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Looking for Expert Team to Build FULL CUSTOM Mobile App (NO Agora / NO 3rd-Party SDK) Hello Freelancers, We are looking for a highly experienced mobile app development team or individual to build a large-scale FULL CUSTOM real-time communication platform. Important: This project must be developed using FULL CUSTOM technology. No Agora No Twilio No third-party calling or messaging SDK No ready-made WebRTC SaaS platforms All signaling, media handling, backend logic, scaling, and security must be implemented from scratch. Only expert-level developers should apply. Core Features (Full Custom System) Video & Voice Communication Video Call (1-to-1 and Group) Voice Call (1-to-1 and Group) Screen sharing during calls Meeting system with host and participant controls (similar to Zoom) Call and meeting recording Call and meeting history Teaching and learning via calls Billing and disbursement from teaching sessions Notification and alert system for users Custom Chat System One-to-one chat Group chat Broadcast group (Message sent once, delivered as individual inbox messages) Group creation for chat and calls Invite friends using contact list Referral link sharing Device & Call Utilities App-to-SIM SMS App-to-SIM call Full call history tracking NFT & Token System Video calling NFT token Tracking video NFT token Token-based access control Affiliate & Wallet System Three-generation affiliate earnings Earning wallet Main wallet (for all charges) Wallet-to-wallet transfer between users Add referral after signup if skipped initially Earning wallet integration with existing [login to view URL] database Plan-2: Tracking, Boost & Entertainment Module Tracking System Real-time location tracking Geo-fence Nearby friends tracking Group-based tracking Special member tracking Distance-based search (meter-based) Event attendance tracking (leader controlled) Kids tracking system School and home attendance confirmation Emergency call feature Boosting & Commission System Internal boosting system Commission-based boosting Social media data or cookie-based boosting logic Entertainment & Utilities Live TV (local and international) Live cricket and football score view Live radio Live weather updates Technical Requirements Custom signaling server Custom media server or streaming pipeline Strong experience with low-latency audio and video systems Understanding of SFU and MCU architectures Mobile App: Flutter, React Native, or Native Android and iOS Backend: Node.js, Go, or Rust (proposal-based) Database: PostgreSQL, MongoDB, Redis Scalable and secure architecture (microservices preferred) Secure wallet and affiliate system Full source code and technical documentation required Who Should Apply Proven experience in building custom real-time communication platforms Strong knowledge of WebRTC internals, RTP/RTCP, and signaling Experience with media servers and real-time streaming Experience with wallet, fintech, or affiliate systems Strong DevOps and system scaling skills Include in Your Proposal Timeline and milestone breakdown Estimated budget Post-launch support and maintenance plan
Project ID: 40211939
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Active 22 days ago
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110 freelancers are bidding on average $1,702 USD for this job

I have over 10 years of experience in web and mobile development, specializing in custom solutions like the one you're looking for. I understand the unique challenges of building a FULL CUSTOM real-time communication platform without relying on third-party SDKs like Agora or Twilio. In the past, I have successfully delivered projects in the fintech and blockchain domains, showcasing my expertise in building secure and scalable systems. One notable project involved integrating blockchain technology into a telecommunication platform, providing secure and transparent transactions for users. If you're looking for a highly experienced team that can meet your project requirements and exceed your expectations, look no further. I am ready to discuss your project details further and provide you with a tailored solution that fits your needs perfectly. Feel free to reach out to me to discuss your project requirements in more detail and take the first step towards creating a cutting-edge communication platform that sets you apart from the competition.
$1,200 USD in 20 days
9.0
9.0

I have carefully reviewed the project requirements for the Full Custom Mobile Communication Platform Development. With my expertise in PHP, Mobile App Development, MySQL, Node.js, and Laravel, I am confident in delivering a top-notch solution. The budget is flexible and can be adjusted based on the project scope. My focus will be on meeting your requirements efficiently. Please review my 15-year-old profile to see my extensive experience. I am ready to discuss the details and begin working on the project. Looking forward to your response.
$1,050 USD in 21 days
8.7
8.7

