Йога-нидра 2021 is an Android app designed to provide audio instructions that soothe the nervous system and alleviate mental and physical tension. The app includes 25 relaxation techniques from hypnotherapist and Йога-нидра instructor, Оксана Рогова. The updated version of the app allows users to select from 20 to 40-minute sessions, with or without music, and in sitting or lying positions. The app is free, and the most popular tracks include Йога-нидра базовая and Медитация на дыхание. It is important to note that the app includes demo versions of relaxations, which are only three minutes long and are not complete versions. The full versions of the relaxations can be purchased within the app and can be restored for free even after deletion. The app is not recommended for those with epilepsy or serious mental illnesses.