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I’m building a mobile application that must run natively on both Android and iOS from a single code-base. The core function is straightforward: once a user verifies their account with a phone number, the app keeps an accurate record of everything they do inside it—specifically each played match, the associated scores, and their complete activity history. Here’s how I picture the flow: a new user lands on the welcome screen, enters a phone number, receives a one-time code, and, once verified, lands on a clean dashboard that shows past matches, scores, and cumulative statistics. Every new match they play is automatically written to a secure database so that historical data is always available for recall, export, or analysis. I’m open to React Native, Flutter, Kotlin Multiplatform, or any comparable cross-platform tech as long as I end up with a single maintainable code-base and native-feeling performance. The backend stack is flexible, too—Firebase, Supabase, or a lightweight custom REST/GraphQL service would all work—so choose what lets you ship quickly while keeping the data secure and easy for me to administer later. Deliverables • Complete Android & iOS builds ready for the stores • Source code with clear setup instructions • Secure phone-number authentication flow • Data models and endpoints covering: user profile, match records, scores, activity log • A basic but polished UI that lists matches and allows simple filtering/search Acceptance criteria • A new user can register and sign in via phone number within 30 seconds or less • Starting a match instantly creates a record; finishing it updates the scores and history • Data persists across reinstall on both platforms • Builds pass store validation with no critical warnings If you have examples of similar cross-platform tracking apps or a quick prototype, feel free to share. Let’s keep communication tight so we can push a working beta quickly.
ID do Projeto: 39990555
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49 freelancers estão ofertando em média ₹29.936 INR for esse trabalho

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert
₹25.000 INR em 7 dias
7,0
7,0

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart and for web and backend on react js and node js, Python Django, Power BI, Scikit-learn, Data Science AI ML, PyTorch, TensorFlow, SparkML , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju
₹25.000 INR em 7 dias
6,5
6,5

Hello, I can build your cross-platform tracking app with a single codebase, complete phone-number authentication, and a secure backend for storing matches, scores, and full activity history. I’ll use Flutter or React Native for smooth native performance and integrate Firebase/Supabase to ensure fast, reliable data sync across devices. The UI will be clean, responsive, and optimized for quick registration and instant match logging. I’ve delivered similar activity-tracking apps before and can get a working beta to you quickly. Happy to share examples and discuss timelines.
₹25.000 INR em 7 dias
6,0
6,0

As an experienced cross-platform developer specializing in React Native and the Expo framework, I am highly adaptable to the tech stack you desire for your project. I can deliver a well-maintainable codebase powered by convenient backend services like Firebase to ensure your user data remains secure, easily accessible, and upgradable. My familiarity with both Android and iOS platforms will enable me to develop bespoke builds tailored for each platform that pass store validation with no critical warnings - giving you peace of mind. In line with your acceptance criteria, I guarantee a robust, secure, and quick phone-number authentication flow, ensuring a new user's ability to register and sign in within 30 seconds or less. Moreover, I can design efficient data models and endpoints covering all aspects of your user profiles, match records, scores as well as activity logs -empowering you with an extensive database for recall, export or analysis.
₹15.000 INR em 7 dias
5,0
5,0

Hello, I’ll develop your cross platform user data tracker with a clean, efficient, and secure structure that works smoothly on both iOS and Android. The app will include organized data input screens, activity tracking, local storage with cloud sync, and a clear dashboard where users can view their logs and progress. I’ll also ensure strong performance, responsive UI, and stable background syncing when needed. Questions: Do you want the tracking data stored locally only or synced to a backend database? Should the app include analytics and charts or keep the interface simple with basic lists? Best regards, Faizan
₹15.000 INR em 7 dias
5,2
5,2

Hello. I'm excited to help you build a mobile application that tracks user activity and match records across Android and iOS. Project Understanding The project involves: - *Cross-Platform Development*: building a native mobile app for both Android and iOS from a single codebase - *User Authentication*: implementing phone number verification and secure authentication flow - *Data Tracking*: designing a system to track user activity, match records, and scores Approach - *Tech Stack*: recommending Flutter for cross-platform development and Firebase for backend services - *Secure Data Storage*: ensuring data persistence across reinstall on both platforms - *Polished UI*: designing a basic but polished UI that lists matches and allows simple filtering/search Relevant Experience With 15+ years of experience in software development, I've successfully delivered numerous projects that involve cross-platform development, user authentication, and data tracking. "Let's work together to build a seamless and secure mobile app that tracks user activity and match records, providing a great user experience and easy administration, with a focus on performance, security, and scalability."
₹22.000 INR em 7 dias
4,9
4,9

