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I need a straightforward Android and iOS app whose entire purpose is to let strangers talk. The interface is almost minimal: one prominent button. Here is the exact flow I have in mind. When a user taps the button, the app pings a lightweight backend, waits until someone else pushes the same button, then instantly connects the two in a real-time voice call. No registration or login is shown at any point; the call is completely anonymous and the pairing is purely random. When either party hangs up, both return to the single-button screen and can tap again if they wish. You can lean on WebRTC, Agora, Twilio Voice SDK or any similar mobile-friendly VoIP stack—whichever you feel gives the quickest, most reliable call set-up and decent NAT traversal. I’m happy to hear your recommendation. The matching service can be something as simple as a queue stored in Firebase/Firestore or an autoscaling Node/Express container—again, I’m open to suggestions so long as latency stays low. Deliverables • Production-ready Android (Kotlin or Flutter) and iOS (Swift/Flutter) builds • Complete source code with clear build/run instructions • Small backend service that handles the random queue and triggers the voice session • Basic UI assets: splash screen, call timer, mute/end buttons • A short README describing the architecture, any third-party services, and how to swap credentials Acceptance • Two phones (one Android, one iPhone) placed on different networks can pair within five seconds of the second user tapping the button. • Voice quality remains stable for at least a five-minute call on average 4G. • No personally identifiable information is logged on the backend. If you’ve built voice-first apps before, especially anonymous chat or talk platforms, your experience will help us go live faster. Looking forward to seeing how you’d approach this.
Project ID: 40398010
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42 freelancers are bidding on average ₹27,917 INR for this job

Hi there, I have read your project requirement. You need a minimal, anonymous voice chat app (iOS & Android) where users tap a single button to get instantly paired with a random stranger and connect via real-time voice, with no login and no personal data stored. We can build this using Flutter for a single codebase (iOS + Android) and integrate a reliable VoIP stack like WebRTC or Agora for low-latency voice communication. A lightweight backend (Node.js + WebSockets/Firebase) will handle the matchmaking queue, ensuring users are paired within seconds. The system will be optimized for fast connection, stable call quality, and strict anonymity (no PII logging). UI will remain clean and minimal with essential controls (mute, end, timer). A few questions to clarify before proceeding: ==================================== Do you prefer Agora (faster setup, managed infra) or pure WebRTC (more control, slightly more setup)? Should we include basic moderation/safety controls (e.g., report/block) or keep it fully minimal for MVP? Do you want any geographic matching (same country/region) or completely random global pairing? Expected user scale at launch (helps decide backend architecture and scaling approach)? Best Regards, Srashtasoft Team
₹35,000 INR in 7 days
7.1
7.1

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
₹25,000 INR in 7 days
7.0
7.0

Hi, I can build your app using Flutter + WebRTC/Agora for fast, reliable voice connections. I’ll implement a lightweight matching backend (Node.js/Firebase queue) for instant pairing. Focus on low latency, NAT traversal, and stable 4G performance. Minimal UI with call timer, mute/end controls as required. Anonymous flow with no PII storage ensured. Clean, scalable code with full documentation. Ready to start.
₹25,000 INR in 7 days
6.0
6.0

With my deep experience in both mobile app development and Node.js backend, I am poised to create an Anonymous Voice Match App that meets all your specifications while delivering even more. Throughout my 5+ years as a developer, I have crafted diverse applications ranging from e-commerce platforms to SaaS solutions with one commonality - excellent user experience. The user-friendly nature of your app is a perfect match for my skills in responsive design, HTML, CSS and JavaScript. Voice-first applications hold no secrets to me as I have successfully created apps like this before. In particular, I developed an anonymous chat platform that saw me tap into the power of WebRTC and other mobile-friendly VoIP stacks to provide seamless low-latency calls, just as you desire for this project. Additionally, I’m versed in the use of Firebase/Firestore and can ensure your lightweight backend runs efficiently with minimal latency. Working with me guarantees the production of clean optimized code and on-time delivery with clear communication at every step. You would also benefit from my expertise in database management, API integration, performance optimization and UI/UX-friendly development during the course of this project.
₹25,000 INR in 7 days
5.2
5.2

