B-School Champion is an app that helps people prepare for admissions interviews at top business schools like Harvard, Wharton, and INSEAD. The app provides a platform for users to practice with hundreds of past questions, watch videos with advice, and view example answers. It simulates mock interviews by serving random interview questions and allowing users to time themselves while answering. Users can filter the type of questions they see and access "best practices" videos and example responses from past candidates. The app was built using Bubble, a no-code platform that offers powerful tools for building apps without extensive coding knowledge. Edward Easling, the founder of B-School Champion, chose Bubble due to its features and ease of use, which aligns with his background as a management consultant who values speed and efficiency in product development. The app has already gained some users and revenue, and Edward plans to experiment with different marketing strategies, including creating content around interviewing tips and best practices, to attract more users.