Juz Amma is an Android app developed by the WALi studio, also known for their other apps Al Quran application, MyQuran, and Muslim Daily. This app is designed for users who want to focus on reading the 30th Juz in Al Quran. It uses Arabic letter, translation, and audio reciter to help users read Al Quran.

With Juz Amma, users can easily navigate through the 37 surahs in the 30th Juz and listen to the recitation of the verses. The app also provides the translation of the verses in English for better understanding. The audio reciter's voice is clear and easy to understand.

Overall, Juz Amma is a useful app for those who want to focus on reading the 30th Juz in Al Quran. It is user-friendly and provides helpful features such as audio reciter and translation. It is a free app and can be downloaded from the Google Play Store.