Hello I have read your job and I am very interested in developing the custom mobile communication Platform for you, since I have done a similar type of project, so I am very clear with the flow. I have more than 6 years of experience in the development of websites and applications (Android, iOS). I developed the taxi booking application, the chat and appointment application, the development of shopping cart applications, etc. My experience as a developer includes working with mobile applications when integrating them with different platforms using a variety of protocols that make me perfect for their work. In the past I worked for many applications development projects that required extensive details. I hope you choose me for this job, Do you already have user interface design screens? Please share the details of your project to start working together, Waiting answer, Thank you Rahul B
$2,000 USD in 22 days
8.7
8.7

We are an expert team ready to build your full custom real time communication platform from scratch no Agora, Twilio, or 3rd party SDKs. We’ll implement end to end signaling, media handling, low latency video/audio, group calls, chat, recording, NFTs, wallets, and affiliate logic. Frontend can be Flutter/React Native, backend Node.js/Go/Rust with PostgreSQL/MongoDB/Redis. Our architecture will be fully scalable, secure, and microservices based. Deliverables include full source code, technical documentation, and post launch support. We’ll provide a detailed timeline, milestone based plan, and budget estimates tailored to your multi-module, production grade requirements.
$1,125 USD in 7 days
8.3
8.3

Hello, We are an expert real-time communication engineering team specializing in fully custom RTC platforms — no Agora, no Twilio, no third-party SDKs. We build custom signaling, SFU/MCU media servers, low-latency audio/video, recording, chat, wallets, NFTs, and affiliate systems from the ground up. Strong expertise in WebRTC internals (RTP/RTCP), scalable microservices, and secure mobile backends. ✔ Full source code ✔ Scalable & secure architecture ✔ Long-term support Ready to share architecture, timeline, and budget on request.
$850 USD in 7 days
7.5
7.5

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
$1,125 USD in 7 days
7.1
7.1

Hi, I have 11+ years experience in mobile development with strong background in custom communication and messenger platforms, including chat, video streaming, and real-time features. I’ve built and shipped large-scale apps (including a messenger app with 1M+ downloads), with custom media handling and scalable architectures. I understand your requirement for a fully custom stack (no Agora/Twilio/SDKs) and can design: Custom signaling + WebRTC-based calling system Chat, group calls, meetings, and recording Wallet, affiliate, and token modules Scalable microservice backend + secure infra Can share architecture, milestones, and delivery plan. Best, Ashish Negi
$2,525 USD in 7 days
6.3
6.3

Hello 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, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise 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
$1,000 USD in 30 days
6.6
6.6

Hi! Your vision for a fully custom-built real-time communication platform—without relying on any third-party SDKs—truly excites me. With deep expertise in building scalable low-latency audio/video systems, custom signaling and media servers, and secure wallet & affiliate solutions, I’m confident my team can deliver a robust, scalable, and secure mobile app and backend architecture tailored exactly to your needs. We have strong experience across WebRTC internals, SFU/MCU architectures, and fintech integrations, and we prioritize clean, deploy-ready code with thorough documentation. I’d love to discuss your timeline, milestones, and budget to align expectations and ensure post-launch support for smooth scaling and maintenance. Looking forward for your positive response in the chatbox. Best Regards, Arbaz T
$1,000 USD in 7 days
6.4
6.4

Dear Client, I am a highly skilled and experienced mobile app developer with expertise in PHP, MySQL, Laravel, Node.js, and Flutter, based in Bangladesh. I have successfully completed numerous projects involving backend development, microservices, and WebRTC integration. I understand your need for a custom mobile communication platform and am confident in my ability to deliver a high-quality solution tailored to your specific requirements. My approach involves leveraging my extensive experience in backend development and Flutter to create a robust and efficient platform that meets all your communication needs. I prioritize clear communication, reliable delivery, and a solution-focused mindset to ensure the success of every project. I am eager to discuss your project further and collaborate on bringing your vision to life. Looking forward to the opportunity to work together. Best regards,
$750 USD in 7 days
5.8
5.8

Hello Freelancers, I have carefully reviewed the details of your project for building a full custom mobile communication platform without using any third-party SDKs like Agora or Twilio. I understand the importance of developing this project from scratch, including signaling, media handling, backend logic, scaling, and security aspects. Our team specializes in providing IT services, including custom software development, web platforms, mobile app development, blockchain solutions, and AI services. We have a proven track record of delivering high-quality solutions tailored to our clients' specific requirements. I would love to discuss your project further to understand your needs in detail. Please feel free to connect with me in the chat so we can explore how we can help you achieve your goals with this custom mobile communication platform. Let's have a detailed discussion to create a comprehensive plan, including a timeline and estimated budget. I will also share our portfolio to showcase our expertise in similar projects. Looking forward to hearing from you soon. Best Regards, Mughira
$1,100 USD in 7 days
5.6
5.6

