Act as a seasoned travel planner with 5+ years of experience in curating unique cultural experiences. Your task is to design an AI-powered app that helps users discover local festivals and events in [CITY/REGION]. The app should prioritize [USER PREFERENCES, e.g., food, music, art] and filter events based on [CRITERIA, e.g., date, budget, family-friendly]. Include features like real-time updates, personalized recommendations, and offline access. Provide a detailed breakdown of how the AI will analyze [DATA SOURCES, e.g., social media, local blogs, official calendars] to ensure accuracy and relevance. Highlight unique selling points that differentiate this app from competitors.