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I’m building a mobile app in FlutterFlow and I’m ready to wire up the authentication layer with Firebase. The screens are already laid out inside my FlutterFlow project, so your focus is purely on functionality and clean integration. What I need you to do • Connect the existing sign-up and login screens to Firebase Authentication for three methods: Email & Password, Google Sign-In, and Phone Number (OTP) verification. • Handle account creation, secure login, error messaging, and session persistence for each method. • Make sure the flows work seamlessly on both iOS and Android once published from FlutterFlow. • Walk me through any minor Firebase console settings or OAuth credentials I must add so everything stays maintainable after hand-off. Acceptance criteria 1. A new user can register and log in with any of the three methods and is returned to the main app screen. 2. Returning users are kept signed in until they choose to log out. 3. All authentication errors surface in the UI with friendly messages. 4. The FlutterFlow project exports and builds without additional tweaks. The project is small and focused, perfect for someone who already lives in FlutterFlow and knows Firebase Auth inside out. If that’s you, let’s get started—please share a brief note on similar work you’ve completed and an estimate of how soon you can plug this in.
Project ID: 40534738
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Active 6 days ago
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Budget: ₹4,500. no strings attached. Hello, I can integrate Firebase Authentication into your existing FlutterFlow project and connect all authentication flows without requiring any UI redesign. Scope: • Email & Password Authentication • Google Sign-In • Phone Number OTP Verification • User Registration & Login • Session Persistence • Logout Functionality • Friendly Error Handling • FlutterFlow Action Configuration I will ensure: • New users can register and access the main app • Existing users remain logged in until logout • Authentication errors display clearly in the UI • Android and iOS compatibility • Clean FlutterFlow implementation • Exportable and build-ready project I will also guide you through: • Firebase Console configuration • Google OAuth setup • SHA-1/SHA-256 configuration • iOS authentication settings • Required FlutterFlow settings Portfolio: [login to view URL] Mobile App Portfolio: [login to view URL] I have experience with FlutterFlow, Firebase Authentication, OTP systems, Google Sign-In integrations, mobile app development, and production deployments. Timeline: 1 day Deliverables: • Fully working authentication system • Firebase configuration support • Testing on all login methods • Documentation and handover assistance Ready to connect the authentication layer and get your app production-ready. Thank you.
₹3,000 INR in 2 days
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25 freelancers are bidding on average ₹6,507 INR for this job

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
₹12,000 INR in 3 days
7.1
7.1

Hi, 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, Software Development, OAuth, iOS Development, Flutter Lets connect in chat so that We discuss further. Thank You
₹3,500 INR in 3 days
6.3
6.3

As an experienced and passionate full-stack developer, I am the ideal fit for your FlutterFlow Firebase Auth Setup project. My expertise includes OAuth and software development, which makes me well-versed with Firebase's comprehensive Authentication service. I am confident that I can successfully connect the existing sign-up and login screens to Firebase, efficiently handling account creation, secure login, error messaging, and session persistence for each authentication method. This will ensure that new users can register and log in seamlessly, returning users are kept signed in until they choose to log out. Moreover, my competence with Flutter will guarantee a smooth deployment of the app on both iOS and Android platforms after publishing from FlutterFlow. I understand how crucial it is for all authentication errors to be surfaced in the UI with friendly messages, and I will pay diligent attention to this aspect too. Rest assured, I believe in not just completing projects but exceeding expectations - your FlutterFlow project will export and build without any additional tweaks.
₹1,500 INR in 7 days
5.2
5.2

Hi, I can help integrate Firebase Authentication into your existing FlutterFlow project and ensure all login methods work smoothly across Android and iOS. ✔ Email & Password Authentication ✔ Google Sign-In Integration ✔ Phone Number OTP Verification ✔ Session Persistence & Auto Login ✔ Friendly Error Handling & Validation Messages ✔ Firebase Console & OAuth Configuration Guidance ✔ Testing and Verification Before Delivery My focus will be on clean integration, reliable authentication flows, and a hassle-free handover so you can continue managing the project confidently within FlutterFlow. A few questions: 1. Is Firebase already connected to your FlutterFlow project? 2. Do you already have Google Sign-In and Phone Authentication enabled? 3. What is your expected timeline for completion? Let's discuss more in private chat. Thanks, Cheers, DJ
₹9,999 INR in 10 days
5.2
5.2

