This article explores the top language learning apps for Japanese and determines which one is the most accurate. The importance of accuracy in language learning apps is discussed, and popular apps like Duolingo, Rosetta Stone, Babbel, Memrise, Pimsleur, FluentU, Busuu, Mango Languages, and Lingodeer are reviewed. After analyzing each app's strengths and weaknesses, Babbel is determined to be the most accurate Japanese learning app due to its focus on accuracy and targeted grammar lessons.