Cross-Platform Fitness Progress Tracker

I need a clean, intuitive fitness app whose single, central purpose is progress tracking—no meal plans or workout libraries, just rock-solid data capture and easy-to-read insights. Users must be able to record their weight, log the performance of every workout, and store body-measurement snapshots, then view trends over time through charts and simple stats. I'd like the same codebase (or tightly aligned builds) deployed to iOS, Android, and a responsive web dashboard so clients can update data from any device. Feel free to recommend React Native, Flutter, or another modern stack that will keep maintenance fast and cost-effective; what matters is a fluid UX, secure cloud sync, and the flexibility to add new metrics later. Acceptance criteria • iOS, Android, and web versions released to TestFlight / internal Google Play track / staging URL • Weight, workout-performance, and body-measurement logging flows fully functional and syncing across devices • Visual progress reports (line and bar charts) rendering in under two seconds on average mobile hardware • Basic account system with email or social sign-in and GDPR-compliant data storage • Brief technical hand-off document and a walkthrough call so I can continue enhancing the product on my end If you've shipped similar data-driven health apps or have strong cross-platform chops, I'd like to see your work and discuss timelines right away. Project ID: 40697022 3 proposals Open for bidding Remote project Active 7 secs ago Bid amount Email address Set your budget and timeframe It's free to sign up and bid on jobs 3 freelancers are bidding on average ₹207 INR/hour for this job As a seasoned full-stack developer with over eight years of experience, I'm confident in my ability to craft your desired cross-platform app. My specialization in developing intuitive, scalable websites and mobile applications includes iOS Development and JavaScript, allowing me to provide exactly what you seek. I also have strong skills in AI-powered solutions and REST API integrations which will ensure streamlined data capturing, syncing, and rendering. What sets me apart from others is my unwavering dedication to delivering high-quality products that address your unique business needs and user expectations. I thrive in transforming ideas into tangible digital solutions that make a real impact not just for now but for the long run. Beyond the development phase, my commitment extends to providing ongoing technical support whenever needed. From cloud deployment to database design, I cover all the bases necessary for a seamless, secure, and high-performing user journey. If you're looking for someone who can be trusted to not only deliver what's required but also go above and beyond to add value to your project, then look no further. I bring the technical expertise combined with the entrepreneurial mindset needed to make your project thrive. Let's dive deeper into this transformative project together! ₹100 INR in 40 days Hi there, For this progress-tracking fitness app, I'd recommend Flutter + Supabase/PostgreSQL so iOS, Android, and the responsive web dashboard can share one maintainable codebase while keeping the architecture flexible for additional metrics later. I'll build secure account/authentication, weight logging, workout-performance tracking, body-measurement snapshots, cross-device cloud sync, and clear progress dashboards with optimized line/bar charts. I'll keep the data model structured for future metrics and use efficient queries, caching, and lightweight chart rendering to meet the under-two-second performance target on typical mobile hardware. I'll work through milestones: UX/data architecture → authentication & sync → tracking modules → charts/insights → responsive web dashboard → GDPR/security setup → iOS/Android/web QA → TestFlight, Google Play internal testing, and staging deployment. Best regards, Akif S ₹400 INR in 30 days Navi Mumbai, India