Abacus Mental Arithmetic has created an Android app called 주산N암산 기초1, which is a digital version of their paper textbook that teaches mental math. The app is designed to help anyone of any age learn mental math easily and develop their mathematical and cognitive abilities.

The app includes three introductory textbooks and covers addition and subtraction, flash mental math, multiplication, and division up to the 10th level. The app is free to download and use, and the first textbook is also available for free.

The app is easy to navigate, and users can select the parts they want to learn and slide left or right to turn the pages. The app includes an electronic abacus that users can manipulate with their fingers, just like a real abacus.

For questions about learning or franchise opportunities, users can contact the developer at 한빛에듀(주) by phone atorThey can also send an email to or visit the developer's office at 전남 순천시 연향번영1길 25호 1층.