The アルク英単語パス 単語レベル診断搭載 app by PLAYSQUARE INC. is a comprehensive English vocabulary app featuring popular content like "キクタン" and "究極の英単語." It offers a highly acclaimed "Word Level Diagnosis" feature allowing users to assess their vocabulary skills accurately in just five minutes.

With a plethora of smart features for efficient English vocabulary learning, this app includes a "Learning Progress Graph" for a quick overview of daily study progress, a "Review" feature for repeated learning of unfamiliar words, an "Integrated Word Search" function for searching all included words, a "Listen in Bulk" feature for learning during commutes, a "Today's Study" function for personalized learning pace, and "Example Sentence Audio" for each content not found in the book version. The app also introduces an enhanced "New Comprehensive Test" function with up to 14 different test combinations, including chapter and part of speech specifications, random question formats, example sentence tests, pronunciation-based tests, and automatic removal of learned words from the list.

This ultimate English vocabulary app incorporates 17 popular content pieces like "キクタン" and "究極の英単語," providing a complete collection of example texts and example sentence audios as of August 2022.