Singer Hu Yanbin has unveiled his new fan community app, 'Yanhuo,' which is now in beta testing on Apple's TestFlight. The app, developed personally by Hu, offers features such as dynamic sharing, concert announcements, fan chat, and a virtual growth system. A standout feature is the 'Tour Map,' which tracks tour cities and mileage, unlocking achievements for users. Additionally, the app includes an AI assistant named 'Little Tiger,' with a character designed by Hu Yanbin himself.