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Cross-Platform Health & Fitness Tracking App (iOS + Android) I'm looking for an experienced mobile app developer or small team to build a modern health tracking application for both iOS and Android. The app should collect wellness and activity data from supported phone sensors and wearable devices, then present it through a clean, easy-to-use interface focused on daily health insights. Main Features - Daily step tracking - Heart rate synchronization - Sleep monitoring and history - Blood oxygen (SpO2) support - Blood pressure synchronization from compatible devices - Calories burned and activity summary - Walking, running, and workout statistics - Daily, weekly, and monthly health reports - Personalized dashboard with health metrics - Push notifications for goals and reminders Device Integration The application should integrate with native health platforms where appropriate, including: - Apple Health / HealthKit - Google Health Connect (or Google Fit where applicable) - Compatible Bluetooth-enabled wearable devices Data should synchronize reliably and refresh automatically whenever new health information becomes available. UI / UX I already have rough wireframes and feature ideas. I'm looking for someone who can create a polished, modern interface that feels native on both iOS and Android. The application should be simple enough for first-time users while remaining visually appealing. Internationalization The app should be built with localization in mind. Initial languages: - English - Spanish All UI text should use a standard localization framework so additional languages can be added without changing application logic. Technical Expectations - Cross-platform development using Flutter or React Native - Clean, maintainable architecture - Well-documented source code - Secure handling of health-related data - Optimized performance and battery usage - Responsive layouts for phones and tablets Deliverables - Production-ready Android and iOS applications - Complete source code - Build and deployment documentation - Documentation for wearable integrations - Instructions for adding additional languages - Assistance with resolving store submission issues if necessary Ideal Experience - Please include examples of previous mobile health, fitness, wellness, or wearable integration projects. - Experience with HealthKit, Health Connect, Bluetooth device integration, and real-time sensor synchronization is highly preferred. My budget is fixed at $150, so please bid only if you're comfortable working within this budget. Include your estimated timeline and relevant portfolio when applying.
Project ID: 40556144
206 proposals
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Active 3 days ago
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206 freelancers are bidding on average $262 USD for this job

Hi, I've built 15+ cross-platform health tracking apps for iOS and Android. You mentioned needing both platforms — we'll handle that with a single codebase approach to keep costs down and launch faster. Message me to discuss your timeline and budget. Regards, Nurul Hasan
$200 USD in 14 days
8.7
8.7

With extensive experience in mobile app development, I understand the need for a modern health tracking app for iOS and Android. I have successfully integrated sensor data and built user-friendly interfaces in past projects. How do you envision the app's unique value proposition standing out in the saturated health and fitness app market? Regards, Yogesh Kumar
$150 USD in 7 days
8.4
8.4

**LET'S BUILD A MODERN HEALTH & FITNESS APP WITH SEAMLESS WEARABLE INTEGRATION.** With 12+ years of experience in cross-platform mobile development, I can build a Flutter-based health tracking app with step counting, heart rate, sleep, SpO2, blood pressure sync, workout analytics, personalized dashboards, push notifications, and integration with Apple Health, HealthKit, Google Health Connect, and Bluetooth wearables. The app will feature a clean, localized UI (English & Spanish), secure health data handling, optimized performance, and well-documented, scalable code with full deployment support. Let's discuss your wireframes, timeline, and project scope to deliver a reliable, production-ready application. I can also share relevant mobile and wearable integration experience.
$250 USD in 7 days
8.4
8.4

Hi, I'm a Flutter developer with experience building health and fitness apps with wearable integrations. Your project is a great fit. I'll build a Flutter app for iOS and Android covering step tracking, heart rate sync, sleep monitoring, SpO2, blood pressure sync, calories, workout stats, and daily/weekly/monthly reports. I'll integrate Apple HealthKit, Google Health Connect, and Bluetooth wearables for real-time sync. English and Spanish will be supported at launch via Flutter's localization framework, with easy additions later. I'll deliver production-ready builds, full source code, integration docs, and store submission support—within your $150 budget. Could you share your wireframes so I can provide a precise timeline? Regards, Harsh Thoriya
$140 USD in 7 days
8.6
8.6

Hello, I can help with your "Health & Fitness App Development" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving php, mobile app development, iphone, android, ui / user interface, ios development, react native, flutter, bluetooth, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. You'll get clean commits and clear documentation. Can we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Very Professional and On time delivery of the project" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
$200 USD in 4 days
8.0
8.0

Hi there, I understand you're building a health data aggregator app. Operationally, it will pull metrics from phone sensors, HealthKit/Health Connect, and direct Bluetooth wearables. This data is then unified onto a personalized dashboard and into historical reports, with a notification system driving user engagement towards health goals. Technical approach: I recommend Flutter for a single, high-performance codebase. We'll use specific packages for HealthKit/Health Connect integration and a Bluetooth LE library for direct device sync. To start, all sensitive health data will be stored securely on-device using a local database. Core modules: A background data sync service, a central dashboard UI for daily stats, a reporting module for trends, a device connection manager for permissions, and a local notification engine for goal alerts. Relevant systems: We designed Movit AI, a fitness and workout tracking app concept, which demonstrates our UI/UX capabilities in this specific domain. Implementation strategy: To fit the budget, we must prioritize an MVP. I'd focus first on HealthKit/Health Connect integration for core metrics (steps, heart rate). We will build the dashboard and reporting views. Direct Bluetooth support would be a fast follow-up, ensuring a stable core product is delivered first. Regards, Rohit
$70 USD in 10 days
8.4
8.4

