Android App Development (Kotlin/Flutter) for WebRTC 1-to-1 Calling & MediaSoup Group Calling (Backend Provided)

@infowider11

*****: Flutter/Kotlin Frontend Implementation for WebRTC & MediaSoup Calling **** Hello, I can develop the frontend calling module using Flutter or Kotlin that integrates with your existing backend APIs to support one-to-one calls via WebRTC and group calls through your MediaSoup server. The implementation will focus on stable real-time communication, clean UI components, and seamless API interaction with your already tested backend. The calling feature will include call initiation, connection management, media controls (mute/video), and group call handling, built in a modular way so it can later be merged easily into your main Flutter application. Let’s chat… Thanks

@rahuliitm69

Hi there, I have worked on WebRTC based calling features and can help build the front-end calling module for your project. I will first review your existing APIs, signaling flow, and the MediaSoup setup so I understand how the one-to-one and group calls are expected to work. After that, I will build the calling module in Flutter that connects with your backend and handles WebRTC for one-to-one calls and MediaSoup for group sessions. The module will include the call screens, join/leave logic, media stream handling, and proper connection management so calls stay stable. Once everything is tested, the code can be easily merged into your main Flutter app. I will also share clear documentation for the setup and integration. After reviewing your API docs I can give you the exact timeline and budget. Let’s connect once so I can go through the API flow and get started. Thanks, Rahul A.

@AhteshamAK

Hello there! Ahtesham here, ready to bring your calling feature to life. With your backend already polished and humming like a happy server, I can jump straight into crafting a sleek WebRTC 1-to-1 calling flow and a robust MediaSoup-powered group call interface using either Flutter or Kotlin. I'll structure the project as a separate frontend module that cleanly interfaces with your existing APIs, ensuring smooth integration back into your main Flutter app later. Expect clean code, documentation that won't make future-you cry, and a build that handles real-time calls without drama. Best regards, Ahtesham

@pinkeegupta

Hi I have read your requirements and I am sure 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 , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju

@temoberishvili

Hello, I’d be glad to help implement the calling feature for your project. I have experience building real-time communication apps using WebRTC, Flutter, and backend media servers like MediaSoup. I can develop the front-end calling module in a separate Flutter (or Kotlin) project that connects to your existing APIs, supporting both one-to-one calls via WebRTC and group calls through your MediaSoup server. The implementation will include call UI, signaling integration with your backend, connection management, and proper handling of audio/video streams. After testing, the code will be structured so it can be smoothly merged into your main Flutter application. I will also provide clear documentation, setup steps, and testing guidelines.

@a4logic

Hello, Dear Client, Thank you for considering our team at Our Software for your Android app development project. Allow me to assure you that we're more than equipped to handle the task at hand. Having worked tirelessly with Kotlin and Flutter, we are well-versed in developing seamless, feature-rich apps. Additionally, our proficiency with WebRTC and MediaSoup is directly aligned with your need for one-to-one calls and group calling - skills that are crucial for your project's success. As leaders in the global marketplace, we understand the significance of proper documentation, a budget estimate, and timeline adherence. Offering you world-class services isn't limited to just the development phase; it includes preparing and presenting the project in its entirety. With an emphasis on customer satisfaction and positive feedback, we prioritize meeting your expectations at every step of our journey together. Remember, no project is too big or too small for us. We believe in mirroring your dreams into a reality that helps skyrocket your business. Believe in miracles with us; choose Our Software and let's turn this project into an outright success! We appreciate your attention to our proposal and look forward to starting this remarkable venture with you! Yours sincerely, Yasir Thanks!