Hello, I can build your cross-platform mobile app using Flutter or React Native with a single maintainable codebase. The app will include secure phone-number authentication, a clean dashboard displaying match history, scores, and cumulative stats, and automatic recording of every played match. Data will persist securely across devices using Firebase, Supabase, or a lightweight backend. You’ll receive store-ready Android and iOS builds, full source code, and setup instructions. Best regards, Shabahat Habib
₹25.000 INR em 7 dias
4,4
4,4

As a seasoned Full-Stack Developer experienced in Flutter, GraphQL, and the MERN stack, I can guarantee you an efficient and robust solution for your cross-platform user data tracking app. Having proficiently delivered numerous cutting-edge mobile solutions, including Social Media Apps, Delivery Services, and Clones with various third-party integrations like payment gateways, push notifications, and analytics, I am perfectly attuned to the needs of your project. My expertise in Dart, Flutter SDK, and ReactJs aligns perfectly with your project's requirement for a robust cross-platform tech that provides native-feeling performance. Additionally, my familiarity with Android and iOS Development enables me to construct complete builds for both platforms that pass store validation with no critical warnings. Notably, my skills in designing clean software architectures such as MVC, BLOC, and MVVM alongside database proficiency in PostgreSQL, MySQL, Firestore, MongoDB make me uniquely qualified to create a maintainable code-base for your app while efficiently handling the secure storage of accumulated data. Finally my meticulous deployment pipeline strategies complimented by my expertise in Git and GitHub will ensure that your application is expertly tracked throughout its life cycle.
₹25.000 INR em 7 dias
4,5
4,5

With over 7 years of robust experience in Mobile App Development, I believe that my team and I are the perfect fit to handle your Cross-Platform User Data Tracker project. We have a proven track record of designing and developing high-performing mobile applications across various domains. Being thoroughly well-versed in React Native, we can deliver iOS and Android builds efficiently with a single code-base maintaining the native-feeling performance that you desire. Moreover, as a Google Partner digital agency, our primary focus is on delivering top-notch designs complimenting seamless functionality. Data security is paramount for us too, which is why we're well-adept with secure phone-number authentication flows and flexible backend stacks like Firebase and Supabase. We guarantee not only a polished UI with data models and endpoints that cover every aspect of user activity but also a smooth 30-second registration process for new users as specified in your acceptance criteria. We've created complex tracking apps in the past that sustain robust data storage, recall, export, and analysis - something we'll be able to replicate effortlessly for your application. Our end-to-end services encompass everything from design conception to development, testing, and successful store validation. We promise a tight line of communication throughout the project ensuring efficient delivery of your working beta
₹25.000 INR em 7 dias
4,6
4,6

Hey there, I'm an experienced cross-platform mobile developer (React Native / Flutter) and I can build your phone-verified tracking app with secure SMS OTP auth, instant match recording, persistent activity history (Firebase or Supabase), and native iOS/Android builds ready for store submission—delivered with clean source code, data models, and setup instructions. Best regards, Hassan S.
₹40.000 INR em 7 dias
4,3
4,3

As an experienced team at OTUSONE with a track record of delivering innovative cross-platform solutions, we're well-equipped to bring your vision for this user data tracking application to life. My experience in mobile app development, specifically with Flutter and React Native, will enable us to create a single code-base that runs natively on both Android and iOS devices. This choice will offer the performance and maintainability you seek without compromising on the robustness of the app. In terms of data management, we understand the need for secure and easily manageable systems, which informs our ability to work well with different backend stacks like Firebase, Supabase or even custom REST/GraphQL services. Furthermore, our expertise in Full Stack Development guarantees that we can provide a streamlined user experience focused on quick phone number authentication- a task that can be accomplished in under 30 seconds as per your criteria. Additionally, our dedication is not limited to merely building an application. We provide end-to-end services including strategic IT consulting to optimize business processes. Thus ensuring even post-development you receive continued value from this project. To affirm my competency, I'd be happy to share examples of similar cross-platform tracking apps we've built or even provide a quick prototype if needed. With OTUSONE, you get not just proficiency but also a commitment to your success.
₹35.000 INR em 20 dias
3,9
3,9

