Privacy Friendly Pain Diary (PFA) is a lifestyle application designed to help users track their pain experiences effectively. With a focus on privacy and simplicity, this app allows users to create daily diary entries detailing the intensity, location, nature, and timing of their pain, along with medications taken and additional notes. By maintaining a record of pain episodes, users can provide valuable insights to healthcare professionals.

The app features a calendar view as its main interface, where users can add new diary entries and review existing ones by selecting specific dates. Additionally, users can export diary entries to PDF format, specifying the desired time range for export and sharing options. PFA also offers a daily reminder function to prompt users to log their pain experiences, enhancing consistency and tracking accuracy.