I understand your FlutterFlow screens are already designed, so you need the authentication layer connected cleanly with Firebase. I can integrate Email/Password, Google Sign-In, and Phone OTP authentication, including session persistence, error handling, and logout flows. I’ll also guide you through the required Firebase and OAuth configurations to ensure smooth Android and iOS deployment.
₹15,000 INR in 15 days
4.8
4.8

Hi, I hope you're doing well. Is your Firebase project already connected to FlutterFlow, or should I set up Firebase console and OAuth from scratch? I have implemented Firebase Authentication in FlutterFlow apps with Email/Password, Google Sign-In, and Phone OTP, including production-ready builds. I can complete this integration in around 1–2 days depending on access to your Firebase console and existing configuration. You need full Firebase Auth integration for three login methods, proper session handling, error messages, and seamless iOS/Android compatibility with FlutterFlow export. As a full-stack mobile developer experienced in FlutterFlow and Firebase, I’ve built similar authentication systems with secure login flows and persistent sessions across multiple platforms. I will connect all auth methods, configure Firebase settings, set up OAuth credentials, handle OTP verification and error UI, and ensure clean app state persistence so everything works after export without extra fixes. Let’s discuss the details in chat so I can align everything quickly with your current setup. Looking forward to working with you.
₹10,000 INR in 15 days
4.5
4.5

Hello, I can help you wire up Firebase Authentication into your existing FlutterFlow project with clean, stable integration across Email & Password, Google Sign-In, and Phone OTP. I have strong experience working with FlutterFlow and Firebase setups, including handling auth flows, session persistence, and cross platform behavior for both iOS and Android builds. I will connect your existing screens to Firebase Auth, configure proper sign-up and login flows, ensure secure session handling so users stay signed in until logout, and implement clear UI friendly error handling for all authentication states. I will also guide you through the required Firebase console setup such as OAuth configuration for Google Sign-In, SHA certificates for Android, and proper phone authentication settings so everything works smoothly after deployment. Once completed, your FlutterFlow project will export cleanly and run without extra fixes, with all three login methods fully functional and returning users directed properly into the main app. I can usually complete this kind of integration quickly within 1 to 2 days depending on current project access and Firebase readiness. Let’s get started and I’ll make sure your auth system is production ready and easy to maintain going forward. Best Regards, Solves Inn
₹1,500 INR in 1 day
4.4
4.4

As a passionate developer with a strong focus on mobile app development using Flutter and iOS, I’m confident I am the best candidate for this project. Having completed numerous projects involving setting up Firebase authentication, I have an in-depth understanding of how it integrates within a FlutterFlow environment and can guarantee a clean and functional system that would work seamlessly across both iOS and Android platforms. My resourcefulness in handling account creation, secure login, error messaging, and session persistence for different authentication methods such as Email & Password, Google Sign-In, and Phone Number (OTP) verification will ensure each method is fully optimized for performance. What sets me apart is not just my technical skills; it's my ability to walk clients through the complex world of programming languages━educating them on the intricacies they need to know to maintain the system even after handoff. This translates into ensuring minimal room for errors or redundancies that can disrupt proper functioning. The integrated approach I take towards problem-solving combined with my extensive experience of 5 years in mobile app development means that you can get your authentication system built quickly without sacrificing quality & reliability. Moreover, my background in digital marketing and automation has equipped me well to cater to the needs of businesses seekin
₹7,000 INR in 7 days
2.1
2.1

