일본어 상용한자 위젯 is an educational app developed by JaeHwan Kim. It includes a total of 2,141 kanji characters, consisting of the 1,945 characters specified by the Japanese Ministry of Education, Culture, Sports, Science and Technology, and an additional 196 characters. The app organizes the kanji characters according to the latest trends, categorizing them into N1, N2, N3, N4, and N5 levels.

The app features a widget that can be placed on the home screen to help users familiarize themselves with Japanese kanji. The widget displays the kanji characters in random order. The app also provides various widget sizes for different learning purposes, including 1x1, 2x1, 2x1 quiz widget, and 4x1. Users can easily navigate to the next word by placing one widget on the thumb and using the other widget for interaction.

In addition to the widget feature, the app offers other functionalities such as detailed word search through Naver, bookmarking of words starting from the point of app closure, and a search function for word lists.

Please note that the app is available for free on the Android platform.