Android Voice Chat Room

I want a dedicated Android application that lets people drop into live voice chat rooms, talk freely, and capture the moments that matter. The build is Android-only for now, so every design, library choice, and test scenario should focus on delivering clean performance across current Android devices.

Core scope
• Real-time voice chat rooms with smooth, low-latency audio.
• Social-media sign-in (Google, Facebook, X, etc.) as the sole onboarding method—no email/password screens.
• In-app voice recording so users can save parts of a conversation locally or push them to cloud storage.
• Basic user profile tied to the chosen social account.

What I’m looking for
Clean Kotlin or Java code, a solid audio stack (WebRTC, Agora, or an SDK you’re comfortable with), and a lightweight backend to manage room lists and user sessions. The authentication flow must follow each provider’s latest guidelines to avoid approval issues. I’m open to Firebase, Supabase, or a custom Node/Express backend—just outline why your pick fits best.

Deliverables
• Full Android Studio project with source code and build instructions
• Signed release APK ready for Play Store upload
• Brief setup document covering SDK keys, social auth configuration, and recording storage paths

Acceptance
Audio should stay in sync for at least 20 simultaneous users on a standard 4G connection, recordings must play back without clipping, and social login has to succeed on the first attempt for Google and one additional provider.

If you’ve shipped real-time audio apps before, share a short link or apk; otherwise, explain how you’ll tackle latency and security. Looking forward to working together.