Kuran-ı Kerim 4.Cüz is a free Quran application developed by BerkserSoft for Android devices. The app is designed to make reading and memorizing the Quran easier by dividing it into Juz (parts). Users can easily download and share the parts, and the app does not require an internet connection to read. The app has a user-friendly interface and does not contain any ads.

One of the app's standout features is its advanced media player that shows the duration of each page and allows users to go forward and backward. The app also allows users to start reading from any page and has a feature that synchronizes audio and page numbers. Additionally, the app does not access any private information on the user's device, making it safe to use.

However, users should be aware that the app does require an internet connection to download additional parts and that the battery may drain quickly if the app is left open for long periods. Overall, Kuran-ı Kerim 4.Cüz is a useful and practical app for those who wish to read and memorize the Quran on their Android devices.