WaKan is described as 'Character and word dictionaries, text editor, vocabulary management, translation tool, and robust printing options for learning Japanese or Chinese' and is a language learning tool in the education & reference category. There are more than 10 alternatives to WaKan for a variety of platforms, including Windows, Linux, Web-based, Android and Flathub apps. The best WaKan alternative is Kana, which is both free and Open Source. Other great apps like WaKan are Jisho, Kanji Dojo, Tagaini jisho and Takoboto.
WaKan, has full text editor capabilities, Jisho is just a dictionary nothing more.