I made this app based on the concept that "what controls the words controls the English".

Grammar and listening are also required in high school entrance examinations, but there is no doubt that knowing words is advantageous.
In other words, it is not an exaggeration to say that the word ability = English ability.

This app contains 1600 words that are frequently used in high school entrance exams according to their level.
Study->Confirmation Test->Study->Confirmation Test->Study->Confirmation Test.
Repeat this cycle to deepen your understanding.