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I run a chain of clubs and need a mobile app that lets members book their workout or class slots without calling reception. The same build must run smoothly on both iOS and Android. Core flow • A member signs in, the app pings our existing REST API and confirms whether the membership is active or expired. Only active members can continue to the booking screen. • The timetable shown in the app is generated from values we control: slot start time, end time, duration and the maximum number of people allowed per slot are all parameters I want to adjust from our back-office system and have reflected in real time. Each club to be manageable separately through back office. • Members choose a free slot, receive a push notification as a reminder, and can cancel or reschedule inside the app—changes should immediately free or re-allocate the place in the same slot table. Technical expectations I’m open to React Native, Flutter or separate native builds as long as the user experience stays consistent across platforms and the codebase is maintainable. The app must talk to our API using token-based authentication; we’ll supply endpoint documentation and test keys. No direct database connections or manual uploads—everything lives behind the API. Testing will first be done using excel data. Deliverables 1. iOS and Android build ready for App Store / Google Play submission 2. Well-documented source code with clear instructions for internal hand-off 3. Integration with our API for login, membership status and slot data 4. Push notification set-up (Firebase/APNs) for booking reminders 5. Staging build for user acceptance testing plus a short test plan outlining success criteria I’d like iterative milestones so we can review the booking flow, API calls and notification logic early, then move on to polish and store deployment.
Project ID: 40733416
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439 freelancers are bidding on average $1,089 USD for this job

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, API Integration, Flutter, iOS Development, Mobile App Development, PHP, React Native, iPhone, Mobile App Testing As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$1,125 USD in 60 days
9.6
9.6

Hi — Elias here from Miami. I understand you're looking to develop a mobile app for your club chain that allows members to book workout or class slots efficiently. The goal is to create a seamless user experience while ensuring the system can manage multiple bookings and member interactions smoothly. What usually matters most here is scalability and user role complexity. A common issue in booking systems is managing real-time availability while integrating with existing backend services. The tricky part is ensuring the app remains responsive even under high user traffic. To tackle this, I would focus on a robust architecture using React Native for cross-platform compatibility, along with a solid API for backend integration. This ensures the app is maintainable and can be expanded in the future. Stability and reliability will be priorities to enhance user trust. I've worked on similar booking applications, which required intricate state management and user role definitions, allowing me to anticipate potential pitfalls. A few questions to better understand the scope: Q1 – What specific user roles and permissions do you envision for the app? Q2 – Are there existing systems for class scheduling that we should integrate with? Q3 – What are your expectations regarding scalability as your club network grows? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$1,200 USD in 6 days
8.9
8.9

Hi there, I understand you need a reliable appointment booking app for your club chain. My solution is a cross-platform app built with React Native, ensuring a seamless experience on both iOS and Android with a single codebase. It will include a user-friendly booking flow, real-time slot management, and a secure backend API integrated with your system. - Robust booking system with real-time availability. - Clean, intuitive interface for easy member use. - Secure backend integration and comprehensive testing. This approach delivers a stable, maintainable app tailored to your needs. Best Regards, Khorshed Alam, RS Software
$1,200 USD in 6 days
9.5
9.5

Hello, My name is Omer and I understand the unique requirements of your project. With my extensive experience in Flutter, native iOS/Android, backend systems, and REST APIs, I'm confident I can build a seamless cross-platform app for your club booking needs. Being skilled in Firebase, I can easily integrate push notifications for booking reminders and construct a back-office system that would enable you to manage each club individually. Furthermore, as a seasoned developer, I prioritize performance, scalability, and maintainability of the applications I design - values that align closely with your project goals. My clean coding habits will ensure you receive a well-documented source code and clear instructions for internal hand-off that your team can easily maintain and update. Finally, my ability to turn ideas into production-ready solutions and my steadfast commitment to client satisfaction make me an ideal fit for your iterative milestone-based approach. By testing our progress against your success criteria at every stage, we can make sure that the final product meets and exceeds your expectations. Reach out if you'd like to discuss some more!
$1,500 USD in 20 days
8.9
8.9

