Shenmo Abacus is a new interactive learning application based on Shenmo Abacus Mental Math course. With traditional instruction, students absorb and assimilate knowledge through textbook learning and teacher teachin and consolidate their skills by repeated training and exercises. Shenmo Abacus, however, fully utilizes the interactive capabilities of mobile devices, allowing students to study while having fun and increase the learning effectiveness so that they can pick up new skills every day.