The ultimate Kanken Level 4 problem collection app! The questions are in 9 fields: "reading", "writing", "radicals", "okurigana", "antonyms/synonyms", "same sounds and different characters", "correction of typos", "four-letter idioms", and "composition of idioms"! Let's challenge all 4617 questions corresponding to the content of the Kanji Kentei Level 4 questions! In addition, it is equipped with a list display function for all 313 kanji that are subject to questions from the 4th grade of the