Hi, With almost two decades of expertise in mobile app and web development, IT Flex Solutions India is exceptionally equipped to bring your Club Appointment Booking App to life. Our adeptness in Android, iOS Development, React Native, and Flutter aligns perfectly with your requirement for a mobile app that works seamlessly on both platforms. Your need for push notification set-up and token-based authentication is right within our wheelhouse. Over the years, we have integrated various APIs and delivered projects with similar functionality that aligns parallelly with the expectations you have expressed. What sets us apart, however, is our commitment to delivering the best user experience paired with a maintainable codebase—an attribute crucial for your long term satisfaction. Additionally, our dedication towards iterative milestones will ensure that you have full visibility into the design process every step of the way. We understand how important it is for you to be able to review the booking flow, API calls, and notification logic early on. Thanks, SBM
$1,200 USD in 25 days
9.1
9.1

Could you share the REST API documentation and test keys, including the membership validation and slot-booking endpoints? How is the back-office system currently managing each club’s timetable, capacity, and slot availability, and will those APIs already support real-time updates? For the Excel-based testing, will you provide the sample data and expected booking scenarios? Also, do you have any preferred choice between React Native and Flutter, or should we recommend the stack based on your existing API and long-term maintenance needs?
$1,190 USD in 7 days
9.0
9.0

Hi, CnEL India can build your cross-platform club appointment booking app using React Native, with the existing REST API as the only data source. Our methodology: * Review the API documentation, authentication flow, membership status and slot endpoints. * Define member, club, timetable, booking, cancellation and rescheduling workflows. * Build a clean React Native app for consistent iOS and Android experience. * Implement token-based authentication and allow booking only for active memberships. * Connect real-time slot availability, capacity and club-specific timetable data through the API. * Implement booking, cancellation and rescheduling with immediate API updates. * Configure push reminders using Firebase/APNs. * Handle API errors, expired sessions, unavailable slots and booking conflicts clearly. * Keep all data access behind the supplied API with no direct database connection. * Create a staging build and test plan using the provided Excel/test data. * Test booking capacity, concurrent changes, notifications, cancellations and rescheduling. * Prepare production builds, source documentation and App Store/Google Play submission guidance. We would start with API validation and the core booking flow, then add notifications, edge-case testing, polish and store-ready builds through milestones.
$1,125 USD in 15 days
9.0
9.0

React Native | iOS & Android | REST API | Push Notifications Hi, Thanks for sharing the details. You have explained your requirements very clearly. I can build the cross-platform booking app with React Native, integrating your existing REST API with token-based authentication for login, membership validation, timetable/slot availability, bookings, cancellations, and rescheduling. The app can support separate club management, real-time slot capacity updates, push reminders through Firebase/APNs, and a clean booking experience across iOS and Android. I’ll also provide a staging build, test plan, documented source code, and support for store submission. I’d be happy to start with an API integration and booking-flow milestone so you can validate the core functionality early. Thanks! Purnima
$1,125 USD in 12 days
8.2
8.2

Hi, I can build your club booking app in Flutter for iOS and Android. On sign-in the app calls your REST API to check membership status and only active members reach booking. The timetable is generated per club from back-office parameters (start, end, duration, max people per slot) and refreshes in real time via WebSockets or FCM data messages. Members book a free slot, get push reminders, and can cancel or reschedule, with capacity freed or reallocated atomically so slots never overbook. If your back office lacks slot settings or booking endpoints, I can build them in Laravel. Can you share your API docs and how many clubs you have? Regards, Harsh Thoriya
$1,125 USD in 7 days
8.6
8.6

Hello, I can help you with "Club Appointment Booking App" as per your given project description. We can discuss more in detail during a chat conversation when you are available. I've worked on many PHP projects in recent times. So I am confident on achieving your expected Goals. Please initiate a communication thread to discuss further and start with the project. ⭐ 5.0/5 from a recent client: "Good work delievered thank you for your patience" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$900 USD in 18 days
8.0
8.0

Hello, I can help deliver the club booking experience with API-based authentication, membership validation, real-time slot availability, cancellations, rescheduling, and booking reminders across iOS and Android. I’ll structure the work into milestones covering the booking flow, API integration, notification logic, staging UAT, documentation, and store-ready builds. A useful improvement would be adding idempotent booking operations to prevent duplicate reservations during network retries. Check out my portfolio here:- https://www.freelancer.com/u/installerpoint Best Regards, Muhammad Adeel
$780 USD in 6 days
8.1
8.1

