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I am starting a multi-phase project to build a scalable voice-chat room application for Android, and I want Phase 1 completed first. The core stack is Flutter for the client, Firebase for auth, real-time audio and data, and a clean, modular architecture that can grow into later features such as Coins, VIP, Gifts, Agency, Family and Rankings. Mobile OTP login is my top-priority authentication method, though Google sign-in must also work smoothly. Every build needs to be pushed to a private GitHub repository that sits under my own account; I retain full ownership of all source code, server instances and databases. Phase 1 scope and deliverables • OTP and Google authentication • User profile creation & editing • Create / join voice rooms with room-wide audio • In-room admin controls: mute / unmute, kick, block, assign admins • Basic web admin panel for user & room management • Clear, well-documented Flutter + Firebase code that follows scalable, layered architecture When you reply, include: • Relevant voice or real-time audio apps you have shipped in Flutter • A high-level timeline broken into logical milestones • A cost breakdown per milestone that fits the current phase budget • Any questions you need answered before starting I plan to move straight on to Phase 2 once this milestone is accepted, so clean code, Git hygiene and future-proof structure are critical.
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I've worked on community-style mobile platforms before, and the biggest win is getting the room architecture right in Phase 1 so Coins, Gifts, VIP tiers, and rankings don't require a rebuild later. One similar project involved a high-concurrency mobile platform with real-time user synchronization and scalable backend architecture, while another mobile app handled live activity tracking and social interactions at scale. Both required clean ownership boundaries, modular code, and future feature expansion. Proposed milestones: • M1: Auth (OTP + Google), profiles, Git setup - 1 week • M2: Voice rooms, join/create flow, room audio - 2 weeks • M3: Admin controls (mute, kick, block, admins) - 1 week • M4: Web admin panel, testing, documentation, handoff - 1 week A few questions: 1. Do you already have a preferred audio provider, or should I recommend one? 2. Will room sizes be capped initially? 3. Should blocked users be room-specific or platform-wide? Happy to walk through how I'd structure the Firebase and room architecture for Phase 2 readiness.
₹18,000 INR in 35 days
2.0
2.0
50 freelancers are bidding on average ₹10,480 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
₹7,000 INR in 7 days
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 & React- Native and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)
₹30,000 INR in 14 days
6.6
6.6

I have similar project, message me once i will show you I have 10 year experience in coding and development,
₹7,000 INR in 7 days
6.2
6.2

Hello, Your vision for a multi-phase voice-chat platform aligns perfectly with how scalable applications should be built. Rather than focusing only on Phase 1, I would develop the foundation with future features like Coins, VIP, Gifts, Agencies, Families, and Rankings in mind, minimizing costly refactoring later. For Phase 1, I will deliver: ✔ OTP Authentication (Primary Login) ✔ Google Sign-In ✔ User Profile Creation & Editing ✔ Voice Room Creation & Joining ✔ Real-Time Room Audio ✔ Admin Controls (Mute, Kick, Block, Assign Admins) ✔ Web Admin Panel for User & Room Management ✔ Clean, Modular Flutter + Firebase Architecture ✔ Private GitHub Repository Under Your Account with Full Ownership I have experience building Flutter applications with Firebase, real-time communication, role-based permissions, live user management, and scalable architecture designed for future feature expansion. Timeline: Depends on work scope A Few Questions 1. Do you have a preferred audio provider (Agora, Zego, LiveKit), or should I recommend one? 2. Will rooms be public, private, or both? 3. What is your target user scale for launch? I am confident I can deliver a clean, well-documented Phase 1 that is ready for immediate Phase 2 expansion. Let's discuss the details and get started. Regards Abhishek
₹7,000 INR in 7 days
5.5
5.5

Hi! Your focus on OTP login and clean modular code for future growth (coins, VIP, etc.) is smart. Many voice chat apps get messy with quick patches, so planning for layered architecture and regular GitHub pushes from day one is the right move. Building the basic room controls and admin tools in Phase 1 means you can scale later without rework. I shipped a group-call app for a social platform last year using Flutter with Firebase auth and Firestore for real-time data. The project included OTP login, Google sign-in, audio rooms, and a web admin panel. One question—do you want voice rooms to work if the host disconnects (like Clubhouse), or should the room close when the creator leaves? Happy to share a free structure diagram of how I'd set up the layered Flutter and Firebase code. You can see more examples of my real-time apps at work.techindika.com. — Pradeep
₹7,000 INR in 7 days
4.5
4.5

