Грани Агни Йоги is a collection of 22 spiritual books by Boris Nikolayevich Abramov, the closest disciple of Nicholas Roerich. This Android app is developed by Prilaga.com and is available for free in the Education & Reference category. The books contain recordings of Abramov's teachings on spirituality, yoga, and meditation, and are ideal for daily reading.

The app's interface is simple and easy to navigate. Once downloaded, the entire collection is available offline, and you can read the books at your convenience. The app also allows you to bookmark pages and add notes for future reference. Each book contains a wealth of knowledge and insights that can be applied to daily life. Overall, Грани Агни Йоги is a great resource for those looking to deepen their spiritual understanding and practice.