Building a full custom real-time communication platform without any third-party SDK is a challenging but doable project based on my experience helping a client build a bespoke video calling and messaging app from scratch. I handled everything from signaling, media servers, and backend scaling to custom chat and wallet integration. To clarify the architecture, do you prefer an SFU or MCU approach for media routing? Also, how complex do you expect the billing and affiliate wallet system to be—just basic tracking or full transactional records with analytics? Here is a rough timeline I suggest: - Month 1–2: Signaling server, media server design, and base call functions (video, voice, screen share) - Month 3: Meeting system, recording, chat, and notifications - Month 4: Wallet, affiliate system, and NFT token integration - Month 5: Tracking, boosting, entertainment modules, final testing - Month 6: Deployment, documentation, and post-launch support I estimate the budget around $180k given the scale and custom nature but can provide detailed milestones after discussing priorities. I will provide full source code, docs, and handle scaling and security from the start. Ready to begin the detailed technical scoping immediately.
$1,500 USD in 7 days
5.4
5.4

Drawing on my 9+ years of experience in mobile app development with a strong focus on webRTC, I believe I'm the ideal fit for your Full Custom Mobile Communication Platform project. Understanding the significant responsibility and challenges ahead, I guarantee to build your platform using FULL CUSTOM technology without relying on third-party SDKs. Be it video & voice communication, screen sharing, meeting control or teaching through calls - I have successfully executed similar functionalities backed with my background in MySQL, Node.js, and PHP. Additionally, my team and I are well-versed in Flutter, React Native, Native Android and iOS development - making us flexible in accordance with your preference. We are also fluent in technologies such as PostgreSQL, MongoDB and Redis that align with your database requirements. Working with media servers and real-time streaming is also a forte of ours, ensuring we can deliver the low-latency audio and video system you need for your project. Our experience in building wallet, affiliate and fintech systems further enhance our understanding of your project's unique skill demands. As an added bonus, our company offers an effective cost structure for project development that'll help you stay within budget while we provide top-notch services. Moreover, we back our work quality with free 3 months support post-delivery - assuring you of our commitment even beyond project completion. In conclusion, choosing us means selecting
$1,125 USD in 7 days
5.6
5.6

Hi, As a seasoned software application developer with over 15 years of experience, I have specialized in building high-performance, low-latency systems capable of handling complex, real-time workloads. I have a strong background in end-to-end project management and have led teams in delivering various SaaS platforms. Additionally, being an AI/ML expert has equipped me with the necessary skills to navigate advanced functionalities such as NFT tokens and token-based access control, which are integral parts of your project. In terms of mobile app development, I have a successful track record of creating efficient, secure apps for both Android and iOS using platforms such as Flutter, React Native, Swift, and Kotlin. Notably, my strong understanding of backend systems including Node.js and databases like MySQL and PostgreSQL will come in handy for this project as it requires deep expertise in these areas. Moreover, my history of working with renowned companies like Avaya and Pramati adds further credibility to my candidacy. I am committed to quality workmanship visible in my portfolio as well as post-launch support, your project will not only be built on time but will also receive continuous maintenance to ensure perfect functionality. I believe this collaborative approach will give you the best results for your custom mobile communication platform!
$1,125 USD in 30 days
5.1
5.1

Hello, We are a senior real-time communication development team specializing in FULL CUSTOM WebRTC platforms — no third-party SDKs, no SaaS tools, and no prebuilt calling systems. We design and implement everything from scratch including custom signaling servers, media pipelines (SFU/MCU), low-latency RTP/RTCP handling, secure scaling architectures, and native mobile integrations. Our expertise covers: • 1:1 & group video/voice calls, screen sharing, meetings & recording • Custom chat systems (1:1, group, broadcast) • Real-time notifications & activity tracking • Secure wallet, token systems & affiliate logic • High-performance backend with Node/Go + Redis/Postgres We’ve built WebRTC-native mobile apps and browser platforms handling live media injection, custom streaming, and large-scale concurrency. We can deliver: ✔ Full source code & documentation ✔ Milestone-based execution plan ✔ Scalable microservice architecture ✔ Long-term support Happy to share architecture samples, timelines, and a detailed technical roadmap. Looking forward to discussing your vision. Best regards, Inciterz Team
$1,500 USD in 20 days
4.8
4.8

