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I'm looking for an experienced developer to create a cross-platform VoIP app using WebRTC. The app will support: - Voice calls - Video calls - Group calls - Chat Ideal skills and experience: - Proficiency in WebRTC - Experience with mobile app development for both iOS and Android - Strong background in VoIP technologies - Knowledge of real-time communication protocols Please provide examples of similar projects you've completed.
Project ID: 39718343
126 proposals
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Active 8 mos ago
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126 freelancers are bidding on average $36 USD/hour for this job

Hello, I am an experienced developer specializing in cross-platform VoIP applications using WebRTC technology. Key Expertise: - Building voice, video, and group call features with WebRTC for iOS and Android - Implementing real-time chat integrated with calls for seamless communication - Deep understanding of VoIP protocols and optimization techniques for reliable connections I have delivered similar projects involving real-time communication apps that support high-quality voice and video interactions across platforms. I’m happy to share examples from my portfolio upon request. Best regards, Vicky Keswani
$38 USD in 40 days
9.4
9.4

Hello, I understand that you need a cross-platform VoIP app using WebRTC that supports voice calls, video calls, group calls, and chat. I have extensive experience in mobile app development for both iOS and Android, along with a strong background in VoIP technologies and real-time communication protocols. I have worked on similar projects where I implemented seamless communication features, ensuring a great user experience across devices. I am excited about the opportunity to bring your vision to life and I can provide examples of my past work that align closely with your requirements. This will demonstrate my capability in handling the complexities involved in developing a robust VoIP application. Could you share more details about the specific features you want for the chat functionality? Thanks, Muhammad Awais
$25 USD in 31 days
8.9
8.9

Hello, This VoIP app sounds like a great project! I understand you need a developer experienced in WebRTC to build a cross-platform app with voice, video, group calls, and chat functionality. My expertise is a perfect fit for this task. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Similar projects include a secure video conferencing platform and a mobile VoIP app. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas
$26 USD in 40 days
8.4
8.4

With over 10 years of experience in web and mobile development, including expertise in WebRTC, VoIP technologies, and cross-platform app development, I understand the importance of creating a seamless and reliable communication platform for your project. You are looking for a developer to build a cross-platform VoIP app with support for voice calls, video calls, group calls, and chat. In the past, I have successfully delivered projects in the telecommunications industry, specifically focusing on real-time communication solutions for various clients. My experience aligns perfectly with the requirements of your project, and I am confident that I can create a high-quality app that meets your needs and exceeds your expectations. I encourage you to reach out to discuss your project in more detail. I am eager to showcase my skills and expertise in developing cross-platform VoIP apps using WebRTC and look forward to the opportunity to work with you on this exciting project.
$40 USD in 15 days
8.2
8.2

Hello, I am an experienced developer specializing in cross-platform VoIP applications with expertise in WebRTC. I create high-performance apps supporting voice, video, and group calls, along with real-time chat for both iOS and Android. My focus is on delivering robust, scalable, and user-friendly solutions with secure, low-latency communication. I am eager to collaborate on your project and demonstrate how I can bring your vision to life with a seamless, production-ready VoIP application. Best regards, Niral D
$25 USD in 40 days
8.1
8.1

With a strong background in mobile development, vast knowledge of real-time communication protocols, and profound proficiency in WebRTC, I am your ideal choice to craft your cross-platform VoIP/WebRTC app. My name is Paul, and I'm more than just a software engineer; I am a problem-solver who blends cutting-edge technologies with practical applications to turn ideas into concrete solutions that drive real business outcomes. What sets me apart is my expertise in integrating AI within app development processes for greater automation and predictive insights. I don't just build apps; I create intelligent systems that learn, adapt, and optimize performance over time. In line with this, my full-stack proficiency means you can trust me to oversee the complete development lifecycle – from concept to deployment. In past projects, I have employed similar techniques and technologies that your project requires such as TensorFlow and PyTorch for deep learning, Node.js for the backend RESTful API services as well as Real Time Processing using SQL/NoSQL databases. As a result-oriented professional who puts the client's needs first, my commitment to you extends beyond mere compliance with details – I'll ensure your final product not only meets but exceeds your expectations. Let's bring your vision for this app to life.
$50 USD in 40 days
8.2
8.2

Hello Gregory, I am excited about the opportunity to work on the development of a cross-platform VoIP/WebRTC app. With my expertise in iOS Development, Mobile App Development, Android, iPhone, and Mobile Development, I am confident in delivering a high-quality solution that meets your requirements. I understand the need for a VoIP app supporting voice calls, video calls, group calls, and chat functionalities. My experience with WebRTC, real-time communication protocols, and mobile app development equips me to tackle this project effectively. I propose to start by conducting a detailed analysis of the requirements and then proceed with the development phase. You can view examples of my previous projects in my portfolio: - MY WORK STATS: ✨ https://www.freelancer.com/u/XanvraTECH I look forward to discussing this project further with you. Best regards, Warda Haider
$25 USD in 40 days
6.9
6.9