@reedsystems

Hi, I'd be happy to help with developing the calling feature for your project. I have extensive experience in both Flutter and Kotlin, and I've successfully worked on similar projects before. For the one-to-one calls, I will implement WebRTC using Flutter. For group calls, I will leverage our MediaSoup server to ensure a robust and scalable solution. The front-end implementation will be designed to seamlessly integrate with your existing backend APIs. The timeline for this project is as follows: - Week 1: Setup and initial code development - Week 2: Integration with existing backend APIs - Week 3: Testing and debugging - Week 4: Final testing and documentation Once the calling features are fully implemented and tested, I will merge the logic into your main Flutter application. For documentation, I will provide detailed guides and notes to ensure a smooth integration process. You can view my portfolio at https://www.freelancer.com/u/reedsystems for more information on my previous work. Looking forward to your response. Best regards, Reed

@swajantalukdar

We have recently developed several chat applications based on similar technology, and these apps are almost similar to WhatsApp. Do you have any design files for visual expectations? let's discuss to complete the project in the minimum time. Thank you.

@Desmonds9

Your backend foundation with WebRTC and MediaSoup is well established, providing a solid base for integrating one-to-one and group calling features on the front end. We understand the challenge of building a separate Flutter or Kotlin module that must reliably interface with your existing APIs and later merge seamlessly into your main Flutter app. Projects like this can become complicated if front-end and back-end synchronization is unclear or if modular integration is not thoughtfully planned, leading to unexpected delays or unstable functionality. To address this, Ezra Global emphasizes clear communication and incremental development with thorough testing at each stage, ensuring alignment and reducing integration risks. We focus on delivering clean, maintainable code along with comprehensive documentation to support a smooth merge into your main application. We suggest starting with a detailed review of your current API and backend interactions to confirm assumptions and outline the clearest path forward. — Ezra Global

@RahulSiriya

Hi — I can implement the Android client (Flutter or Kotlin) to add WebRTC 1:1 calling and MediaSoup-based group calling that connects to your existing, tested backend. Relevant proof: - Flutter / Kotlin client capabilities: implement call UI, media permissions, audio routing and lifecycle handling to match mobile expectations. - WebRTC + MediaSoup integration: implement signaling, peer connections, mediasoup transports/produces/consumes, and synchronize with your server APIs. - API & auth work: integrate your existing REST/WS endpoints, handle token/session renewal, and media error handling. Short plan: - Approach: scaffold separate Android project (Flutter or Kotlin per your choice), implement 1:1 WebRTC first, then MediaSoup group flow using your signaling. - Milestones: repo + env setup → 1:1 call → group call → polish, docs and merge instructions. - Quality & testing: end-to-end tests with your backend, device testing on Android (low/high-end), logging and crash handling. Two quick questions: 1) Do you prefer Flutter or Kotlin for the initial client? 2) Can you share signaling message specs and STUN/TURN credentials (if needed)? If you confirm the platform I’ll send a detailed timeline and budget. You can check my reviews on my profile — ready to draft the estimate.

@TechizeBuilder

Hi, I came across your project "Android App Development (Kotlin/Flutter) for WebRTC 1-to-1 Calling & MediaSoup Group Calling (Backend Provided)" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, Flutter, Socket IO, App Developer, WebRTC. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@mughiraaa

Hello, I have reviewed the details of your project. i will create the calling feature using flutter with dart, connecting the frontend to your existing backend through rest and websocket APIs. one-to-one calls will use webrtc peer connections with audio and video streams, while group calls will connect to your mediasoup server for multi-user audio and video. the interface will include call screens, participant lists, mute/unmute, and basic call controls with smooth transitions between one-to-one and group calls. testing will ensure stable connections, low latency, and proper media synchronization across devices, while error handling retries failed connections automatically. the code will be modular so it can be merged into your main flutter project without conflicts. Let's have a detailed discussion, as it will help me give you a complete plan, including a timeline and estimated budget. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@NEHABHAT92