Hi Sir Madam I am a Flutter developer with 5 plus years of experience building booking and membership based mobile applications. I recommend Flutter for iOS and Android because it provides one maintainable codebase with consistent performance across both platforms. Skills Flutter Dart REST API Token Authentication Firebase APNs Notifications Booking and slot management iOS and Android deployment Testing and debugging I can build the complete member flow including login, membership validation, timetable, slot capacity, booking, cancellation and rescheduling. All data will remain behind your existing API with no direct database access. Each club can have its own schedule, duration and capacity controlled from your back office. Booking changes will immediately update availability through the API so slot capacity stays accurate. I will configure push reminders using Firebase and APNs, provide a staging build for UAT and test the initial flow using your Excel data. Milestones API and login Booking and slot flow Notifications and testing Polish and store deployment You will receive complete source code, iOS and Android builds, setup instructions and a short test plan. Published apps EasyBalance App Store Wynette Logistics App Store MyKidsEdu App Store We can review the API documentation and start with the booking flow. Thanking you All the very best Cheers
$1,000 USD in 20 days
7.9
7.9

Hi, I will build your club appointment booking app using Flutter so members on both iOS and Android get the exact same smooth experience from a single codebase. I will connect your app to your existing REST API using token based authentication so member sign in checks active memberships instantly and blocks expired ones before they reach the booking screen. The dynamic timetable will pull live slot start time, end time, duration and capacity values directly from your back office parameters, and every club will have its own separate management view. For day to day use, members can pick a free slot, handle cancellations or rescheduling which instantly frees up space in the slot table, and receive push reminders through Firebase and APNs. We can start testing with your excel data against the endpoints before going live. As a smart addition, I will also include local caching for offline slot viewing so members inside the club with poor reception can still see their active booking details without errors. How will the back office handle time zone differences if members travel between your different club locations? Best, Salma Noreen
$7,247 USD in 53 days
8.6
8.6

Hi! The scope here is well-defined and this kind of build is solidly in our lane. Before I put a firm proposal together, the one thing I need to understand is your existing REST API's current state. You mention supplying endpoint documentation and test keys — but the effort shifts depending on how complete that coverage actually is. If login, membership validation, slot retrieval, and booking writes are all already exposed and stable, we plug in cleanly. If some of those endpoints still need to be built or adjusted on your side, we need to know who handles that and how it's coordinated, because it directly affects what we can test at each milestone. On how we'd build it: React Native is our honest recommendation — one codebase, true iOS and Android parity, and a mature ecosystem for exactly what this app needs: token-based auth, push notifications via Firebase and APNs, and real-time slot state. Each club's timetable parameters would pull from your back-office through the API, so changes reflect immediately without a release cycle. Cancellations and reschedules would update slot availability in the same call, keeping counts accurate. Milestones would follow your preferred structure: API integration and booking flow first, so you can validate the core before we move to polish and store submission. Looking forward to hearing more about the API's current coverage. Gustavo & the DoTheCode team
$1,000 USD in 20 days
7.9
7.9

Hello, Greetings Hope you are doing well. I am a Mobile Application developer with over 5 years of experience. I am confident in my ability and skills to develop high-quality Mobile apps and would like to work on your club appointment booking app project. I will complete the work as per your requirements. I want to discuss more this project to prepare the final concept. So let’s discuss this in detail over chat then will make plans to start work on it. Waiting for your earliest reply. Thanks. Shubham
$750 USD in 18 days
8.0
8.0

As someone with a keen focus on producing software that helps businesses operate, grow, and scale, I am confident that I can provide the solutions you need for your club appointment booking app. With extensive experience in Android and iOS development as well as proficiency in both React Native and Flutter frameworks alongside API Integration skills, I can ensure a seamless and consistent user experience across platforms while integrating your existing REST API effectively to manage membership status and slot data. My expertise also extends to PHP and mobile app development, skills which are further bolstered by my inclusive understanding of designing Business Automation Systems, Custom Web Applications among others. Moreover, I understand the complexities of your project demand incremental milestones for rigorous review. I assure you, not only will I establish an effective booking flow, API calls, and notifications logic but continuously seek your input throughout the process ensuring that everything is up to your satisfaction while adhering to standards for App Store / Google Play submission. Lastly, our working ethos aligns perfectly with your requirement for long-term partnerships. With technology evolving rapidly, it is important to build systems that are maintainable and scalable for future growth.
$825 USD in 7 days
7.6
7.6