I’m Adityakhumar, a seasoned developer who can meet your needs for this cross-platform user data tracking app. While PHP is my core competency, I possess valuable experience in both Android and Flutter development, as well as being proficient in the use of APIs for enhanced app functionality. These skills make me an ideal candidate to build a codebase that performs optimally across multiple platforms, meets your data tracking requirements, and ensures seamless scaling as needed. To complement my coding expertise, I bring a solid understanding of full-stack development, including frontend proficiency using HTML, CSS, and React Native. This comprehensive skill set allows me to create not only high-performing backend systems but also intuitive and aesthetically pleasing UIs essential for your "clean dashboard" requirement. My responsive web design experience further guarantees an optimal user experience on all devices. My dedication to staying up-to-date with industry best practices and technologies aligns perfectly with your need for a secure backend framework like Firebase or Supabase. Regarding communication, you can count on my proactive nature to keep you updated throughout the project duration while still prioritizing timely delivery. Take a moment to review my comprehensive portfolio or request a prototype; let's collaborate to push that beta out quickly!
₹12.500 INR em 7 dias
3,9
3,9

Hi, I’m Karthik – Senior Mobile & Full-Stack Developer with 10+ years of experience delivering cross-platform apps with real-time activity tracking, phone-number login, and secure cloud backends. Your User Data Tracker requirement aligns perfectly with the apps I’ve built for gaming, fitness, and scoring platforms. What I will deliver: • Single code-base app for Android & iOS (React Native or Flutter) • Smooth phone-number OTP authentication (Firebase/Supabase/Auth APIs) • Clean dashboard showing matches, scores, stats & full activity history • Automatic record creation when a match starts and instant score updates on finish • Secure backend (Firebase/Supabase or custom FastAPI/Node API) with real-time sync • Data persistence across reinstall, cloud backups & indexed queries • Polished, mobile-first UI with quick filtering + search • Play Store / App Store-ready builds + step-by-step setup docs Why I’m a strong fit: ✓ Built multiple tracking apps—sports scoring, activity logs, habit systems ✓ Deep experience with phone auth, match/event recording, analytics & cloud data models ✓ Fast development workflow, clean architecture & maintainable components ✓ Tight, proactive communication to push a beta quickly I can share similar tracking app examples and a quick prototype upon request. Ready to start immediately and deliver a smooth, reliable cross-platform tracker.
₹55.000 INR em 7 dias
4,0
4,0

Hello, I’m a results-driven full-stack developer and digital solutions expert with over 4 years of experience delivering high-performing, user-centric web and mobile applications. I blend clean, scalable code with modern, conversion-focused UI/UX, ensuring every platform I build not only looks premium but also drives real business results. My expertise spans WordPress, PHP, Laravel, Magento, MERN Stack, Shopify, and Flutter (iOS & Android), enabling me to craft solutions ranging from lightning-fast corporate sites to scalable e-commerce systems and feature-rich mobile apps. Each project is responsive, SEO-optimized, fast-loading, and future-ready, built to scale effortlessly as your business grows. I take a strategic, end-to-end approach—from planning and development to integration, testing, and deployment—focusing on quality, efficiency, and measurable growth. Whether you’re launching a product, revamping your online presence, or building a custom platform from scratch, I ensure maximum ROI with solutions tailored to your goals. Let’s collaborate to bring your vision to life as a powerful digital experience that engages users, strengthens your brand, and performs at the highest level in today’s competitive market. Best regards, Arshi.g
₹25.000 INR em 7 dias
3,7
3,7

Dear Hiring Manager, I’m excited to apply for this project and help you build a fast, reliable, and fully cross-platform mobile application. My approach is simple: deliver a single, clean code-base with native-level performance, a seamless phone-number authentication flow, and a secure, durable activity-tracking system that records every match and score without fail. To ship quickly and maintain long-term scalability, I recommend using Flutter or React Native, paired with Firebase or Supabase for real-time data sync, authentication, and persistent secure storage. This combination allows me to implement OTP verification that completes in under 30 seconds, auto-create match records, update scores instantly, and ensure all activity history survives app reinstalls on both Android and iOS. My development approach includes: • Designing a clean dashboard showing match history, cumulative stats, and quick filtering. • Creating clear data models and API endpoints for profile, match records, scores, and logs. • Building both store-ready apps with zero critical validation issues. • Providing fully documented source code for smooth future maintenance. I’ve built similar tracking and event-logging apps, and I can share prototypes or demos upon request. I maintain tight communication and iterative updates so we can launch a stable beta quickly and refine it together. Looking forward to collaborating and bringing your concept to life. Best regards,
₹25.000 INR em 7 dias
2,3
2,3

