Soroban Drill is an educational app designed for iPhone users that offers a convenient way to practice soroban, the traditional Japanese abacus. Developed by Junichiro Komizo, this app is perfect for beginners who want to improve their soroban skills.

With Soroban Drill, users can easily practice various arithmetic operations such as addition, subtraction, and sums. The app also provides a specific focus on multiplication and division, allowing users to strengthen their skills in these areas. Additionally, there is a feature that offers mock soroban exams, providing a realistic test environment to assess one's progress.

The app is free to download and use, providing a great opportunity for beginners to get started with soroban. However, for those who want to unlock the full potential of the app, additional features like multiplication, division, and mock exams can be accessed through in-app payments.

Overall, Soroban Drill is a user-friendly and accessible app that offers a convenient way for soroban beginners to practice and improve their skills. Whether you're looking to enhance your arithmetic abilities or prepare for a soroban exam, this app is a valuable tool for anyone interested in mastering the traditional Japanese abacus.