The Majmo’ al-Fatawa - Ibn Taymiyyah application contains the Encyclopedia of Fatwas by Sheikh al-Islam Ibn Taymiyyah in all its parts:
Volume One: Monotheism of Divinity
Volume Two: Unification of Divinity
Volume Three: The Outline of the Beliefs of the Salaf
Volume Four: Detailed Belief
Volume Five: Unification of Names and Attributes
Volume Six: Unification of Names and Attributes
Volume Seven: Faith
Volume Eight: Destiny,
Volume IX: Logic
Volume Ten: Behavioral Science
Volume Eleven: Sufism
Volume Twelve: The Qur’an is the Word of God
Volume Thirteen: Introduction to Interpretation
Volume Fourteen: Interpretation - from Surat Al-Fatihah to Surat Al-A'raf
Volume fifteen: Interpretation - from Surat Al-A'raf to Surat Al-Zumar
Volume Sixteen: Interpretation from Surat Al-Zumar to Surat Al-Ikhlas
Volume seventeen: Interpretation - from Surah Al-Ikhlas and Al-Mu'awwidhatain
Volume Eighteen: Hadith
Volume Nineteen: Principles of Jurisprudence - Followers,
Volume Twenty: Fundamentals of Jurisprudence - Doctrine
Volume Twenty-One: Jurisprudence - Purity
Volume Twenty-Two: Jurisprudence - Prayer
Volume Twenty-Three: Jurisprudence - From the prostration of forgetfulness to the prayer of those who have excuses
Volume Twenty-Four: Jurisprudence - From the prayer of those with excuses to zakat
Volume Twenty-Five: Jurisprudence - Zakat and Fasting
Volume Twenty-Six: Jurisprudence - Hajj
Volume Twenty-Seven: Jurisprudence - Visitation
Volume Twenty-Eight: Jurisprudence - Jihad
Volume Twenty-Nine: Jurisprudence - Sale
Volume Thirty: Reconciliation to Endowment
Volume Thirty-One: Waqf to Marriage
Volume Thirty-Two: Marriage
Volume Thirty-Three: Divorce
Volume Thirty-Four: Al-Dhihar to Fight the People of Oppression
Volume Thirty-Five: Fighting the people of transgression until approval
Volume Thirty-Six: General Indexes and Approximations
Volume Thirty-Seven: General Indexes and Approximations

In addition to many other books by Sheikh Al-Islam Ibn Taymiyyah:
Explanation of the middle doctrine
Text of the Central Doctrine
The destructive message
Slavery book
Response to logicians
And other books in this section in addition to the audio books section

The Majmu’ al-Fatawa by Ibn Taymiyyah application is a comprehensive reference for every researcher and interested in the sciences of religion and Islamic thought, as it provides an integrated educational experience that combines browsing and listening.