نهج البلاغة (Nahj Al-Balagha) is a free Android application developed by DreamBIG that contains a comprehensive collection of the sayings, sermons, letters, and aphorisms of Imam Ali ibn Abi Talib, the cousin and son-in-law of the Islamic prophet Muhammad. The application also includes some of the most significant Islamic rules and principles.

The app has a user-friendly interface that allows you to easily navigate through the content. It provides various features such as the ability to change the theme, zoom in and out of the text, copy and paste the text, and view the meanings of words by lifting the window. The app also has a tab that divides some of the sermons and speeches into sections in the same interface.

It's worth noting that the sermon section may not work on Android 2.2 and below. If you encounter any errors or issues, please contact the developer.

Overall, نهج البلاغة is an excellent application for those who want to learn more about Islam and Imam Ali's teachings. It's also a great opportunity for Muslims to share the reward of this app with others by gifting the paid version.