شرح الأصول ثلاثة

This application contains audio and written lectures, explaining the Three Principles: a series of lessons delivered by His Eminence Sheikh Abd al-Razzaq bin Abdul Mohsen al-Abbad al-Badr - may God reward him - and the Three Principles and their evidence is a brief and precious treatise compiled by the renewed Imam Muhammad bin Abdul Wahhab - may God have mercy on him - containing the principles that must be followed. Man’s knowledge of it includes the servant’s knowledge of his Lord, the types of worship that God has commanded, the servant’s knowledge of his religion, the levels of religion, and the pillars of each level, knowledge of the Prophet - may God bless him and grant him peace - in a glimpse of his life, the wisdom of his mission, belief in resurrection and resurrection, and the two pillars of monotheism, which are disbelief. With juggernaut, and faith in God.
Explaining the issues of ignorance
https://play.google.com/store/apps/details?id=com.hussenapp.sharmesail

This application
It is an Android application that contains an important and useful book for all Muslims