With the Web Crest team, you're guaranteed an unrivaled level of expertise in developing custom mobile applications, making us a perfect match for your ambitious project. Over the past decade, we've honed our skills in crafting web and software solutions that are robust, scalable, and above all, 100% customized to your unique requirements. This includes our deep understanding of Flutter - which can be instrumental in fashioning an intuitive and responsive interface while optimizing performance across devices. What sets us apart is our extensive knowledge of backend technologies like Node.js & Rust combined with databases like PostgreSQL, MongoDB & Redis. This skillset will enable us to set up an architecture that's both highly secure and easy to maintain. With the comprehensive understanding we possess about signaling servers and media streaming pipelines, we can implement a solution that's tailored to your specific use-case while adhering to low-latency requirements for audio-video communication.
$1,000 USD in 7 days
4.8
4.8

I can build your full custom mobile communication platform from scratch, ensuring all components like signaling, media handling, backend logic, and security are fully custom-coded without any third-party SDKs. With extensive experience in PHP, Node.js, Laravel, and mobile app development, I will create a scalable and secure system featuring 1-to-1 and group video and voice calls, screen sharing, meeting controls, recording, billing, notifications, and a tailored chat system. My approach focuses on clean, maintainable code and a robust backend architecture using MySQL and Laravel for reliability and performance, ensuring your platform handles growth smoothly. Would you prefer a detailed project roadmap before starting development to align on milestones and key features?
$750 USD in 10 days
5.0
5.0

As an established and well-trusted web design and development company based in India, my team firmly fits the bill for your full custom mobile app communication platform project. Armed with an impressive 7+ years of experience, our expertise stretches far beyond mere web and graphic design. Our skills in mobile app development (tapping into Android, iOS, Flutter, React Native), backend development (Node.js, Go, Rust), and database management (PostgreSQL, MongoDB) make us ample choice for your technical requirements. What truly sets us apart, however, is our acumen in crafting fine-tuned solutions from scratch - a must-have quality for your project. We understand the importance of building platforms that are secure, scalable, and tailor-made to suit their purpose. And this comprehension stems not just from our theoretical understanding but plays out in every successful project we've executed. Moreover, given the scope of your venture, we know the significance of post-launch support and maintenance - a feature we commit to deliver with utmost dedication and efficiency. We are confident that our distinctive blend of skillful designing, comprehensive know-how in digital campaigns and SEO strategies along with your feature-filled desirable site will align to create a product that not only does business but resonates with users. Trust us? Contact us!
$1,125 USD in 7 days
5.0
5.0

We are specialised in Tele Medicine app which has a core feature of Audio/Video calls. As an accomplished freelancer with over a decade of experience in mobile app development, I believe my expertise aligns perfectly with your requirements for the full custom communication platform project. Having developed numerous mobile apps using technologies like Flutter, Java, Kotlin, Swift, and more, I'm confident in my capability to deliver an application that successfully fulfills all your core features and beyond. One of the strengths that separate me from my peers is my proficiency in not just a singular stack, but backend knowledge that spans across multiple frameworks like Node.js, Go, Rust, Database (PostgreSQL, MongoDB, Redis). For this intricate and critical project of yours, this range of skills is crucial in designing the architecture that is scalable and secure. I also have prior experience developing real-time communication platforms and my deep understanding of WebRTC internals and signaling makes me uniquely placed to build this app to satisfy your specific requirements. In addition to delivering a high-quality product within a clearly broken-down timeline and estimated budget, I commit myself beyond delivery. If you want an experienced hand adept at handling complex projects from inception to maintenance stage with equal finesse - I am here to bring your idea to life!
$1,450 USD in 16 days
4.8
4.8

Hello. After reviewing the job description, I am confident that I can deliver you great result because I have rich experience in this role. I am eager for the opportunity to collaborate with you and am looking forward to discussing how I can contribute to your project. I believe that collaborating to implement your need is more valuable than focusing solely on budget considerations. I hope we can connect soon and begin working together. Awaiting for your positive response. Thanks.
$1,000 USD in 30 days
4.4
4.4

Dhaka, Bangladesh
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