We have adopted a mechanism that allows you to start learning with ease in 4 choices and continue full-scale learning without your knowledge. This is the smartphone (Android) version of the classic free software for Windows "English Word Learning Software P-Study System (PSS)". Words are attached to high school graduate level and university entrance exam level as standard. By downloading from within the app, you can add tens of thousands of words corresponding to Eiken, TOEIC, GRE, etc. ・