Zeka Küpü Mobil Kütüphane is a free mobile application designed by FERNUS for Android devices. It offers a vast collection of z-books that can be accessed from anywhere, at any time. This education and reference app is specifically designed to provide brain training exercises and other educational materials to its users.

The interface of the app is user-friendly, and the app is easy to navigate. The app's library has a wide range of z-books, covering various topics such as science, history, and literature. The app also provides a search bar that allows users to search for specific books or topics. One of the most significant features of the app is that it allows users to download books, which can be accessed offline.

Overall, Zeka Küpü Mobil Kütüphane is an excellent app for anyone looking to improve their knowledge and cognitive abilities. Its vast collection of z-books, user-friendly interface, and offline access make it a must-have app for anyone who loves reading and learning.