Ain-ul-Faqr is a book on Islamic Sufism, written by Hazrat Sultan Bahoo Rahmatullah alaeh, and developed by ITGenes. It is a great piece of writing that delves into the real spirit of Islam, exploring topics such as Faqr, Ishq, Love, Allah, Baa Hoo, Walayat, Wali, Muslim, Momin, and more.

The book is a masterpiece of prose writing that defines each aspect of the real Islamic spirit, detailing all the pros and cons of Sufism and Tasawwaf. It is a must-read for anyone who has a quest for self-awareness or God's awareness. The book is written in American English and is available for free on the Android platform under the Education & Reference category, specifically under the Books subcategory.