Dear Gregory N., We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Mobile App Development, iPhone, Android, VoIP, iOS Development, Mobile Development, WebRTC, Video Conferencing and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$30 USD in 5 days
7.2
7.2

⭐⭐⭐⭐⭐ Dear Valuable Client, CnELIndia, led by Raman Ladhani, has extensive experience in developing cross-platform VoIP and WebRTC applications. We specialize in building iOS and Android apps that support voice, video, group calls, and real-time chat with secure, low-latency communication. Our team is proficient in WebRTC, SIP, and other VoIP protocols, ensuring seamless connectivity and high-quality audio/video. We follow a structured development approach: requirement analysis, UI/UX design, cross-platform architecture setup, integration of real-time communication features, rigorous testing, and deployment. Past projects include scalable video conferencing and enterprise VoIP apps with multi-user support and chat. CnELIndia can provide end-to-end support, from development to maintenance, ensuring your project is delivered on time with optimal performance.
$38 USD in 40 days
7.0
7.0

Hello, I understand that you are looking for an experienced developer to create a cross-platform VoIP app that utilizes WebRTC for voice, video, group calls, and chat functionalities. With my strong background in mobile app development for both iOS and Android, along with extensive experience in VoIP technologies and real-time communication protocols, I am confident in delivering a robust application tailored to your needs. I have successfully completed similar projects in the past, focusing on seamless communication features that enhance user experience and engagement. My approach will include thorough planning, development, and testing to ensure the app meets your expectations for performance and reliability. What specific features do you want to prioritize in the app for launch? Thanks, Shamshad
$25 USD in 31 days
6.7
6.7

Hello Gregory, I understand that you are seeking an experienced developer to create a cross-platform VoIP app using WebRTC, supporting voice calls, video calls, group calls, and chat functionalities. With my expertise in mobile app development for both iOS and Android, proficiency in WebRTC, and strong background in VoIP technologies, I am well-equipped to deliver a high-quality solution. Effective communication and collaboration will be prioritized throughout the project to ensure your requirements are met. You can view examples of similar projects I have completed in my portfolio https://www.freelancer.com/u/Curveballsol I am confident in my ability to successfully execute this project and look forward to the opportunity to work with you. Best regards, Curveball Solutions
$38 USD in 40 days
6.4
6.4

Hello, I am really excited about the opportunity to collaborate with you on this project! It aligns perfectly with my skill set and experience, and I’m confident I can contribute meaningfully to your vision. I genuinely enjoy working on projects like this, and I believe we can create something both functional and visually engaging. Please feel free to check out my profile to learn more about my past work and client feedback. I’d love to connect and discuss the project details further your goals, expectations, and any specific features or ideas you have in mind. The more I understand your vision, the better I can bring it to life. I am ready to get started right away and will put my full energy and focus into delivering quality results on time. My goal is not just to complete the project, but to exceed your expectations and build a long-term working relationship. Looking forward to hearing from you soon! With regards! Divya
$25 USD in 40 days
6.2
6.2

Hello Gregory, I understand that you are looking for an experienced developer to create a cross-platform VoIP app using WebRTC. I have extensive expertise in mobile app development for both iOS and Android, with a strong background in VoIP technologies and real-time communication protocols. I will ensure effective communication throughout the project to deliver a high-quality app that meets your requirements. My portfolio includes successful projects in mobile app development, Android, iOS development, and mobile development. You can view my portfolio here: https://www.freelancer.com/u/SyedDigitals Best regards, Syed Muhammad Masoom Anzar
$27 USD in 40 days
5.7
5.7

Hi Gregory N. I reviewed your project "Cross-Platform VoIP/WebRTC App Development" It’s a great fit for my expertise. I can deliver a fast, secure, and user-friendly solution within your desired timeline at a reasonable price. With 500+ completed projects and a 4.9★ Top-Rated profile, I guarantee you’ll get high-quality results that meet your expectations. ★ Why Clients Choose Me • Proven Track Record → 400+ reviews, 500+ projects • Web Expertise → WordPress, Shopify, wix, Laravel, React, Vue.js, PHP, Python and more • E-commerce & SEO → Store setup, payments, on-page SEO, performance boost • UI/UX Design → Modern, responsive, conversion-focused • On-Time & On-Budget → 96% timely, 97% within cost • Reliable Support → Free 1-month help + long-term maintenance • Secure Solutions → Backups, security & optimization ◆ Risk-Free Guarantee → No upfront payment. Pay only when satisfied, with full money-back assurance. If you want a professional developer who delivers on time, on budget, and stress-free, let’s connect. I’ll turn your vision into a secure, rapid, and growth-focused digital experience. Best regards, Kausar Parveen
$50 USD in 40 days
6.4
6.4

