漢検4級 - 漢字検定問題集 is the ultimate app for practicing and mastering the Kanji proficiency test level 4. This app offers a comprehensive collection of 4,617 questions covering 9 different areas, including reading, writing, radical, okurigana, antonyms/synonyms, homophones, typo correction, four-character idioms, and phrase composition.

In addition, the app features a list of all 313 Kanji characters that are included in the level 4 test. Users can select specific Kanji characters from the list and check their readings, stroke order, radicals, and associated idioms.

漢検4級 - 漢字検定問題集 is completely free to use, with all the Kanji problems and features available at no cost. However, the app does display advertisements, as it is supported by an ad network.

Please note that this app was developed by Trips LLC and not by the Japan Kanji Aptitude Testing Foundation. If you encounter any issues or have any feedback, please contact Trips LLC through the in-app contact form. "漢字検定" and "漢検" are registered trademarks of the Japan Kanji Aptitude Testing Foundation.