As a seasoned engineer with over 7 years in software development, I'm well-versed in the exact tech you're considering for your project: React Native, Flutter, Kotlin Multiplatform - you name it. Whether it's iOS or Android development with native-like performance and maintainable codebase you're after, I'm fully equipped to deliver. Paired with my experience in backend solutions like Firebase or Supabase and a stack of AWS services at my disposal, your app will be secure and scalable from day one. With a track record of delivering more than 15 successful projects across various domains including e-commerce platforms and mobile apps, I not only have the technical expertise but also the adaptability to cater to your unique needs. My forte lies in not just writing code but building functional and user-friendly solutions that exceed client expectations - something I'm confident will align seamlessly with your goal of creating an intuitive and efficient user data tracker.
₹25.000 INR em 7 dias
1,0
1,0

With 13 years of professional experience, I am highly skilled in all the required technologies for this project. I have successfully delivered similar assignments with precision, speed, and clear communication. My approach focuses on understanding your goals, providing efficient solutions, and maintaining top-quality results. I am ready to begin immediately and ensure timely delivery. Looking forward to contributing my expertise to your project.
₹25.000 INR em 7 dias
0,0
0,0

Hello! Resonite Technologies can deliver your cross-platform user activity tracker for Android and iOS from a single maintainable codebase. Our approach: • Phone-number authentication with secure OTP verification and seamless sign-in • Match & score tracking: record every match, score, and activity in a secure database • Persistent data: ensures activity history survives reinstall; exportable for analysis • Clean dashboard UI: shows past matches, cumulative stats, and allows filtering/search • Tech stack: Flutter or React Native with Firebase/Supabase or custom backend, optimized for native performance • Deliverables: store-ready Android & iOS builds, source code with setup instructions, and well-documented backend endpoints We focus on fast deployment, secure data handling, and a polished user experience while keeping future scalability in mind. Best regards, Resonite Technologies
₹55.000 INR em 7 dias
0,0
0,0

Hi! I’d be glad to develop your customer-facing car-detailing app for both iOS and Android. I specialize in Flutter and have built multiple booking-driven apps with real-time scheduling, notifications, and admin dashboards. Tech Stack • Flutter for fast, smooth cross-platform apps • PHP (Laravel) / Custom REST API for secure backend • MySQL / Firebase for data • FCM for push notifications • Simple Admin Panel to manage services, bookings, and reviews App Features • Full service catalog (Arabic + English) • Real-time booking calendar with slot availability • Booking confirmations + reminder notifications • Review & rating system • Clean UI and scalable architecture (future in-app payments ready) Milestones UI/UX layout + app structure Services module + multi-language setup Booking system + real-time availability Reviews module Admin backend + API integration Testing, optimization, deployment builds Timeline: 7 days Deliverables: Source code, iOS/Android builds ready for store submission, backend/API hooks, deployment guide, and a walkthrough session. After-Launch Support: 1 month free bug fixing and assistance. I’ve previously shipped similar apps and can ensure high performance, clean code, and a strong user experience. Looking forward to working with you!
₹25.000 INR em 7 dias
0,0
0,0

I can build a Cross-Platform User Data Tracker that works smoothly across web, Android, and iOS. The system will securely capture and sync user activity, preferences, behaviors, and device data in real time using a centralized API. I’ll design clean dashboards, detailed analytics, and custom filters to help you monitor user patterns effectively. The app will include secure authentication, encrypted data storage, and background sync for accuracy. My approach ensures a scalable architecture, fast performance, and a user-friendly interface. I’ll deliver a reliable tracking solution that supports future automation, reporting, and integrations as your needs grow.
₹32.500 INR em 17 dias
0,0
0,0

Sonipat, India
Membro desde ago. 9, 2023
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