I have read your Phase 1 requirements and would love to help build the foundation of your voice-chat room platform. I have experience developing Flutter applications with Firebase authentication, real-time communication systems, role-based permissions, admin dashboards, and scalable architectures designed for future feature expansion. For this project, I would recommend Flutter with a layered clean architecture, Firebase Authentication (OTP and Google Sign-In), Firestore, Cloud Functions, and a dedicated real-time audio solution such as Agora or LiveKit for reliable room-wide voice communication. The architecture will be structured specifically to support your future roadmap, including Coins, VIP memberships, Gifts, Agencies, Families, Rankings, and monetization modules without requiring major refactoring. Phase 1 will include authentication, profile management, room creation and participation, moderator controls, user blocking, admin assignment, and a web-based administration panel for managing users and rooms. All development will be committed to your private GitHub repository with regular updates, clean documentation, and clear code ownership under your account. My focus is delivering a stable, scalable, and production-ready foundation that enables rapid progression into future phases.
₹7,000 INR in 7 days
4.1
4.1

Hi there! As both an experienced mobile app developer and a strategic thinker, I believe I would be the perfect fit for your voice-chat room application project. Throughout my two decades in the tech industry, I've had the privilege of developing various real-time audio apps in Flutter that have scaled and successfully resolved complex problems similar to yours. From AI chatbots to voice agents, my work has involved optimizing code and designing efficient backend systems – a skillset that complements your project needs. Regarding the timeline, as someone who values clear communication and well-managed expectations, I'd break down the development into logical milestones that align with your projected budget. Having led multidisciplinary teams as CTO at an AI startup, I understand the importance of not just writing code, but also maintaining Git hygiene and creating a future-proof structure to ensure smooth continuation. My work is about not just delivering an application but also delivering a sustainable solution. In conclusion, I bring a comprehensive skill set ranging from frontend development to cloud deployment which aligns perfectly with your project's requirements. Together, let's build a secure and scalable voice-chat app that takes over the world! I look forward to your feedback as well as any questions you might have before we commence this exciting journey.
₹1,500 INR in 7 days
3.9
3.9

Building a scalable voice-chat room application presents unique challenges, particularly in implementing real-time audio and ensuring seamless authentication. With my 12+ years of experience in developing applications using Flutter and Firebase, I am well-equipped to tackle these complexities. I have successfully shipped several projects involving real-time audio features, one notable example being a social networking app that facilitated live audio interactions among users. For your project, I propose the following high-level timeline: - **Milestone 1 (2 weeks)**: Implement OTP and Google authentication. - **Milestone 2 (3 weeks)**: Develop user profile creation & editing features. - **Milestone 3 (4 weeks)**: Create voice rooms with admin controls. - **Milestone 4 (2 weeks)**: Build a basic web admin panel. **Cost Breakdown**: - Milestone 1: $X - Milestone 2: $Y - Milestone 3: $Z - Milestone 4: $A To ensure we are aligned on expectations, could you clarify if there are any specific design guidelines or branding elements you'd like incorporated into the app?
₹12,500 INR in 7 days
3.4
3.4

As someone with a strong background in Full Stack Development and 5+ years of experience, I believe I am the ideal candidate for your project. Specifically, my proficiency in Flutter and Mobile App Development has equipped me with the skills needed to create excellent voice or real-time audio apps like Spotify Clone and Group Voice Chat Apps, both built using Flutter. A full break-down of my high-level timeline and pricing structure will be provided upon a more comprehensive understanding of your project details and requirement. However, what's important is for you to know that your project is my priority. Your use of OTP and Google authentication are not only understood but methods I've fluently integrated into past applications. Maintaining a clean codebase on git with future-proof structure is paramount too; it ensures easier team collaboration, effortless debugging, and supports scalability. And if warrantied by the completion of Phase 1, I'm eager to join you on the subsequent journeys through phases 2+.
₹7,000 INR in 7 days
3.5
3.5

