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I’m building a unified platform that lets customers book services, manage their own profiles, and chat with providers from any device. I need the full package—native-quality iOS and Android apps plus a responsive web app—running off a single, well-structured backend. The must-have features are already defined: a smooth booking system, rich user profiles, and real-time in-app messaging. Each experience has to feel consistent no matter where the user signs in, so shared authentication, synced data, and push notifications are critical. Clean code, modern UI patterns, and scalable architecture matter more to me than the specific framework you choose; I’m happy with React Native, Flutter, Kotlin/Swift + React, or any comparable stack as long as it ships reliably. Deliverables I’ll be looking for: • iOS app ready for App Store submission • Android app ready for Google Play release • Fully responsive web application deployed to production • Common backend (API, database, basic admin panel) that ties everything together • Booking flow, profile management, and messaging working end-to-end • Source code and deployment documentation If you’ve shipped cross-platform products with these core features before and can guide me through store approvals and launch, I’d love to see your approach and timeline.
Project ID: 40515510
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325 freelancers are bidding on average $499 USD for this job

⭕⭕⭕Cross-Platform Booking Platform Development⭕⭕⭕ Hello, I’ll develop a complete cross-platform solution with iOS, Android, and web applications powered by a scalable backend, featuring seamless booking, profile management, and real-time messaging. Key features Booking Management System, User Profile Management, Real-Time Chat & Messaging, iOS App Development, Android App Development, Responsive Web Application, Secure Authentication, Push Notifications, Admin Dashboard, API & Database Development, Scalable Architecture, Source Code & Documentation READY TO START WORK IMMEDIATELY!!!!! Thanks Shweta!!!!
$500 USD in 7 days
9.8
9.8

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need to build a unified platform for service providers and customers. Your goal of creating a seamless booking system, rich user profiles, and real-time messaging across all devices aligns perfectly with my background in developing high-performance solutions for over 1 million users and creating high-security FinTech systems. In terms of strategy, ensuring shared authentication, synced data, and push notifications will be crucial for maintaining consistency across platforms. I have successfully built and scaled complex systems with similar requirements, guaranteeing a reliable and secure end product. I encourage you to reach out so we can discuss your project in more detail and create a roadmap for its successful execution. I am confident in my ability to deliver native-quality iOS and Android apps, a responsive web application, and a well-structured backend that ties everything together seamlessly. Let's work together to bring your vision to life.
$600 USD in 20 days
9.1
9.1

Hi — Elias here from Miami. I understand you’re building a platform for customers to book services and manage profiles. This unification is crucial for user experience and operational efficiency. What usually matters most here is ensuring the system can handle many users seamlessly while allowing easy management of services. A common issue in systems like this is balancing user roles and permissions, especially when scaling. It looks straightforward initially, but ensuring backend integrations and frontend responsiveness remain stable as user numbers grow can be tricky. My approach would involve creating a modular architecture. This allows for future expansion and simplifies maintenance. I’d focus on setting up a robust API for mobile and web interactions, ensuring both platforms communicate efficiently without lag. Drawing from my experience with similar service platforms, I can foresee potential bottlenecks and address them early. A few questions to better understand the scope: Q1 – What specific user roles do you envision, and how will their permissions differ? Q2 – Are there any third-party services or APIs you plan to integrate for booking or payment processing? Q3 – What are your scaling expectations in terms of user growth over the next year? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$500 USD in 5 days
8.7
8.7

Hello, I will deliver your iOS app, Android app, and responsive web app — booking system, user profiles, and real-time messaging — all powered by a single backend with shared auth and synced data across every platform. For real-time messaging, I will use WebSocket connections with offline message queuing so conversations stay intact even when users lose connectivity. Messages sync the moment they reconnect — this prevents the frustrating "lost message" problem that plagues most chat implementations on mobile networks. Questions: 1) Do you have a preferred payment gateway for the booking flow, or should I recommend one based on your target market? 2) Will providers set their own availability schedules, or will you manage time slots from the admin panel? Looking forward to your response. Best regards, Kamran
$276 USD in 10 days
8.5
8.5

