gengo.app is described as 'Gengo is a manga, light novel reader with an integrated OCR Dictionary and tools, designed for effective Japanese learning. The project drew strong inspiration from AJATT and other immersive language learning methods, as well as the 'Kaku' android app, which lacked a' and is an website in the news & books category. There are more than 10 alternatives to gengo.app, not only websites but also apps for a variety of platforms, including Android, Windows, Linux and Google Chrome apps. The best gengo.app alternative is Kanji Dojo, which is both free and Open Source. Other great sites and apps similar to gengo.app are Yomichan, Kakugo, Yomitan and Kanshudo.