As a full-stack development expert, my expertise extends well beyond the PHP skills that I have perfected over the years. My team and I possess deep knowledge of your preferred technologies FlutterFlow and Firebase, ensuring a seamless integration of the authentication layer as you've requested. We are adept at maintaining clean codes that function effectively and prevent compatibility issues when exporting and building projects, because we understand how tedious additional tweaks can be. What sets me apart from other candidates is not just my experience with one platform or language, but my deep familiarity with the full-stack ecosystem. This end-to-end coverage enables me to build from the bottom up while handling any unexpected issues. In addition to thorough authentication set-up, my knowledge of REST API and backend roles will enable me to handle account creation, secure login, error messaging, and session persistence for each authentication method fluently.
₹7,000 INR in 7 days
1.2
1.2

Hello, I can connect your FlutterFlow app to Firebase Authentication and ensure all three login methods work smoothly with clean, production-ready integration. I have experience working with Flutter + Firebase projects, including OAuth flows and authentication setups in FlutterFlow environments. What I will deliver: • Firebase Auth integration for Email/Password, Google Sign-In, and Phone OTP • Proper user registration and login flow handling • Session persistence (auto-login for returning users) • Clean error handling with user-friendly messages in UI • Smooth redirect to main app screen after login • Fully working iOS + Android compatibility from FlutterFlow export • Guidance on Firebase console setup (OAuth, SHA keys, configs) • Testing to ensure no login loops or edge-case failures Approach: I will directly connect your existing FlutterFlow screens to Firebase Auth and configure everything in a way that stays stable after export, so you don’t need to modify code later. I will also make sure authentication flows are clean, secure, and consistent across all three methods. I can start immediately. Best regards, Dipak
₹5,000 INR in 2 days
1.4
1.4

Hi, With over 15 years of experience, I have gained extensive expertise in Mobile App Development and PHP. My proficiency with Flutter, Firebase and my AI-driven approach makes me the perfect fit for your project. As I'm well-versed in FlutterFlow and Firebase from creating numerous similar mobile applications, I can ensure a clean integration of the authentication layer with Firebase for all three methods and make your Flows work seamlessly on iOS as well as Android. One of my primary focuses is on delivering an intuitive user experience. As such, handling account creation, secure login, error messaging, session persistence and surfacing friendly authentication errors are second nature to me. My thoroughness has also helped me streamline projects efficiently. This means reducing the need for any additional tweaks in your exported FlutterFlow project during post-delivery stages, allowing you to start off with a robust foundation. Lets have a chat warm regards Usama Ansari
₹7,000 INR in 7 days
0.0
0.0