Hello, I hope you’re doing well. My name is Vishal Nasit, and I represent OM Infowave Software Pvt. Ltd. We are a 10+ years experienced IT firm specializing in website and mobile application development. We have successfully delivered many high-quality apps and websites for clients across different industries. ? Our Expertise Design & Frontend • Photoshop, Figma • HTML, CSS, JavaScript, jQuery • Bootstrap Website Development • PHP • Laravel • CodeIgniter • React.js • MySQL Database Mobile Application Development • Android • iOS • Flutter (Cross-platform) ✅ Why Choose Us • 10+ years of industry experience • Clean, scalable, and secure code • Modern UI/UX design • On-time delivery & regular updates • Long-term support after project delivery ? Our Approach 1. Understand your exact requirements 2. UI/UX design approval 3. Development with regular milestones 4. Testing & quality assurance 5. Final delivery and deployment 6. Ongoing support if required ? Cost & Timeline • Cost: Depends on project scope and features • Timeline: Will be shared after requirement discussion • Availability: Immediate start I would be happy to discuss your project in detail and provide a precise quote and timeline based on your needs. Looking forward to working with you. Best regards, Vishal Nasit OM Infowave Software Pvt. Ltd.
$350 USD in 15 days
8.5
8.5

Hi there, You’re not just building an app , you’re trying to make bookings, profiles, and conversations feel identical on every screen, and that’s where most platforms break. I can help you unify the iOS, Android, and web experience around one solid backend so authentication, synced data, messaging, and push notifications all stay reliable. I’ve built service and booking platforms with React, PHP/MySQL, API integrations, and admin panels, and I’d approach this with a clean architecture that keeps the mobile apps and web app consistent while staying scalable. 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. I can also guide the App Store and Google Play release process so launch issues don’t surface late. Would you like the backend shaped for a single API first, or do you already have a preferred data model for bookings, chat, and user profiles? Would you like the backend shaped for a single API first, or do you already have a preferred data model for bookings, chat, and user profiles? What are your plans for real-time messaging , WebSockets, Firebase, or another service? Do you want the admin panel limited to operations, or should it include provider management and booking controls too? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad
$250 USD in 10 days
8.2
8.2

I can build your full service provider platform: Flutter apps for iOS and Android plus a responsive React web app, all on one backend. Key features: smooth booking system, rich user profiles, real-time in-app messaging with push notifications, and consistent data sync across all clients. Stack: Flutter + React + Laravel/Node REST API + admin panel. I'll handle App Store and Google Play submission, deployment documentation, and clean modular source code. I have shipped cross-platform products with booking flows, profile management, and messaging. I'll guide you through store approvals and launch. Happy to share portfolio examples and discuss preferred stack. Regards, Harsh Thoriya
$500 USD in 7 days
8.6
8.6

Hi, your "Service Provider App & Website" project is right in my wheelhouse. I develop modern JavaScript apps end to end — React/Vue/Next on the front and Node/Express on the back, in TypeScript where it helps. Working with php, iphone, android, web development, react native, flutter, api development, I focus on responsive, fast UIs, clean component structure, and reliable APIs — no page-builder shortcuts. I can lock down the scope and key flows first, then ship in reviewable increments. Can we hop on a quick chat to align on your requirements? ⭐ 5.0/5 from a recent client: "This was wonderful experience and I also got an addtional choice of updating budget and other features which was not available in the old version of my existing software that I used to perform my d…" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$600 USD in 10 days
7.9
7.9

I HAVE SUCCESSFULLY BUILT AND LAUNCHED CROSS-PLATFORM BOOKING & MESSAGING PLATFORMS WITH WEB, iOS, AND ANDROID APPS USING A SHARED SCALABLE BACKEND Your project requires more than just app development—it needs a unified ecosystem where booking, profiles, messaging, notifications, and user data remain perfectly synchronized across mobile and web platforms. ✔ Native-quality iOS & Android apps (Flutter or React Native) ✔ Responsive Web Application ✔ Secure Authentication & User Management ✔ Advanced Booking & Scheduling System ✔ Rich User Profiles & Account Management ✔ Real-Time Chat & Push Notifications ✔ Shared Backend APIs & Database ✔ Admin Dashboard for User & Booking Management ✔ Scalable Cloud Infrastructure ✔ App Store & Google Play Submission Support Development Approach: 1. UI/UX & Architecture Planning 2. Backend API & Database Development 3. Mobile App Development 4. Web App Development 5. Real-Time Messaging Integration 6. Testing, QA & Security Review 7. Deployment & Store Submission Deliverables: ✅ iOS App (App Store Ready) ✅ Android App (Google Play Ready) ✅ Production Web Application ✅ Backend API & Database ✅ Admin Panel ✅ Complete Source Code ✅ Deployment & Technical Documentation ✅ 2 Years Free Ongoing Support Post Launch I focus on clean architecture, maintainable code, and a seamless user experience across all platforms to ensure long-term scalability and reliability. Best Regards
$250 USD in 7 days
8.2
8.2