With over 9+ years of experience in mobile and web development, my team and I have a deep understanding of Flutter, Kotlin and Mobile App Development. We can confidently claim that we're the perfect fit for this project. Our proficiency with WebRTC and MediaSoup server is evident in the successful implementation of numerous call-based applications. By opting for our services, you're not just getting skilled developers but also a commitment towards clean coding, efficient communication between front-end and back-end, as well as rigorous testing methodologies to ensure high quality deliverables. As I've also mastered PHP, you can be assured that our front-end implementation will seamlessly communicate with your existing backend APIs. Moreover, apart from completing projects on time, we provide free after-delivery support for 3 months; so if any issue arises in the future, we'll be there to assist. Another advantage? We offer effective project costs without compromising on quality. Choosing us means getting a strong blend of experience and expertise that translates your vision into reality. In conclusion, my team and I are prepared to implement a powerful calling system incorporating one-to-one calls with WebRTC and group calls supported by your MediaSoup server - all developed through either Flutter or Kotlin. With us on your side, you can consider it done efficiently, effectively and most importantly, as per your budget and timeline. We eagerly await the opportun

@sheikhasad2662

Hi, I can help implement the calling features for your project. I have experience working with real-time communication systems using WebRTC, and integrating them with existing backend APIs. Since your backend and MediaSoup server are already prepared, I can focus on building the front-end calling module in Flutter so it can later be merged smoothly into your main Flutter application. The implementation will include one-to-one calling using WebRTC and group calls through your MediaSoup server, with proper signaling through your existing APIs. I will build the calling interface, manage media streams, handle connection states, and ensure stable audio/video communication for both private and group sessions. The structure will be clean and modular so it can easily be integrated into your main project later. I will also provide clear technical documentation, explaining the architecture, API communication flow, and how the calling module connects to your backend. This will make it easier for your team to maintain and extend the feature after integration. I’m happy to review your API documentation and MediaSoup setup to provide a precise timeline and budget estimate for the implementation. Best regards, Muhammad Asad Ali

@Cmonosoft

Hello sir, I am very interested in implementing the calling module for your existing project. I have solid experience working with WebRTC based one to one communication and MediaSoup powered group calling systems, along with building production ready mobile interfaces using Flutter and Kotlin. Since your backend and signalling flow are already developed and tested, my focus will be on creating a clean, modular front end calling layer that communicates efficiently with your existing APIs. I will design the call UI, session management logic, media stream handling, and connection lifecycle in a way that can be easily merged into your main Flutter application later. I am ready to start immediately and can share similar real time communication experience during discussion. Thank you Saurabh

@fullstack0407

I am excited to submit my proposal to implement real-time calling features for your existing project using Flutter or Kotlin. Since your backend and MediaSoup server are already developed and tested, my work will focus entirely on the frontend integration, ensuring seamless communication with your existing APIs.

@malikabdulbasit3

With my extensive experience in mobile app development, particularly in Flutter, and building seamless user experiences through the integration of Firebase and REST APIs, I am confident that I am the best fit for your project. I play around with these technologies day in, day out to deliver high-quality apps. I'm also well-versed in using WebRTC and have successfully implemented group calling features using MediaSoup servers. Moreover, my penchant for leveraging automation to amplify productivity could be particularly advantageous for your project. From designing and deploying AI-powered automation agents to streamlining backend processes through tools like n8n and Make, I can ensure that your app functions smoothly even when handling complex tasks like concurrent calls. Finally, I understand the value of proper documentation, realistic budgeting, and timely delivery for a project of this nature. Therefore, with me on board, you can rest assured that your front-end implementation will be in safe hands. Let's create something great!

@SmartCodeDev

Hello client, I can implement the front-end calling features using Flutter or Kotlin, integrating one-to-one calls with WebRTC and group calls through your mediasoup backend. I will build the calling module in a separate project that communicates with your existing APIs, ensuring it can be smoothly merged into your main Flutter application after testing. I will also provide clean code, integration documentation, and a clear timeline for development and testing. Looking forward your response. Thank you.

@DigitalNightOwl8

Hey Mate , Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Socket IO, Flutter, App Developer, WebRTC, Kotlin and Mobile App Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Many thanks