Good Day! I have carefully analyzed your project and understand you need a cross-platform Flutter or React Native health tracking app with HealthKit, Health Connect, Bluetooth wearable integration, multilingual support, and a modern, user-friendly interface. I have experience building scalable mobile applications with clean architecture, secure data handling, and native health API integrations, ensuring reliable synchronization and a polished experience on both iOS and Android. I am eager to contribute my expertise and deliver top-notch results for your project. Let's discuss the project further in chat or let's have a quick call! Best regards, M Adeel.
$100 USD in 3 days
8.0
8.0

Hello, I am available to build your **modern Salon Appointment Scheduling Web Application** with a clean, user friendly interface and a scalable architecture that simplifies appointment management for both customers and salon staff. Approach: → Develop a responsive salon booking platform using **React/Vue.js** with **Node.js/Laravel/Django**. → Implement online appointment booking, real time availability, and automated email/SMS reminders. → Build an admin dashboard for managing appointments, staff, services, customers, and reports. → Ensure secure, scalable, and mobile responsive development with clean, documented code. → Deliver complete source code, deployment documentation, and post launch support. Flow: Requirement Analysis → UI/UX Design → Database & Backend Development → Booking & Notification Integration → Admin Dashboard → Testing & QA → Deployment → Final Handover Looking forward to your response. Thanks.
$240 USD in 6 days
8.2
8.2

Hi there, We’ve developed several health and fitness apps, including one that tracks daily steps, heart rate, sleep, and more. We also integrated with Apple Health and Google Fit to sync data from wearables and other health apps. For your project, we can use Flutter to create a fully optimized app that works seamlessly on both iOS and Android. We’ll also ensure that the app is responsive on tablets and that the code is clean and maintainable. 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, Adil
$133.87 USD in 7 days
7.6
7.6

I can build your cross-platform health tracking app using Flutter or React Native with native integrations for Apple HealthKit and Google Health Connect. The app will sync steps, heart rate, sleep, SpO2, blood pressure, calories, and workout data from device sensors and supported wearables, then display it in a clean daily/weekly/monthly dashboard. Architecture will be modular with a dedicated data sync layer for health APIs + Bluetooth devices, ensuring reliable background updates and low battery usage. All data handling will follow secure storage practices. UI will be built with a lightweight, native-feeling design system optimized for both phones and tablets, and fully prepared for localization (English + Spanish using standard i18n setup). Deliverables include production-ready iOS/Android apps, complete source code, integration documentation, and deployment support. Timeline: I can deliver an initial working version within the agreed milestone plan after reviewing your wireframes and device targets.
$250 USD in 7 days
7.6
7.6

Hello! As per your project post, you're looking to build an Health and Fitness Tracking Application that gathers wellness data from mobile devices and wearable technologies, then presents personalized health insights through a modern and intuitive interface. The application should provide reliable synchronization with native health platforms, support multiple languages, and deliver a scalable foundation for future health features. My focus will be on delivering a production ready application featuring secure user authentication, personalized health dashboard, step tracking, heart rate, sleep monitoring, SpO2, blood pressure synchronization, calorie and activity tracking, workout statistics, daily, weekly, and monthly reports, HealthKit and Google Health Connect integration, Bluetooth wearable support, automatic background synchronization, push notifications. I specialize in Flutter, React Native, HealthKit, Google Health Connect, Bluetooth Low Energy integration, Firebase, REST APIs, and cross platform mobile application development. My focus will be on building a secure, scalable, and high performance application with accurate health data synchronization and a polished user experience across both Android and iOS. Let's connect to review your wireframes, discuss the supported wearable devices, and define the MVP roadmap for a successful launch. Best regards, Nikita Gupta.
$1,000 USD in 45 days
6.9
6.9

Hello, Thank you for sharing the details. The app idea is clear, but with HealthKit, Health Connect, Bluetooth wearable syncing, reports, localization, and store-ready builds, this is quite a large scope. A realistic approach would be to start with an MVP first, covering the main dashboard, steps, activity summary, basic reports, and Apple/Google health data sync. Then we can add advanced wearable/Bluetooth features in the next phase to keep the app stable and manageable. Best wishes, Warda Haider
$150 USD in 6 days
7.0
7.0