As someone who specializes in mobile app development, particularly in the Flutter framework, I'm highly equipped to bring your phase one project to life. My name's Mohammed Ibrar and I've spent over 5 years crafting scalable digital solutions. Notably, I've successfully completed a plethora of projects that can directly benefit your voice chat room app. Considering the significance of timely milestones completion and cost-effectiveness without compromising quality, here's a possible breakdown: 1. OTP and Google authentication - $X 2. User profile creation & editing - $X 3. Create / join voice rooms with room-wide audio - $X 4. In-room admin controls: mute / unmute, kick, block, assign admins - $X 5. Basic web admin panel for user & room management - $X The clean code is a core priority for me too since it ensures long-term maintenance and smooth future development such as Phase 2 enhancements like Coins, VIP, Gifts etc which we can discuss after a successful execution of Phase 1. Respecting your intent to move straight onto phase two post-Phase 1 completion is also an approach I appreciate as it aligns with my commitment to efficient project delivery while maintaining high quality standards. With my thorough understanding of Flutter and Firebase-based solutions informed by our previous successful engagements with startups across industries similar to yours important among others-Pitch end
₹4,000 INR in 7 days
3.6
3.6

With extensive experience in developing mobile applications, particularly those requiring real-time audio and data management, I believe I am an ideal fit for this Flutter Voice Chat Room App project. Having successfully delivered over 200 projects, I understand the importance of building clean, scalable and layered codes while following best architectural practices. This allows the software to grow without compromising on its performance and user experience. In terms of Flutter app development, I’ve built products that managed real-time audio quite similar to what you’re seeking for- ensuring seamless user experience when joining or creating voice rooms. User management is also one of my specialties through the web admin panel I'll build for you where you can easily manage user and chat rooms with high administrative power. Critically, I highly value Git hygiene and clean code practices as they greatly influence future development phases for a project. My work ethic is centered around speed, quality, and constant communication with clients like yourself - which has been a key reason why many of my clients go on to build a long term professional rapport with me. You’ve come to the right person to turn your idea into reality & life!
₹7,000 INR in 7 days
3.5
3.5

As a highly experienced and results-oriented digital marketer, my extensive background in the Flutter and mobile app development align perfectly with your project requirements. Having generated and managed over $2M in ad spend while delivering consistent profitability, I understand the value of clean code, Git hygiene, and future-proof structures that drive impactful results. Communication is key for me; therefore, I commit to open dialogues throughout the project to fully understand your specifications and vision. This ensures timely delivery of quality work that meets your unique expectations. Moreover, creativity is a core strength I bring to any project. It's not just about crafting an app that works effectively; it’s also about creating an enjoyable user experience that translates into a loyal and growing customer base. From phase one with OTP and Google authentication to accommodating future features such as VIP, Coins or Gifts, I guarantee high-level performance at every milestone along with a detailed cost breakdown that suits your budget. Above all, I assure you full ownership of every aspect of your app - source code, server instances and databases.
₹7,000 INR in 2 days
2.1
2.1

Building voice rooms with OTP login in Flutter + Firebase is core to our stack — we've shipped real-time audio features using Agora SDK for social and community apps. Phase 1 milestones: 1. OTP + Google Auth + profile CRUD — Rs.3,000 2. Voice room create/join + room-wide audio — Rs.5,000 3. In-room admin controls (mute/kick/block) — Rs.2,500 4. Web admin panel + GitHub handoff — Rs.2,000 Modular architecture from day one so Phase 2 (Coins, Gifts, VIP) slots in without refactors. Code stays on your GitHub. Ping me and we'll confirm the audio SDK choice before we start.
₹12,500 INR in 25 days
1.6
1.6

I am grateful for the opportunity to be considered for your voice chat room app project, as my extensive skills and experience in Android app development, specifically in Flutter, match your requirements precisely. Having successfully completed numerous real-time audio projects using voice chat applications in Flutter, I am well-versed in the core stack you're seeking - Flutter, Firebase, and clean modular architecture for scalability. To provide the transparency and clarity you desire, I can break down Project Phase 1 into realistic milestones with respective cost breakdowns that comply with your current budget. My proposed timeline will ensure efficient completion of OTP and Google authentication, user profile creation & editing, creating/joining voice rooms with room-wide audio, in-room admin controls such as mute/unmute and kick/block functions alongside a basic web admin panel to manage users and rooms efficiently. As a freelancer who puts a strong emphasis on clean code, git hygiene, and future-proof architecture, I am familiar with the crucial role they play in scaling up an application for future phases. Rest assured that your ownership of all the source codes will always be retained by you while I pride myself upon 100% client satisfaction rate as testified by 42+ different countries across 1000+ completed projects. My colleagues and I look forward to commencing this exciting project with you alongside our dedicated time zone lapses to meet your requirements!
₹7,000 INR in 7 days
0.0
0.0

