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I’m ready to release the first cut of my cross-platform fitness application and need it built in Flutter so it ships simultaneously to iOS and Android. The scope is intentionally lean: just the essentials that prove the core experience works while leaving room to layer on advanced capabilities later. Core flow • Secure email-and-password signup and login wired to Firebase Authentication. • A workout video library screen fed from a simple Firestore collection (no complex categorisation yet). • A personal profile where users can: – set fitness goals, – track workout history, – and update their basic information. • Clean, maintainable Flutter code with state handled predictably (Provider, Riverpod or Bloc – I’m open as long as it’s well structured). • Firebase functions or Cloud Firestore for data storage; everything should be ready for easy scaling when subscriptions and the AI fitness coach feature are added in a later phase. Nice-to-have (but not mandatory for this milestone) • Basic in-app purchase scaffolding so that the future subscription tier can slot in without a rewrite. • A placeholder service class for the upcoming ChatGPT-powered coach so we can swap it in when we move beyond the MVP. Acceptance criteria 1. App installs and runs on the latest public versions of iOS and Android. 2. All flows above work end-to-end against my Firebase project. 3. Codebase is pushed to GitHub with clear README instructions for build and environment setup. 4. Simple, clean UI – Material 3 components are fine; no heavy custom design required at this stage. If this foundation is solid, I’ll immediately roll into phase two (subscriptions and AI coach), so I’m aiming for clean architecture and frequent, testable commits from day one.
Project ID: 40510345
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279 freelancers are bidding on average €1,675 EUR for this job

Hello, Greetings! I have checked your project requirement for building a cross-platform fitness application in Flutter for iOS and Android. The application will allow users to securely sign up and log in using Firebase Authentication. Users can browse workout videos from a Firestore collection, manage their fitness goals, track workout history, and update their profile information. Admin will be able to manage the workout video library, add or update video content in Firestore, manage user-related data, and maintain the application content from the Firebase backend. We understand the concept of a fitness application and can surely build an app as per your required features. Kindly initiate the chat for further discussion Thanks & Best Regards Team Owebest || KD
€1,750 EUR in 20 days
10.0
10.0

Hi there, Jas this side from Logictrix and I am ready to work on your app with my team and with a promise for long term support in fairly low cost. Please just give me your few minutes for the chat so that we can discuss all the important points about project as well as we can clarify any queries from both side to go ahead further for final agreement. We are expert in AI development and we used many AI platforms like openAI, Freepik, Antigravity, Cursor etc for App development and other AI work. We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
€1,500 EUR in 25 days
9.7
9.7

Since you are ready to release the first cut of your fitness application, the priority is building a foundation that won't fall apart when we add the AI coach later. The biggest risk with a lean Flutter MVP is usually technical debt that makes future integrations like ChatGPT or subscriptions a headache. I focus on keeping state management predictable and the service layer decoupled. This means we can swap in your AI service or monetization logic as simple modules rather than rewriting the core app. I recently built a healthcare management app for doctors that required a similar balance of a clean Flutter UI and secure data handling: https://www.freelancer.com/portfolio-items/11354407-orthodontic-doctor-mobile-app I'll set up your Firebase Authentication and Firestore schema to be scale-ready from day one. I suggest using Riverpod for state because its provider overrides make testing the upcoming AI service much easier. I can put together a quick clean Flutter codebase for free so you can see the approach first. ~ Rajesh
€1,750 EUR in 30 days
9.5
9.5

With over a decade of experience in mobile development, particularly in Flutter, I understand the importance of delivering a high-quality MVP for your Flutter Fitness App project. As you aim to release the first cut of your cross-platform fitness application, my background in developing scalable systems, such as serving over 1 million users, aligns perfectly with the challenges of ensuring a smooth core experience while setting the stage for future advanced capabilities. For strategic insight, I would recommend structuring the Flutter codebase using Provider, Riverpod, or Bloc for predictable state handling, ensuring a maintainable and scalable solution. Drawing from my past success in building complex applications, I am confident in my ability to meet the requirements of the project and lay a solid foundation for future enhancements. I encourage you to reach out to discuss how we can work together to bring your vision to life seamlessly. Let's connect to define the roadmap for your Flutter Fitness App MVP and ensure its success within the specified budget and timeline.
€2,400 EUR in 30 days
9.1
9.1

