Mo Style App is a fitness app with Flutter, Firebase, and Stripe offering guided programs. Features include secure Firebase Authentication with email verification, onboarding to gather user data (age, height, weight, goals), and a home screen displaying progress and subscription offers. Users access fitness levels (Beginner to Pro), free beginner trials, and Stripe-powered subscriptions. Embedded unlisted YouTube videos for exercise tutorials. Tracks progress with a week-by-week progress bar using Firestore. Settings include profile editing, account deletion, and more.