🚀 Building Aura: How I Built a Real-Time Voice Connection App with Flutter, Firebase, and Agora

Finding someone to talk to when you need a listening ear shouldn't be complicated. That’s why I created Aura — a supportive platform designed to connect people with volunteer listeners in real time through secure, low-latency VoIP voice calls.

We just launched our landing page, and I'd love to get feedback from the developer community!

💡 What is Aura?

Aura is a mobile application built to foster genuine human connection. Whether someone is going through a tough moment or simply wants an empathetic conversation, Aura matches them with available volunteer listeners based on proximity, language, and real-time availability.

🛠️ The Tech Stack

To deliver a smooth, responsive cross-platform experience, I chose a modern stack:

• Frontend: Flutter & Dart (Single codebase for iOS and Android)
• Real-time Audio: Agora RTC SDK (High-reliability audio channels)
• Backend & Database: Firebase (Firestore, Cloud Functions)
• Auth: Firebase Authentication (Phone / SMS OTP)

🏗️ Architecture Highlights

1. Secure Token Generation for Calls
   To keep voice channels secure, Firebase Cloud Functions dynamically generate short-lived Agora channel tokens on demand, ensuring API keys are never exposed on the client side.

2. Live Listener Pool State
   Using Firestore real-time streams, the app maintains an active pool of available volunteers and filters connections efficiently using location parameters.

💬 I'd Love Your Feedback!

We are currently gauging interest and gathering early feedback before the full public rollout.

1. Visit the landing page:https://aura.aura-app-official-project.workers.dev/
2. Let me know what you think of the concept in the comments below!
3. If you've built real-time audio apps with Flutter and Agora, how did you handle background call states?

If you find this project interesting, feel free to drop a reaction! 💖