Hi, I've built Flutter fitness apps before — we can get your MVP out clean and fast. Noticed you're ready to release the first cut, which means you need speed without cutting corners. We handle cross-platform development across iOS and Android regularly, and I have delivered 1500+ web and mobile projects over 14+ years — happy to share relevant examples. Send over the specs when you're ready and let's talk timeline. Thanks, Hasan
€500 EUR in 60 days
8.7
8.7

Hi — Elias here from Miami. I see you're ready to launch a cross-platform fitness app, a vital step in reaching your audience effectively. It's clear you want a solid MVP to start gathering user feedback. The real technical challenge often lies in ensuring the app can scale as user engagement grows. Managing state across platforms and ensuring smooth integrations with existing APIs can complicate development. A common issue here is maintaining performance while adding features based on user feedback. To tackle this, I would structure the app with a strong emphasis on modularity. This allows for easy updates and feature additions without compromising stability. Implementing efficient state management will be crucial, as will designing for future integrations with health tracking devices or third-party services. I’ve worked on similar fitness applications, focusing on user experience and seamless performance across devices. A few questions to better understand the scope: Q1 – What user roles do you envision, and how will they interact with the app? Q2 – Are there specific integrations you’re looking to include at launch, such as payment or health data? Q3 – What scaling expectations do you have for user growth in the first year? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
€1,500 EUR in 10 days
8.6
8.6

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.
€500 EUR in 10 days
8.5
8.5

Hi, there. I have carefully reviewed the requirements for Flutter Fitness App MVP. Based on your goals, you are looking for a mobile experience that is not just functional, but seamless and responsive for your users. My team and I specialize in mobile app engineering with a focus on high-performance architecture. We have a proven track record of helping businesses in Belgium build mobile solutions that scale effectively across both iOS and Android. Whether we are leveraging PHP, Android, App Development, Mobile App Development, GitHub for a native build or a cross-platform solution, our focus is on ensuring the interface is intuitive and the backend data handling is secure. We treat every app we build as a long-term asset. We avoid common pitfalls in mobile development such as memory leaks or poor UI responsiveness, ensuring your users have a smooth experience from their very first interaction. To help me provide a precise timeline for your development, I have one quick question: Are you aiming to launch on both platforms simultaneously, or are you prioritizing one (iOS or Android) for your initial market validation? Knowing this helps me determine the most efficient architectural path for your project. I am available for a discovery call to discuss your mobile roadmap whenever you are ready. Best regards Kausar and the Team
€1,800 EUR in 21 days
8.3
8.3

Good Day! I have carefully analyzed your project and understand you need a lean, scalable Flutter MVP for a cross-platform fitness app integrated with Firebase Authentication, Firestore, and clean architecture for future expansion. I can implement secure login, workout video streaming, user profiles with goal tracking, and maintain a well-structured state management approach using Provider, Riverpod, or Bloc as needed. The codebase will be clean, GitHub-ready, and designed to smoothly support future features like subscriptions and an AI coach. 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.
€650 EUR in 3 days
8.0
8.0

Hi, I’m a Flutter Developer with experience building Firebase-powered mobile applications using clean architecture and scalable state management patterns. Your MVP is well-defined, and I can deliver a solid foundation that supports future subscription features and AI coaching without requiring major refactoring. My approach would include: * Flutter for iOS and Android from a single codebase * Firebase Authentication (email/password) * Cloud Firestore for workout videos, user profiles, goals, and workout history * Riverpod (preferred) or Bloc for predictable state management * Clean Architecture with repository and service layers * Optional scaffolding for in-app purchases and a placeholder AI Coach service for Phase 2 Deliverables: * Fully functional iOS and Android app connected to your Firebase project * GitHub repository with clean commit history * Complete README and setup instructions * Material 3 UI with responsive, maintainable code * Testable architecture ready for subscriptions and ChatGPT integration I focus on writing production-quality code from day one, making future phases faster, safer, and more cost-effective. Looking forward to discussing the project.
€600 EUR in 10 days
8.4
8.4

