究極の計算 is an educational app developed by KOYU Inc. that focuses on improving calculation skills through puzzle-based problem solving. The app is the result of the collaboration between a team of educational app developers with over a million users and Wonder Lab, known for their expertise in creating educational materials.

The app categorizes different calculation techniques into seven "strategies" based on their nature. As users progress through the app, these strategies are gradually introduced and integrated into the puzzle-like problem format. This approach not only enhances calculation skills but also makes the learning process enjoyable and engaging.

The importance of calculation skills is emphasized in the app. By employing these strategies, users can reduce calculation errors and save time. The app also cultivates a mindset of actively seeking creative solutions, enabling users to apply these strategies in various scenarios.

The ultimate goal of 究極の計算 is to provide a comprehensive learning experience that goes beyond mere repetition and formula memorization. It aims to instill a sense of enjoyment in problem-solving and foster mathematical thinking. Whether preparing for middle school entrance exams or simply seeking to improve calculation skills, this app offers a valuable resource for learners of all levels.

To get started, users can select a problem from the problem selection screen and solve it by choosing the appropriate strategy from the available options. With each solved problem, the next one becomes accessible.

Please note that the app's terms of service and privacy policy can be found on the developer's website.