ספר המידות is an educational and reference book app available on the Android platform. Developed by לזכות עם ישראל, this app is a collection of articles on various dimensions and aspects of human life. The book is arranged alphabetically and divided into two parts: "Alphabet Old" and "Alphabet New." The first part was written during Rabbi Nachman's childhood, while the second part was written more recently.

The app offers features such as adjustable display size, screen rotation options, and the ability to remove vowel marks for devices that do not support them. It also includes a night mode with white text on a black background, which helps prevent eye strain and saves battery life.

ספר המידות is a free app and serves as a valuable resource for those interested in exploring different dimensions of life. Please note that the printed book is only a small fraction of the original manuscript written by Rabbi Nachman.