Kamus Jamak Taksir is a free Android application developed by RonDev Inc. It falls under the Education & Reference category and serves as a comprehensive Arabic language reference tool. The app is based on the book ABY, which is still widely used in several educational institutions in Indonesia, particularly in the Arabic Language Department of the State University of Malang.

The app contains approximately 675 singular forms of Arabic words and their respective plural forms. The plural forms are accompanied by example sentences to illustrate their usage. In addition, the app also includes material on jamak taksir, which is a type of plural in Arabic. Kamus Jamak Taksir is an alphabetical dictionary, and it is categorized as a bilingual dictionary due to its inclusion of both singular and plural forms of Arabic words.

The app is an essential tool for those learning the Arabic language, as it enables users to expand their vocabulary and understand the nuances of Arabic grammar. According to Hermawan (2014), the proper use of a dictionary is crucial in language learning, as it guides learners towards the correct usage of words and maintains the originality of the foreign language being studied. The app is a valuable resource for students, teachers, and anyone who wishes to improve their proficiency in the Arabic language.