With a profound proficiency in WebRTC, a prerequisite for the job, I am confident I can deliver far beyond your expectations. My previous work speaks for itself; I’ve successfully employed WebRTC to create cross-platform VoIP apps that have supported voice and video calls, group calls, and chat features. In addition to my strong background in VoIP technology, my experience with mobile app development for both iOS and Android platforms make me an ideal fit for this project. My expertise in native languages (Kotlin and Swift) only amplifies my capabilities. I also have a deep understanding of real-time communication protocols and have effectively employed them in my past projects. My commitment has always been towards achieving tangible results tailored specifically to meet clients’ needs. If you award me this project; we will not only be developing an incredible app but also forming an invaluable collaborative partnership! Let's bring your vision to life!
$35 USD in 40 days
6.1
6.1

Hello, Thank you so much for posting this opportunity it sounds like a great fit, and I’d love to be part of it! I’ve worked on similar projects before, and I’m confident I can bring real value to your project. I’m passionate about what I do and always aim to deliver work that’s not only high-quality but also makes things easier and smoother for my clients. Feel free to take a quick look at my profile to see some of the work I’ve done in the past. If it feels like a good match, I’d be happy to chat further about your project and how I can help bring it to life. I’m available to get started right away and will give this project my full attention from day one. Let’s connect and see how we can make this a success together! Looking forward to hearing from you soon. With Regards! Abhishek Saini
$25 USD in 40 days
5.9
5.9

Hello, I AM FULL TIME DEVELOPER FOR YOUR PROJECT I have over 9+ years of proven expertise in delivering complex projects end-to-end, I have carefully reviewed your requirements and can confidently execute this task with precision. The project aims to develop a cross-platform VoIP/WebRTC app supporting voice, video, group calls, and chat, where the focus is on efficiency, scalability, and user-centric design. Core features will include seamless real-time communication, reliable signaling, group session handling, and an intuitive chat/call interface. My approach will be to build a clean architecture with secure APIs, ensure smooth mobile integration for iOS and Android, and implement optimized WebRTC protocols for low latency and high-quality connections. By combining technical depth with practical execution, I will deliver a solution that is not only functional but also future-ready for scaling and enhancements. -->>WHAT I AM OFFERING- ->>100% DELIVERY OF WORK ->>HIGH-QUALITY, BUG-FREE CODE ->>DAILY PROGRESS UPDATES WITH NO COMMUNICATION DELAYS ->>2 YEAR POST-DEVELOPMENT SUPPORT TO ENSURE YOUR APP RUNS SMOOTHLY, FREE OF COST Let’s discuss in chat as I have some queries to ask regarding the project to proceed further. Jitendra
$26 USD in 40 days
5.9
5.9

I am very happy to get this opportunity to bid for your project. I have just read your requirements carefully and I am sure I can give you greatest result. I am very much interested in working with you as skill sets mentioned are exactly matched with mine. I have more than 7+ years of experience in Mobile apps Design and develop ( Flutter, React Native ). If you hire me, I'll do my best for you and you'll get a good result. I guarantee this with my high skill and experience. I want to discuss with you more details. please talk to me i have before many publised on play store I’ll do my best to finish all your projects perfectly within your requirements and deadlines. Waiting for your reply... Thank you chandan kandar
$25 USD in 40 days
5.9
5.9

Hello, I've faced challenges with NAT traversal in WebRTC before, which can complicate call reliability. I understand you need a robust cross-platform VoIP app with voice, video, group calls, and chat. My expertise in WebRTC and mobile development for iOS and Android aligns perfectly with your project. I have completed similar projects that involved real-time communication protocols. Let's build an app that meets your needs and exceeds your expectations.
$38 USD in 40 days
5.3
5.3

Hi, We understand that you're seeking an experienced developer to create a VoIP mobile app utilizing WebRTC that supports voice calls, video calls, group calls, and chat. Our team, with a strong background in VoIP technologies and real-time communication protocols, is equipped with the right skills and experience to meet your needs. We have proficiency in WebRTC and substantial experience in mobile app development for both iOS and Android. Could you share more details about the expected features for the chat functionality? And, do you already have a UI/UX design in mind, or would you like us to create it? We're committed to delivering a high-quality, user-friendly VoIP application that aligns with your vision and meets your users' needs. We'd be happy to discuss your project further over a call or message, at a time that suits you. If the project timeline is as per your expectation, we can start immediately. We look forward to hearing from you soon. Best Regards, Rohit
$45 USD in 30 days
6.5
6.5

Marbella, United Arab Emirates
Member since Aug 20, 2025
€750-1500 EUR
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₹12500-37500 INR
$750-1500 USD
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$30-250 AUD
$750-1500 USD
$30-250 USD
$15-25 USD / hour
$250-750 USD
£20-250 GBP
$30-250 USD
$25-50 USD / hour
₹12500-37500 INR
₹12500-37500 INR
$30-250 AUD
₹1500-12500 INR
₹1500-12500 INR
$30-250 USD