"زاد الخطيب المسلم" is an Android application developed by Alkateeb, which aims to help Muslim preachers find sermons that follow the moderate approach. The app provides a vast collection of textual sermons from reliable scholars and sheikhs of Ahl Sunnah Wal Jama'ah. These sermons are arranged systematically and categorized based on different topics, making it easier for users to find what they are looking for.

The app's user interface is simple and easy to navigate, and it is free of cost. The app's main feature is its extensive collection of sermons that are available offline, which is particularly useful for preachers who need to prepare their sermons while on the go. Overall, "زاد الخطيب المسلم" is a great resource for Muslim preachers looking for high-quality sermons that adhere to the moderate approach.