As a seasoned developer with 9+ years of experience, I've been honing my skills in mobile app development and have successfully built numerous solutions in both Android and iOS platforms. My natural aptitude for identifying the optimal technology stack, allows me to swiftly tackle tough challenges and create efficient, user-friendly products. Over the years I've developed a proficiency in WebRTC, Agora, Twilio Voice SDK, and various similar mobile-friendly VoIP stacks — the very essence that your anonymous voice match app demands. Having created apps with real-time functionalities like chat and voice-calling before, I understand the nuances of delivering an intuitive, anonymous experience. While constructing your app, I will make sure that it satisfies your vision without sacrificing on user security or data privacy. You’ll be pleased to know that iAlso I maintain a low-latency setup by leveraging advanced storage systems such as Firebase/Firestore or an autoscaling Node/Express container. Additionally, as a full-stack developer with expertise in Node.js , I can develop a flawless backend service to handle the random queue and triggers for the voice sessions efficiently. Plus, my team will provide thoroughly documented source code for smooth future upgradation if required. Now let's turn this amazing idea into reality! Say yes to choiceful conversations!
₹25,000 INR in 7 days
5.5
5.5

I understand the unique demands of your Anonymous Voice Match app and with my decade-long experience, I can confidently assure you of reliable and scalable digital solutions. My specialization in mobile frameworks like Flutter and API design will be crucial in building an app that promotes efficient voice calls and seamless anonymous pairing. I have previously built voice-first applications which make me comfortable with the challenges of NAT traversal and ensuring voice quality remains stable. This positions me to implement either WebRTC, Agora or Twilio Voice SDK to maximize call setup speed while minimizing latency. Moreover, I can deliver on every aspect of the project – from providing production-ready builds for both Android (Kotlin or Flutter) and iOS (Swift/Flutter), developing a small backend service, creating UI assets like splash screen and call timer, to furnishing you with a complete source code with clear build/run instructions. In addition, I'll provide a short README that details the architecture of the application, any third-party services utilized, as well as how to change credentials. Let me leverage my skills to help take your project live faster!
₹25,000 INR in 7 days
4.1
4.1

I understand you need a minimal anonymous voice app with instant random pairing, fast connection, and stable call quality without any user identity. I will build a lightweight system using Flutter for cross platform apps and integrate WebRTC or Agora for reliable low latency voice calls with strong NAT handling. Backend will manage a simple queue system using Node or Firebase to instantly match users within seconds. UI will stay clean with a single action flow, call controls, and timer. I will ensure no personal data logging, stable performance, and quick pairing across networks with production ready builds and clear documentation
₹22,000 INR in 22 days
4.4
4.4

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Requirement Finalization ⟶⟶ VoIP Stack Selection (WebRTC/Agora) ⟶⟶ Backend Queue Logic ⟶⟶ Matching Engine ⟶⟶ Mobile App UI (1-Tap Flow) ⟶⟶ Call Integration ⟶⟶ Testing (Latency/Quality) ⟶⟶ Build & Delivery Key Highlights ✔ 1-tap anonymous calling — instant random pairing with zero login friction. ✔ Real-time matching — lightweight queue system (Node.js + Redis/Firebase). ✔ VoIP reliability — WebRTC/Agora for fast connection & NAT traversal. ✔ Cross-platform app — Flutter (recommended) for iOS + Android parity. ✔ Ultra-low latency — pairing within seconds using optimized signaling. ✔ Clean UI — single-button screen + call timer, mute, end controls. ✔ Privacy-first — no PII stored, fully anonymous sessions. ✔ Production-ready builds — TestFlight + Android APK included. Best Regards, Asad Mobile App Developer | VoIP Systems | Real-Time Apps Specialist
₹20,000 INR in 12 days
3.8
3.8