Hi , Good morning! I am professional mobile coder with skills including OAuth, PHP, Android, iOS Development, Mobile App Development, iPhone, Software Development and Flutter. Please send a message to discuss more regarding this project. Thanks
₹7,770 INR in 4 days
0.0
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I'm not going to tell you I am the best person for the job, I'll show you why. I understand the need for clean, professional, and seamless integration of Firebase Authentication into your FlutterFlow mobile app. Our expertise lies in connecting sign-up and login screens for Email & Password, Google Sign-In, and Phone Number verification, ensuring error-free functionality across iOS and Android platforms. While I am new to Freelancer, I have tons of experience and have successfully completed similar projects off-site. Let's discuss your project and uncover the opportunities that others may overlook. Regards, Warrick Van Eeden
₹5,650 INR in 7 days
0.0
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Hi, I can integrate Firebase Authentication into your existing FlutterFlow project and connect the already-designed screens with all three required sign-in methods: • Email & Password Authentication • Google Sign-In • Phone Number Authentication (OTP Verification) What I'll deliver: * Complete Firebase Auth setup and FlutterFlow integration * User registration and login flows for all three methods * Friendly error handling and validation messages * Persistent login sessions (users stay signed in until logout) * Secure logout functionality * Android and iOS configuration for Firebase Auth * Guidance for Firebase Console settings, SHA keys, Google OAuth setup, and any required platform credentials * Testing to ensure the project exports and builds correctly from FlutterFlow Relevant experience: I have worked on Flutter and FlutterFlow applications using Firebase Authentication, Firestore, Cloud Functions, push notifications, and production deployments on both Android and iOS. I am familiar with FlutterFlow's authentication actions, custom actions, and Firebase configuration requirements. Estimated timeline: * Firebase setup and Email/Password Auth: 1–2 hours * Google Sign-In configuration: 1 hour * Phone OTP verification setup and testing: 1–2 hours * Final testing and hand-off: 1 hour I can start immediately and provide a clean, maintainable setup with clear hand-off documentation. Looking forward to working with you. Best regards, vikas
₹7,000 INR in 1 day
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As a Freelance Software Developer & AI Systems Specialist, I have been helping businesses like yours take full advantage of cutting-edge technologies to speed up workflows, enhance productivity, and scale without constraints. The skills and proficiency I bring extend far beyond simple code writing, empowering me in designing intelligent systems and products that work for your unique business needs. Combining my expertise in full-stack development with AI and automation, I’m well-positioned to navigate the intricacies of this project. My experience also includes extensive work with Firebase Authentication. During my various assignments, I've successfully executed projects closely resembling yours - setting up seamless authentication on FlutterFlow projects with Firebase. Furthermore, my CRMs and CMSs skills have acquainted me with different user verification options. Beyond delivering the outlined acceptance criteria efficiently, I pride myself on maintaining end-to-end ownership over my projects. This means that not only would the project be imparted sans any issues or need for revision, but also your after-contract journey should proceed smoothly.
₹10,000 INR in 5 days
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Hi, there. I will integrate Firebase Authentication into your existing FlutterFlow project, enabling Email & Password, Google Sign-In, and Phone OTP login with secure session persistence, friendly error handling, and seamless navigation on both iOS and Android. A properly configured authentication flow improves user onboarding and reduces drop-offs from the first interaction. I have experience implementing Firebase Auth in FlutterFlow applications similar to your requirements, helping launch apps with over 10,000 registered users while maintaining reliable sign-in experiences across platforms. I will connect your existing screens, configure authentication actions, verify export compatibility, and guide you through any required Firebase console, OAuth, and phone verification settings. The integration will be clean, maintainable, and ready for future enhancements such as user roles or profile management without requiring major changes. I communicate clearly, provide concise handoff instructions, and can complete focused authentication tasks quickly, and I am confident I can deliver a smooth setup while already anticipating any platform-specific adjustments. Thanks.
₹5,000 INR in 2 days
0.0
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Hi, I can help you set up your FlutterFlow project with Firebase and ensure everything is configured correctly. I have experience working with Flutter and Firebase, including Authentication, Firestore, Cloud Messaging, and project configuration. I can assist with: - Firebase Authentication setup (Email, Google, or other providers as required) - Firestore/Realtime Database integration - Firebase configuration for Android and iOS - Fixing authentication or Firebase-related issues - UI updates such as text and color changes - Testing to ensure everything works smoothly - Providing a brief handover or documentation if needed I focus on clean implementation, clear communication, and timely delivery. I'll keep you updated throughout the project and make sure the app is fully functional before completion. I'm ready to start immediately and would be happy to discuss your exact requirements. Looking forward to working with you. Best regards, Kiran
₹3,000 INR in 2 days
0.0
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Hi, I reviewed your requirements and understand that your FlutterFlow screens are already designed, and you need Firebase Authentication integrated cleanly and reliably. I can connect: • Email & Password Authentication • Google Sign-In • Phone Number (OTP) Authentication I will ensure: • Secure account creation and login • Session persistence for returning users • User-friendly error messages • Smooth navigation to the main app screen after authentication • Proper Firebase and OAuth configuration for Android and iOS • Clean FlutterFlow implementation that exports and builds successfully I will also guide you through any Firebase Console settings required so you can maintain the project independently after hand-off. A few questions: 1. Have you already created the Firebase project? 2. Is Google Sign-In configured for both Android and iOS? 3. Do you already have the Firebase configuration files added to FlutterFlow? I can start immediately and expect to complete the integration within 1–2 days. Regards, Mehakmeet Kaur
₹5,500 INR in 4 days
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