I have an existing Xcode-based voice-chat app that needs a final round of feature completion before it can clear App Store review. The core work falls into three areas: • Audio quality. Integrate reliable noise reduction, echo cancellation, and true HD audio so conversations stay clear even in poor network or loud environments. • User interaction. Build smooth in-app private messaging and scalable multi-user group chat on top of the current architecture, keeping UI consistent with the rest of the app. • Back-end dashboard. Add a lightweight admin panel that lets me monitor rooms, block abusive users, and pull basic usage stats. Once those pieces are in place, I’ll need you to handle the full release workflow: prepare provisioning, pass TestFlight, resolve any Apple rejections, and get the final binary live on the App Store. You’ll be working with the existing Swift codebase, Firebase for auth, and Agora SDK for real-time audio. Clean, well-commented commits and a brief hand-off document are all that’s required beyond the updated source. If you’ve shipped similar social audio apps before, I’d love to see an example.