Hi there, I understand you're building a foundational Flutter fitness MVP. The operational flow is clear: a user onboards via Firebase Auth, accesses a video library populated from Firestore, and logs their activity to a profile where they also manage their goals. The entire structure is designed to cleanly support a future AI coach and subscriptions. Technical approach: We'll use a single Flutter codebase for iOS/Android, with Firebase Auth for users and Firestore for workout/profile data. I'd suggest Riverpod for state management; its scalability and testability are ideal for your roadmap. The app will be built on a clean, layered architecture. Core modules: - Authentication: Secure email & password signup/login flow. - Video Library: A dynamic list of workouts pulled from Firestore. - User Profile: Goal setting and a persistent workout history log. - Service Stubs: Placeholder interfaces for future IAP and AI coach logic. Relevant systems: Movit AI (Figma): Our design for an AI-powered fitness app, showing direct domain experience. ServiceON (APK): A Flutter app we built that integrates OpenAI, directly relevant to your phase two plans. Implementation strategy: We'll begin with the Firebase backend setup and auth flow. Next, we'll build the core UI screens and connect them to Firestore via a repository layer. We'll use frequent, testable commits to your GitHub repo, ensuring a solid foundation. Regards, Rohit
€500 EUR in 20 days
8.4
8.4

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 fitness 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 EUR in 18 days
8.0
8.0

⭐⭐⭐⭐⭐ Build Your Cross-Platform Fitness App with Flutter Today! ❇️ Hi My Friend, I hope you're doing well. I’ve reviewed your project needs and see you are looking for a Flutter developer for your fitness app. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for mobile applications. I will ensure that your app has secure signup, a workout video library, and a personal profile for users. The code will be clean and well-structured to allow for future upgrades. ➡️ Why Me? I can easily build your cross-platform fitness application using Flutter, as I have 5 years of experience in mobile app development, specializing in Flutter, Firebase integration, and user authentication. My expertise also includes clean code practices, state management, and UI design. I have a strong grip on backend services and cloud storage, ensuring your app is scalable for future features. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. Looking forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ Flutter Development ✅ Firebase Authentication ✅ Firestore Database ✅ State Management (Provider, Riverpod, Bloc) ✅ User Interface Design ✅ In-App Purchases ✅ App Deployment ✅ Clean Code Practices ✅ Git Version Control ✅ Mobile App Testing ✅ API Integration ✅ Agile Methodology Waiting for your response! Best Regards, Zohaib
€1,000 EUR in 2 days
7.8
7.8

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,
€1,750 EUR in 7 days
7.8
7.8

Hi, this is a great lean MVP and exactly how I'd scope a v1 - prove the core experience, keep it clean for what comes next. What I'll deliver (Flutter, one codebase for iOS + Android): - Secure email/password signup + login via Firebase Authentication - Workout video library screen fed from Firestore - Personal profile screen - Clean, modern, responsive UI and a tidy, layered architecture - GitHub repo with clear structure so advanced features slot in later I'll ship the essentials solidly rather than over-build, so you can validate the experience fast. Portfolio: www.globalitvision.com. A few questions on the clarification board. Muhammad Idrees Global IT Vision Pvt. Ltd
€2,200 EUR in 25 days
8.1
8.1

