Pirkei Avot, also known as "Ethics of the Fathers" or "Chapters of Fundamental Principles," is a program that compiles ethical teachings and maxims of the Rabbis during the Mishnaic period. Developed by OKtm Websites, this education and reference program falls under the books subcategory and is available for free with ads on Android 1.6 and up.

The program includes commentary on the Mishnah by the Ra'V, also known as the Bartenura, and Tosafot Yom Tov. It offers many features such as the ability to change text appearance, full Hebrew and English menus, a convenient context menu that can be disabled, full-screen option, pinch and zoom option, no internet connection required, supports all screen sizes, supports rooted devices or Hebrew System (Israeli cell phones), and installs on SD card to save space.