Karekök Mobil Kütüphane is an Android-based z-book application developed by FERNUS. It is a comprehensive library that can be accessed through mobile devices. This application provides access to various e-books, including textbooks, novels, and reference materials, making it an excellent tool for students and researchers.

The application has a user-friendly interface that makes navigation easy. The app's search feature allows users to find books quickly and efficiently. Additionally, the app provides a bookmarking feature that enables users to save their reading progress and continue from where they left off later.

Overall, Karekök Mobil Kütüphane is an excellent application for those who are looking for a comprehensive z-book library that can be accessed through their mobile devices. The app's user-friendly interface, search feature, and bookmarking feature make it an excellent tool for students and researchers alike.