I will build a highly scalable, production-ready foundation for your voice-chat application. Phase 1 will deliver smooth Mobile OTP/Google authentication, real-time voice rooms, full in-room admin controls, and a core web admin panel. The architecture will be strictly modular (using clean BLoC/Cubit state management), meaning Phase 2 features like Coins, Gifts, and VIP can be plugged in later without rewriting a single line of core code. You retain 100% ownership of the private GitHub repository and all Firebase instances from day one.
₹6,000 INR in 10 days
0.0
0.0

Hi, I am a Flutter Developer experienced in Flutter, Firebase, GetX, REST APIs, and Clean Architecture. I can build your Phase 1 voice chat application with scalable architecture, OTP and Google authentication, user profiles, voice rooms, admin controls, and Firebase integration. I will maintain clean code, proper GitHub workflow, documentation, and future-ready structure for upcoming features such as Coins, VIP, Gifts, Agency, and Rankings. Before starting, I would like to confirm: 1. Preferred RTC provider (Agora, ZegoCloud, etc.) 2. UI designs availability 3. Admin panel requirements I look forward to discussing the project further. Best Regards, Hammad Ahmad
₹7,000 INR in 7 days
0.0
0.0

Hi, building a scalable voice-chat room app requires decoupling the data layer from the audio stream so future features like Coins and VIP don't bottleneck performance. I've built modular Flutter architectures handling real-time states with Firebase and integrating Agora/LiveKit for seamless room-wide audio, ensuring the codebase is clean, Git-managed, and Phase 2-ready. Phase 1 Breakdown & Milestones: M1: Auth (OTP & Google), Git repo setup, and Clean Architecture base (₹2,500 | 2 days). M2: User Profiles, Core Room UI, and Basic Web Admin Panel (₹3,500 | 3 days). M3: Audio Stream Integration (Agora/Zego) & In-room Admin Controls (₹4,000 | 3 days). Were you planning to use a specific RTC engine for the audio (like Agora), or should I configure the most robust and cost-effective option alongside Firebase? My portfolio: https://www.freelancer.com/u/JuanGarcia12001
₹7,000 INR in 7 days
0.0
0.0

Dear georgevdw, I am well-equipped to undertake your project for the Flutter Voice Chat Room App. With a proven track record in delivering high-quality voice and real-time audio apps in Flutter, I assure you of a seamless implementation. The proposed project timeline will be structured into logical milestones to ensure efficient progress. Each milestone will be accompanied by a detailed cost breakdown that aligns with your current budget for Phase 1. Before commencing, I may require further details to tailor the solution to your specific needs. Your satisfaction is paramount, and I am committed to delivering clean code, maintaining Git hygiene, and establishing a future-proof architecture. I look forward to the opportunity to work on Phase 1 and pave the way for a successful transition to Phase 2. Best regards, [Your Name]
₹6,250 INR in 7 days
0.0
0.0

Hello I hope you are doing well I have read your Complete proposal You need a Experienced Flutter developer for Cross-Platform Voice Chat Room Application I have more than 5 years of work experience in Mobile application developement have a hand-on experience in amny terms like Figma to Flutter, Firebase, Google maps and Rest APIs integrations I am confident that will handle your task in a reasonable price and time and I am available to start working on it Let's chat to Proceed
₹7,000 INR in 7 days
0.0
0.0

Hey! As an experienced full-stack developer with a specific proficiency in Flutter and Mobile Development, I am well-equipped to deliver on your Phase-1 requirements for the Voice Chat Room App and more. I have successfully shipped numerous sophisticated voice and real-time audio apps in Flutter, establishing my expertise in this domain. With 5+ years of experience under my belt, I've worked extensively with web and mobile app development, API integrations, and authentication systems including OTP. Time-management is core to my work ethos, which means I can break down your project into logical milestones ensuring that we meet deadlines while maintaining a robust codebase. Additionally, my cost breakdown for each milestone will be tailored to suit your current phase budget. This is definitely not a learning opportunity for me; instead, I bring valuable skills and industry informed insights to the table. Your project's emphasis on secure code repositories and full client ownership aligns perfectly with my professional approach. Hygienic Git usage coupled with clean architecture is something I religiously follow to allow for better collaboration, scalability, and future-proofing. So let's get started; ensure high-quality code with timely delivery by choosing me!
₹7,000 INR in 10 days
0.0
0.0

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