Having built multiple communication-based platforms including voice-first apps in the past, I can confidently say that I am the best fit to create your anonymous voice matching app. My team and I are highly proficient in Full-Stack Development with expertise in technologies like Node.js, which will be immensely helpful for your project. We're also well versed in leveraging AWS, Azure and Google Cloud technologies to create scalable and secure solutions, - two crucial requirements for your app. One of the major considerations for this project is low latency and reliable call setup. With our skills and experience in cloud-native, high-performance architecture design, we can ensure swift yet stable connections between users on different networks. In fact, I'm even open to adopting other mobile-friendly VoIP stacks like WebRTC or Agora, as long as they meet your requirements for both speed and stability. Beyond just building the app with a minimalist interface, we'll provide complete documentation with crystal clear build/run instructions alongside delivering production-ready Android (Kotlin or Flutter) and iOS (Swift/Flutter) builds. Moreover, our small backend service will be designed to handle random queueing effectively using either Firebase/Firestore or an autoscaling Node/Express container. With me at the helm of your project, you won't just get a functional app but detailed guidance to maintain and update it if needed.
₹25,000 INR in 7 days
3.8
3.8

The hardest part isn't the voice call itself. It's pairing two strangers in under 2 seconds so neither one drops off before the connection happens. Built an anonymous 1:1 voice app last year with WebRTC and Firebase queue. Average match time was 1.3 seconds, handled 500+ concurrent users without a hiccup. Are you planning any moderation layer, recording, or abuse reporting, or is this purely ephemeral with zero data stored after hangup?
₹25,000 INR in 7 days
3.1
3.1

Hello, I have read your project description and analyze your requirements. I am a flutter developer. I can develop your that fullfil your all requirements and ready for future with strong state mangements. Waiting for your response. Best regards
₹12,500 INR in 7 days
3.0
3.0

Hi, Your idea is refreshingly simple—but the challenge is making pairing instant and calls stable. Here’s how I’d solve it: Approach I’ll build a lightweight, low-latency matching system + reliable voice layer: • Frontend (Flutter) → Single codebase for Android & iOS, ultra-minimal UI (1-tap connect, timer, mute/end) • Voice (Agora SDK / WebRTC fallback) → Fast call setup, strong NAT traversal, stable 4G performance • Backend (Node.js + Firebase/Firestore) → Real-time queue system User taps → enters waiting pool Instant match when another user joins Backend triggers secure voice session (token-based) • No login, no PII → Only temporary session IDs, auto-expire after call How I ensure <5 sec pairing • In-memory + Firestore hybrid queue (fast matching) • Pre-generated tokens to reduce connection delay • Optimized signaling flow (no heavy processing) Deliverables • Production-ready Android + iOS apps (Flutter) • Scalable backend with matching logic • Clean UI (splash, call screen, controls) • Full source + setup guide • Tested cross-network pairing & 5+ min stable calls Quick questions: Should we include basic moderation (report/block) to prevent misuse, or keep it fully raw? Do you want a fallback text/chat option if voice connection fails? I can build this fast, clean, and scalable—ready for real users from day one
₹25,000 INR in 7 days
0.8
0.8

Hi, have done the similar kinds of applications developments, we can connect once for showcasing my stuff and projects what have been built insanely…
₹30,000 INR in 10 days
1.1
1.1

As an seasoned Full Stack Developer, I could certainly bring immense value to your Anonymous Voice Match App. My expertise in Node.js will help you in setting up a backend service that handles the random queue and triggers the voice session, while your requirement for WebRTC Agora or Twilio Voice SDK meshes perfectly with my knowledge of RESTful APIs for integrating third-party services. Additionally, my proficiency in deploying applications and managing databases on cloud platforms such as AWS would ensure efficient performance and security. Furthermore, I've worked extensively with mobile app development using Kotlin, Swift and Flutter. Most importantly, I understand the significance of preserving anonymity in your app and guarantee that no personally identifiable information will be logged on the backend. The essence of this app is prompt pairings resulting in a high-quality anonymous voice call and I assure you that's what I'll deliver.
₹18,000 INR in 9 days
0.1
0.1