Hello, I can build your unified booking + messaging platform with a single backend powering iOS, Android, and web—ensuring a consistent, scalable experience across all devices. ✔ Proposed solution: • Cross-platform apps (recommended: Flutter or React Native) • Responsive web application sharing the same backend • Single API-driven architecture for all clients ✔ Core features included: • Secure shared authentication (email/OTP/social optional) • Service booking system (real-time availability + confirmations) • User/provider profile management • In-app real-time chat (WebSockets / Firebase / similar) • Push notifications (iOS + Android + web) • Synchronized data across all platforms ✔ Backend system: • Scalable REST/GraphQL API • Central database • Basic admin panel for user/service management • Modular architecture for future feature expansion ✔ Deliverables: • iOS app ready for App Store submission • Android app ready for Google Play release • Fully responsive production web app • Fully functional backend (API + database + admin panel) • End-to-end booking + messaging flow working • Clean source code + deployment documentation ✔ Approach: I will prioritize a clean, scalable architecture so the booking system, profiles, and messaging remain fast and stable even as the platform grows. I can start immediately and share a detailed technical plan and timeline after reviewing requirements in more detail. Best regards, Muhammad Rizwan LA
$500 USD in 7 days
8.2
8.2

Hi, I have 5+ years of experience in Flutter. I will design and develop a fully functional Flutter mobile application for your business. The app will be cross-platform, responsive, and optimized for both Android and iOS. I will ensure smooth navigation, clean UI, and reliable performance. My Skills Include: a) Flutter Development – Expertise in building cross-platform mobile apps with responsive UI. b) State Management – Experienced in Provider, Riverpod, and Bloc for scalable apps. c) Backend Integration – Skilled in connecting apps with REST APIs, Firebase, and third-party services. d) Database Handling – Proficient in Firebase Firestore, MySQL, and SQLite. e) Deployment & Support – Experienced with publishing apps on Google Play Store and Apple App Store. Please share your ideas or reference apps, and I’ll help bring your vision to life. Lets connect in chat so that We discuss further. With Regards, Sai
$280 USD in 10 days
7.8
7.8

✨✨✨✨Unified Booking, Profile & Real-Time Messaging Platform (Web + Mobile)✨✨✨✨ Hello, I'll design and develop a full-scale cross-platform solution that unifies iOS, Android, and Web into a single ecosystem powered by a scalable backend, ensuring seamless booking, real-time communication, and synchronized user experiences across all devices. Key Features ➥ Cross-platform iOS & Android apps with native-quality performance. ➥ Fully responsive web application with consistent UI/UX. ➥ Centralized backend (API + database + admin panel) for unified data control. ➥ Real-time messaging system between customers and service providers. ➥ Advanced booking system with scheduling, availability, and confirmations. ➥ Shared authentication, push notifications, and synced user profiles. READY TO START WORK IMMEDIATELY!!!!! LETS CHAT.........
$370 USD in 7 days
8.2
8.2

Hi, We’ve built several service provider platforms with features like booking systems, user profiles, and in-app messaging. One of our products, Concio, connects service providers with users and includes a fully integrated web app, native iOS and Android apps, and a robust admin panel. We also developed a separate product called Descripio, where we implemented a real-time chat feature using WebSockets, allowing users to send messages and schedule calls with experts. For your project, we can use either React Native or Flutter for the front end, and we have strong expertise in both. We also have dedicated backend developers who can work with Node.js, PHP, or Python, depending on the specific requirements. 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 your exciting project. Best regards, Adil
$494.19 USD in 7 days
7.6
7.6

Hi, I can help you build a high-quality Flutter mobile application with clean UI/UX, fast performance, and scalable architecture. I have strong experience in Flutter app development, API integration, Firebase, custom backend systems, ERP/CRM integration, and eCommerce/mobile solutions. ✅ Cross-platform Android & iOS apps ✅ Clean and responsive UI/UX ✅ API & payment gateway integration ✅ Admin panel & backend support ✅ Fast communication & on-time delivery ✅ Long-term maintenance support I focus on delivering stable, user-friendly, and production-ready applications with complete client satisfaction. Let’s connect and discuss your project requirements in detail. Thanks, Ambient Infotech
$500 USD in 7 days
7.8
7.8

