"WE PLAY" Social Audio Application Development

I am looking for a professional, experienced, and reliable mobile app developer to build my social audio application called WE PLAY for Android and iPhone. My project includes two different user interface designs, a boys' system with a premium black and gold theme, and a girls' system with a beautiful pink and purple theme. Both designs should have a modern, attractive, professional, and user-friendly interface. The application should include high-quality audio rooms, user profiles, profile pictures, microphone controls, host and moderator permissions, mute and unmute options, room management, text chat, virtual gifts, coins, VIP membership, badges, levels, games, a wallet and payment system, a reseller system, an agency center, a manager system, and an advanced admin panel. I also need a secure backend, database, user registration, login, notifications, and all essential features required for a fully functional social audio application. The app should work smoothly on both Android and iOS devices, including phones with slower internet connections. I want the application to be tested properly and delivered in a stable, production-ready condition. I am looking for a developer who has already built and launched similar audio room applications. Previous experience is very important to me. Before we agree on the project, I would like to see links to at least three previously completed audio room applications, a working demo or test link, screenshots, and a demonstration video. Please provide a detailed quotation, the total development cost, the estimated completion time in days, the development milestones, and the maintenance and support options. Please contact me with your portfolio, previous work, estimated budget, and development timeline.