I understand your requirement for a simple yet effective anonymous voice match app. I'll leverage my expertise in mobile app development to create a seamless experience for users. For the backend, I recommend using Twilio Voice SDK for its ease of integration and reliable call setup. I'll handle the WebRTC implementation to enable real-time voice calls between users. The app will feature a minimal interface with a prominent button, facilitating a straightforward user experience. I'll utilize my proficiency in React Native to develop the app for both Android and iOS platforms. To ensure a secure and stable connection, I'll implement proper NAT traversal and error handling. In the past, I've worked on several projects involving third-party API integrations, including payment gateways and CRM systems. I've also developed custom chatbot workflows and automation tools. Key features of the app will include a simple user interface, real-time voice calls, and anonymous pairing. The backend will be designed to handle a high volume of requests, ensuring a fast and reliable experience for users. For the edge cases, I'll ensure proper error handling and disconnection logic to prevent any issues during call setup or termination. This project will be completed with precision and care, ensuring a high-quality outcome that meets your expectations. To confirm, I'll need to clarify the type of VoIP stack you envision for the app? I can deliver this in 7 days.
₹23,665 INR in 7 days
0.3
0.3

Anonymous voice matching lives or dies on connection speed and backend queue logic. Agora SDK paired with a Firestore queue gets two strangers talking in under two seconds, and Flutter delivers identical UI on both platforms from one codebase. Built a similar random pairing app last year (text chat, not voice) where the matching algorithm was the hardest part to get right under load. What happens if one user stays idle on the waiting screen for more than 30 seconds, should the queue entry expire or persist until they manually cancel?
₹25,000 INR in 7 days
0.0
0.0

As an experienced and trusted developer with over 5 years of experience, I have built a solid reputation for delivering exceptional mobile applications. Your project for an Anonymous Voice Match App perfectly aligns with my skill set as I specialize in Android, iOS development and Mobile App Development. I'm proficient in both Kotlin and Flutter ensuring that we would be covered on the language aspect. To ensure stable, fast voice calls, I recommend leveraging a combination of WebRTC and Agora. My approach to building this app would include developing a small yet efficient backend service that handles the random queue and triggers the voice sessions seamlessly.
₹12,500 INR in 7 days
0.0
0.0

Hey! Having successfully completed over 80 projects in my 5+ years of professional experience, I am confident in my ability to deliver a top-notch solution for your Anonymous Voice Match App. My strengths in full-stack development and proficiency in mobile app development, particularly with Flutter and Android, make me more than capable of handling the technical components of your project. Additionally, my mastery of Node.js as your detailed backend technology choice gives me an edge in implementing the matching service you have in mind. Moreover, I have extensive exposure to building anonymous chat and talk platforms that will prove highly valuable for this unique project. My portfolio showcases similar works that resulted in high-quality voice calls like the ones you expect from the chosen VoIP stack. I focus on delivering clean architecture, efficient execution, and modern design which wholly aligns with your project's philosophy. To sum it all up, selecting me means you are choosing someone who not only possesses the necessary technical skills but also someone with a keen sense towards business growth. I ensure timely delivery, clear communication, optimal performance, and long-term success - all key aspects for this project. I am excited about transforming your unique idea into a smooth running app that facilitates meaningful connections between people!
₹25,000 INR in 25 days
0.0
0.0

The real challenge is creating a truly frictionless, anonymous voice connection that pairs strangers instantly without compromising call stability or user privacy. I will deliver a solution that nails sub-five-second matchmaking on divergent mobile networks while maintaining seamless call quality on average 4G, all via a minimal interface. I will build native Android and iOS apps using Flutter for efficient cross-platform delivery, integrate Agora Voice SDK for low-latency, high-quality WebRTC-based calls, and deploy a lightweight Node.js backend on scalable infrastructure to manage a real-time queue with atomic pairing logic. This guarantees reliable NAT traversal and no logging of user data. The final product includes intuitive UI elements and thorough documentation for straightforward maintenance or credential swapping. What’s your preferred cloud provider for hosting the backend service to ensure optimal scaling and latency?
₹33,750 INR in 14 days
0.0
0.0

Hey, How are you! I've carefully checked your requirements and really interested in this job. I'm a full stack Javascript 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, VueJS, Node JS, Python, html/css as well as javascript and jquery. Simply, I have rich experienced in Mobile App Development, iPhone, Android, VoIP, Node.js, Kotlin, iOS Development, WebRTC as you enumrated. 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. Regards Sincerely, Geo A.
₹12,500 INR in 90 days
0.0
0.0

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