The Phable app has been created to address chronic diseases in India by providing a robust system for treatment and diagnosis. The app, which uses MongoDB as its database, allows doctors to communicate more effectively with patients, track their progress, and provide personalized recommendations. With the rise of COVID-19, Phable's growth has accelerated, and it has released new features such as video consultations quickly. The company uses a MEAN/MERN stack with MongoDB Atlas for clustering and backup capabilities, which provides a secure and scalable solution for its growing user base.