walkthrough. I can also assess Firebase, Supabase, or Node.js based on your marketplace workflows, scalability, and maintenance needs. A useful improvement would be adding a configurable provider abstraction for maps, payments, and OTP, making future Nepal-specific service changes easier without major rewrites. I will structure the implementation around clear milestones and production testing for both platforms. Please share the current codebase architecture and existing backend documentation so the customization plan can be aligned accurately. Thank you, The development team

@ZohaibRoy

⭐⭐⭐⭐⭐ Create a White-Label Marketplace App for Android and iOS ❇️ Hi My Friend, I hope you are doing well. I reviewed your project requirements and see you are looking for a Mobile App Developer for a white-label marketplace app. You need not look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for mobile applications. I will customize your existing codebase and ensure it is production-ready for both Android and iOS. ➡️ Why Me? I can easily create your marketplace app as I have 5 years of experience in mobile app development, focusing on Flutter and React Native. My skills include app customization, payment integration, and user authentication. I also have a strong grip on backend solutions like Node.js and Firebase, allowing me to provide a complete package for your project. ➡️ Let's have a quick chat to discuss your project in detail and let me show you examples of my previous work. Looking forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Mobile App Development ✅ Flutter ✅ React Native ✅ Payment Integration ✅ SMS Authentication ✅ Galli Maps Integration ✅ App Branding ✅ Code Customization ✅ Backend Solutions ✅ Project Management ✅ Quality Assurance ✅ Source Control Waiting for your response! Best Regards, Zohaib

@invoketech

Hello, we have experience with FLUTTER, WHITE-LABEL MARKETPLACE & PAYMENT INTEGRATION and can provide relevant examples. I have 10+ years of experience and have carefully reviewed your requirements. We can customize your existing marketplace codebase and prepare a stable, production-ready Android and iOS application. WORKING FLOW: Codebase Review → Audit the existing Flutter/React Native project and understand its architecture and current integrations. Maps Integration → Replace the existing map provider with Galli Maps and ensure reliable location functionality for Nepal. Payments & OTP → Integrate eSewa payment gateway and reliable OTP/SMS authentication with proper error handling. White-Label Customization → Update logo, colors, app name, package/bundle IDs, notifications, configurations, and store-ready branding. Testing & Handover → Test Android/iOS builds, payments, OTP, maps, and marketplace flows, then provide source code, README, build instructions, and walkthrough video. I can work with your existing codebase and focus on clean customization without unnecessary rebuilding. I will put forth my best effort in your project and deliver it on time with FULL SOURCE CODE, DOCUMENTATION, AND 3 YEARS OF POST-LAUNCH SUPPORT. I eagerly await your positive response. Thanks Invoke Tech

@mughiraaa

Hello, I have already completed similar Flutter marketplace and mobile app projects involving maps, payment gateways, OTP authentication, white label branding, and API integrations. I have strong experience in web development, APIs, and scalable software solutions, so I can quickly understand your existing codebase and deliver exactly what is needed. I can handle Galli Maps, eSewa, OTP verification, full branding, Android and iOS release setup, backend integration, documentation, and handover. I would recommend Flutter with Node.js for this project because it keeps both mobile platforms under one codebase while giving flexibility for marketplace APIs and future growth. Is the current white label app already using Flutter or React Native, and what backend is currently connected to it? Let us schedule a quick meeting to review the codebase and requirements. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@crtvecode

I see you're looking to customize a white-label marketplace app, specifically with Galli Maps and eSewa integration. And I'll focus on setting up those maps and payment gateway correctly while also implementing OTP verification for user authentication. Given your requirements, I suggest using Flutter for a single codebase that works for both Android and iOS, which will really simplify your development process. I can complete the work first, so you can test everything before making any payments, you’ll only award the project once you’re satisfied with the results—no risk on your end. My bid for this project is 329 USD, and I'm ready to go ahead and start immediately. Rajavel - Your go-to for Flutter and cross-platform solutions, and I’m looking forward to collaborating with you!