Hi I can build your lean cross-platform fitness MVP in Flutter with Firebase Authentication, Firestore, and a clean structure ready for future subscriptions and AI coach features. My skills cover Flutter, Dart, Firebase Auth, Cloud Firestore, Firebase Functions, Provider/Riverpod/Bloc, Material 3 UI, GitHub workflows, and iOS/Android build setup. The main technical problem is building the MVP quickly without creating a messy codebase that becomes hard to extend when subscriptions and AI features are added later. I would solve this by using a modular Flutter architecture with clear service layers for auth, profile data, workout videos, history tracking, and future paid/AI features. For the first release, I will implement secure email/password login, a Firestore-driven video library, user profile editing, fitness goals, and workout history tracking. I can also add lightweight in-app purchase scaffolding and a placeholder AI coach service class so phase two can be integrated without rewriting the foundation. The final codebase will be pushed to GitHub with a clear README for Firebase setup, build steps, environment configuration, and testing on iOS and Android. Thanks, Hercules
€2,000 EUR in 7 days
7.4
7.4

Hi there, We’ve built several MVPs with a focus on core features, including a fitness app that integrated with Google Fit and Apple Health to track user activity and workouts. We also developed a web admin panel for trainers to manage users and create custom workouts, which were then delivered to users via push notifications. For your project, we can use the latest version of Flutter and Firebase to deliver a fully optimized app. We’ll also ensure that the code is clean and well-structured, so you can easily add new features later. Let’s schedule a quick 10-minute 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
€1,910.63 EUR in 21 days
7.6
7.6

Hi, This is exactly the kind of lean, well-scoped MVP I enjoy building — a clean Flutter foundation with Firebase wired up properly from day one, designed to grow rather than be rewritten. I'd implement this using Riverpod for state management alongside a layered architecture (feature → data → domain), so the subscription tier and AI coach slot in cleanly in phase two without touching your core flow. Firebase Auth, Firestore, and Cloud Functions will be set up with environment configs from the start, keeping staging and production fully separated. I'll include both the in-app purchase scaffolding and the placeholder ChatGPT coach service class as part of this milestone — not as extras but as part of doing the architecture right. Stub interfaces cost almost nothing upfront and save a full refactor later. Every screen will use Material 3 components with a consistent design token layer so the UI feels polished while remaining easy to retheme.
€1,400 EUR in 7 days
7.2
7.2

Hi there, I understand you need a lean Flutter fitness MVP for iOS and Android with Firebase email/password authentication, Firestore-powered workout video library, user profile, fitness goals, workout history, clean Material 3 UI, and scalable architecture for future subscriptions and coach features. I have strong experience building Flutter apps with Firebase Auth, Cloud Firestore, Riverpod/Provider/Bloc state management, structured services, profile workflows, media library screens, GitHub delivery, README setup guides, and production-ready Android/iOS builds. I would build the app with predictable state management, Firebase integration, testable commits, clean folder structure, optional in-app purchase scaffolding, a placeholder coach service class, and end-to-end setup against your Firebase project. Q1: Do you prefer Riverpod, Provider, or Bloc for state management? Q2: Will workout videos be stored as URLs in Firestore or uploaded to Firebase Storage? Q3: Should the MVP include App Store/TestFlight and Google Play internal testing builds? Best regards, Stratos
€1,750 EUR in 7 days
7.4
7.4

Hi, I have 10+ years of experience in mobile application development and can build your Flutter MVP with a strong focus on clean architecture, maintainability, and future scalability. The proposed solution will use Flutter for both iOS and Android, Firebase Authentication for secure user management, Cloud Firestore for workout content and user data, and Riverpod for predictable and scalable state management. The app will include user registration/login, workout video library, fitness goal management, workout history tracking, and profile management, all connected to your Firebase project. To support future phases, I can also include a basic subscription-ready structure and a placeholder AI coach service layer, making it easier to integrate ChatGPT-powered features later without major refactoring. My goal is to deliver a solid MVP foundation that can smoothly evolve into your full fitness platform. Best regards
€500 EUR in 7 days
7.1
7.1

Belgium
Member since Jun 12, 2026
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$250-750 USD
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₹12500-37500 INR
₹12500-37500 INR
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₹37500-75000 INR
$1500-3000 USD
₹750-1250 INR / hour
₹750-1250 INR / hour
₹150000-250000 INR
₹750-1250 INR / hour