Haru Science is an app that allows students to learn high school science concepts in just 10 minutes a day. The app's test papers are comprised of questions that assess the concepts students have learned, and over 10,000 questions are used to create the test papers. Each question assesses the student's understanding and memorization of a specific concept, and the app automatically generates questions based on the student's learning history. Not only does it offer the advantage of being a convenient system that can be completed in just 5 to 10 minutes a day, it's also the optimal strategy for covering conceptual gaps in integrated science, a subject that requires extensive conceptual study.