Hi I have strong experience building cross-platform service platforms with Flutter, React Native, responsive web apps, secure backend APIs, real-time messaging, booking workflows, push notifications, shared authentication, and admin dashboards. The main technical challenge here is keeping iOS, Android, and web experiences fully synchronized while users book services, manage profiles, chat with providers, and receive updates in real time. I can solve this by designing one clean backend with structured APIs, shared user/provider data, role-based access, real-time messaging channels, and notification logic connected to all clients. For the mobile apps, I can build native-quality screens for booking, profiles, chat, alerts, and account management using Flutter or React Native depending on your preference. For the web app, I will create a responsive interface that mirrors the same user flow and connects to the same backend and database. The admin panel can manage users, providers, bookings, messages, and basic operational controls. I will also provide clean source code, deployment documentation, and support for App Store and Google Play submission preparation. Thanks, Hercules
$500 USD in 7 days
7.4
7.4

Hi there, I have read your project requirement. You need a unified cross-platform solution with iOS, Android, and a responsive web application powered by a common backend. The platform will provide seamless booking, rich user profiles, and real-time messaging with synchronized data, shared authentication, and push notifications across all devices. We will build a scalable architecture using Flutter or React Native with a centralized API and database, ensuring a consistent user experience and smooth deployment to the App Store, Google Play, and web production. To proceed, I need to confirm: ======================== Do you already have UI/UX designs, or should we create them from scratch? Will the booking system require availability calendars and payment integration? Should messaging support media/file sharing or text-only chat initially? Do you need multiple user roles (customer, provider, admin) with separate dashboards? Best Regards, SrashtaSoft Team
$500 USD in 7 days
7.2
7.2

Hi! My name is Marjan and I'm here to offer you my services as a skilled applicant with over a decade of experience working on Freelancer.com. l believe I am the best fit candidate for this project due to my extensive experience; I would like to have a discussion to get to know that we both are on the same page. Once the scope will be locked, I will start working on it right away.
$250 USD in 7 days
6.7
6.7

Hello Unified platform scaling needs robust architecture. Integration bottlenecks slow user growth. Past work includes building modular SaaS backends for high-volume custom data processing, cutting latency 40%. Ready to stabilize your core infrastructure and streamline your workflow. Available for call today to discuss technical roadmap. Giáp Văn Hưng
$750 USD in 7 days
6.8
6.8

Hi, I’m excited to help build your unified service platform with a single, scalable backend and consistent experiences across iOS, Android, and web. I’ll deliver native-quality mobile apps (iOS/Android) and a responsive web app, all backed by a shared API and database, real-time in-app messaging, a smooth booking flow, rich user profiles, and push notifications. I favor a modular stack that keeps the backend clean and extensible: a REST or GraphQL API, a robust authentication layer, PostgreSQL or Prisma, Redis for sessions and caching, and WebSocket or push for real-time messaging. For cross-platform delivery I can choose React Native or Flutter, with native bridges as needed for performance, plus a responsive admin panel for management. I’ll provide end-to-end delivery: architecture, API contracts, database schema, UI/UX patterns, CI/CD, device-ready builds, store submission guidance, and production deployment docs. A phased timeline I typically follow: Phase 1 core backend and MVP apps, Phase 2 booking and profiles, Phase 3 messaging and notifications, Phase 4 QA, polish, and store submissions. I’ve shipped cross-platform products with these features before and can guide you through approvals and launch planning. Best, Justin
$500 USD in 7 days
6.8
6.8

Dear Hiring Manager, Thank you for sharing the project details. I understand that you are looking for a modern, professional, and adaptable solution that performs seamlessly platforms and is delivered in all the required formats to support long-term scalability and maintenance. I am confident that my experience and attention to detail will allow me to deliver a high-quality solution that meets your expectations. I prioritize clear communication, timely delivery, and a collaborative approach throughout the project lifecycle. I'd be happy to discuss your needs further and answer any questions you may have. Please feel free to contact me via messaging, and we can find the best way to achieve your project goals. I look forward to hearing from you. Best regards, Jitendra
$500 USD in 10 days
6.9
6.9

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