How I Built a Voice Chat App Using Anonymous Matching and Real-Time WebSockets

`# How I Built a Voice Chat App Using Anonymous Matching and Real-Time WebSockets

Recently, I worked on a voice-based chat application where users can talk to random strangers — anonymously and in real-time.

The concept was inspired by apps like Aloo – Anonymous Voice Chat, which focus on voice-first dating and communication.

In this post, I’ll walk you through the stack, challenges, and architectural decisions.

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🛠️ Stack Overview

• Frontend: React Native + Expo
• Voice Communication: Agora SDK
• Backend: Node.js + WebSocket server
• Database: Firebase / MongoDB (depends on scaling needs)
• Matching Logic: Real-time rooms with timed sessions

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🎙️ Why Voice-First?

Unlike traditional text chats or camera-based interactions, voice gives users emotional bandwidth, privacy, and instant connection — especially important for dating or random conversations.

Apps like Aloo prove that voice-first UX works surprisingly well for mobile-native Gen Z users.

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🔄 Real-Time Matching via WebSockets

I implemented a simple pub/sub system:

js
// Pseudo-code
socket.on('join_pool', (nickname) => {
matchUserWithRandomPeer(nickname);
});

When both peers agree to connect, the Agora token is generated server-side, and they’re joined into a secure audio channel.

🔒 Anonymous & Secure
A key takeaway from Aloo is privacy-first UX:

No camera

No email/login required

Just a nickname

Optional: Token economy for features like “extend”, “skip”, “friend”

That simplicity, paired with real-time voice, keeps it lightweight and engaging.

📌 Features You Can Add
Gender/language filters

Passive reporting & moderation

Token-based monetization

Invisible queues or “priority” boost system

Apps like Aloo do this cleanly with a beautiful black/white UI:
👉 https://alovoicechat.com

🚀 What’s Next?
If you’re building a real-time voice experience, I’d highly recommend:

Integrating Agora for scalable audio infra

Managing users via Firebase or Supabase

Keeping UX minimal, fast, and privacy-driven

💡 Final Thoughts
We’re entering a post-camera era of social interaction. Voice is making a comeback — and platforms like Aloo are leading the way.

Want to try how it feels to talk with strangers anonymously?

👉 Explore Aloo Now

Let me know if you want a full breakdown of the source code in a future post!

Published by Jonas Erlin – Indie Dev, UI/UX fan, voice-tech enthusiast

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