⭐⭐⭐⭐⭐ Create a Mobile App for Easy Class Booking at Your Clubs ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project details and see you're looking for a mobile app to allow members to book their workout slots easily. You need not look any further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for mobile app development. I will create an intuitive app that connects to your existing REST API, ensuring a seamless experience for your members. ➡️ Why Me? I can easily build your mobile app for class bookings as I have 5 years of experience in mobile development, focusing on user-friendly interfaces, API integration, and real-time updates. My expertise includes React Native and Flutter, ensuring a smooth experience on both iOS and Android. I also have a strong grip on backend integration and push notifications. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Mobile App Development ✅ React Native ✅ Flutter ✅ API Integration ✅ User Authentication ✅ Real-Time Data Management ✅ Push Notifications ✅ App Store Submission ✅ Back-End Development ✅ User Experience Design ✅ Testing & Debugging ✅ Documentation Waiting for your response! Best Regards, Zohaib
$900 USD in 2 days
7.8
7.8

Hi, I’d be happy to build your club booking app for both iOS and Android. I have strong experience with Flutter, Laravel/PHP, REST APIs, authentication, booking systems, push notifications, and admin/back-office integrations. Your requirements fit well with my experience. I can develop: * Flutter iOS & Android app with a consistent UX * Token-based authentication through your existing REST API * Real-time membership status validation before booking * Club-specific schedules, slot duration, capacity and availability * Booking, cancellation and rescheduling with immediate slot updates * Firebase/APNs push notifications for booking reminders * API-only architecture with no direct database access * Staging build and UAT using your Excel test data * App Store & Google Play submission-ready builds * Clean, documented source code for internal handover I recommend working in milestones: first integrate the API and authentication, then build the booking flow, followed by notifications, testing, UI polish and store deployment. This allows you to review the critical booking logic and API integration early. I have built similar mobile platforms involving customer accounts, booking/order management, APIs, payments and third-party integrations, so I can take ownership of the complete mobile implementation. I’m ready to review your API documentation and test keys and start with the first milestone. Best regards, Thi TheApp4U
$1,125 USD in 30 days
7.6
7.6

Hi, Dheeraj here from Dezinestar. We can build your cross-platform club booking app using React Native or Flutter, with a consistent iOS/Android experience and clean, maintainable architecture. We’ll integrate your REST API with token authentication for login and membership validation, display real-time slot availability and capacity per club, and support booking, cancellation, rescheduling, and push reminders through Firebase/APNs. We’ll provide a staging build for UAT, documented source code, test plan, and store-ready builds, following iterative milestones so API and booking logic can be reviewed early. Queries: Please share the API documentation/test keys and confirm the current endpoints for login, membership status, clubs, slots, and bookings. Will the back office already provide APIs for managing each club’s slot timings, duration, and capacity? Should reminders follow a fixed timing, such as 1 hour before the booked slot? For Excel testing, will you provide the sample data/template?
$750 USD in 7 days
7.9
7.9

Hi, I understand you need one consistent booking app for iPhone and Android, connected only through your existing REST API. I will build the sign-in and membership check first, then show club-specific slots based on capacity, timing, and duration settings from your back office. Members will be able to book, cancel, or reschedule, with each change updating availability straight away. I will also set up booking reminders through Firebase/APNs, prepare a staging build for testing with your Excel data, and provide clear source-code and hand-off notes. We can review the API calls, booking flow, and notifications in early milestones before polishing the app and preparing both store builds. Which REST API endpoints and booking rules are already available, including authentication, cancellation limits, and rescheduling conditions? The app will be planned with maintainable Mobile App Development practices for both iPhone and Android, while PHP can be considered where any supporting API-side work is needed.
$1,500 USD in 18 days
7.3
7.3

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