I focus on results, not empty promises. I have a track record of developing mobile health and fitness apps that prioritize user experience and performance. With your health tracking application, I will ensure seamless integration with Apple Health, Google Fit, and compatible wearable devices. I noticed your emphasis on daily health insights, step tracking, heart rate synchronization, and more. My expertise in Flutter development will guarantee a clean, maintainable architecture that optimizes performance and battery usage. You'll be working with a team that values transparency, responsiveness, and delivering exactly what is promised, while focusing on creating a solution that not only meets your immediate goals but continues to perform and add value long after launch. Regards, InterconnectBPO
$150 USD in 7 days
6.8
6.8

Dear Hiring Manager, Thank you for sharing your requirements. I understand you're looking for a cross-platform Flutter application that integrates with HealthKit, Health Connect, and wearable devices to deliver accurate health tracking, seamless synchronization, and a polished user experience across iOS and Android. Implementation Approach: Develop a clean, scalable Flutter app with secure architecture, localization (English/Spanish), and responsive UI for phones and tablets. Integrate HealthKit, Health Connect, Bluetooth wearables, push notifications, and automated synchronization for health metrics and reports. Deliver well-documented source code, deployment guides, wearable integration documentation, and support through app store submission. A few questions: Which Bluetooth wearable brands/devices should be supported in the first release? Will user authentication and cloud backup be required, or should data remain device-based initially? Are the wireframes available in Figma or another design format? I can build a maintainable, performance-optimized application with reliable health data synchronization and future scalability. Can we discuss details? Best regards, Jitendra
$250 USD in 5 days
6.9
6.9

Hello, We would like to grab this opportunity and will work till you get 100% satisfied with our work. We are an expert team which have many years of experience on PHP, Mobile App Development, iPhone, Android, UI / User Interface, iOS Development, React Native, Flutter, Bluetooth Lets connect in chat so that We discuss further. Thank You
$70 USD in 3 days
6.3
6.3

Hi There!!! ★★★★ (I'll build a clean, cross-platform health app with reliable wearable integration and scalable architecture.) ★★★★ I've carefully read your project and understand you need a Flutter or React Native health tracking app for iOS and Android that syncs with HealthKit, Google Health Connect, and compatible Bluetooth wearables. The app should provide accurate health insights through a modern UI while supporting localization, secure data handling, and future scalability. ⚜ Cross-platform app development ⚜ HealthKit & Health Connect integration ⚜ Bluetooth wearable synchronization ⚜ Health dashboard & reports ⚜ Push notifications & reminders ⚜ English & Spanish localization ⚜ Store deployment & documentation I have experience building mobile applications with clean architecture, responsive UI, and API/device integrations. I'll create a smooth, battery-efficient app with secure health data synchronization, modular code, and well-structured documentation for future enhancements. I'll also assist with deployment and resolve any store submission issues if needed. I can start imediately and provide regular progress updates throughout the project. I'd be happy to discuss your wireframes and help turn them into a polished health tracking application. Warm Regards, Farhin B.
$110 USD in 10 days
6.8
6.8

Hello. Thank you for sharing your vision for a cross-platform health and fitness app. Given your fixed budget of $150 and the scope, I propose focusing on delivering a robust MVP that prioritizes seamless data integration and user experience to drive daily engagement and health insights. To align with your business goals, here’s a strategic approach: - Backend: Implement secure synchronization with Apple HealthKit, Google Health Connect, and Bluetooth wearables ensuring reliable, real-time data updates while safeguarding sensitive health information. - Frontend: Develop a clean, intuitive Flutter interface optimized for both iOS and Android, with localization support for English and Spanish, designed for ease of use and visual appeal. - Real-time capabilities: Enable automatic data refresh and push notifications to keep users motivated and informed about their health goals. I bring experience integrating health platforms and building scalable wellness apps with maintainable code and thorough documentation. Could you clarify which Bluetooth devices you prioritize for integration? Also, do you have a preferred timeline for initial delivery? Looking forward to partnering with you to transform your concept into a valuable health tool. Best regards.
$1,500 USD in 10 days
6.5
6.5

Hello, I will develop your HEALTH AND FITNESS TRACKING 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
$120 USD in 15 days
6.6
6.6

Hello there, Hope you are doing well I’d be happy to help develop your cross-platform Health & Fitness app using Flutter, delivering a clean, scalable, and production-ready solution for both Android and iOS. Based on your requirements, I will build a modern application featuring: Daily step tracking, heart rate, sleep, SpO₂, blood pressure, calories, and workout statistics. Integration with Apple HealthKit, Google Health Connect, and compatible Bluetooth wearables where supported. Personalized dashboard with daily, weekly, and monthly health insights. Push notifications for goals, reminders, and activity updates. English and Spanish localization using a scalable internationalization framework. Clean architecture, secure health data handling, responsive UI, and optimized performance. Thanks & Regards Dheeraj K.
$150 USD in 5 days
7.2
7.2

Hi client I have read the project details. I have strong experiences in Flutter and I can start work immediately. I ensure high quality work and good communication. I look forward to hearing from you. Best regards ! Jaffer Alfahdawi
$120 USD in 5 days
6.4
6.4

Franklin, United States
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