The application for learning Russian Sign Language will allow you to learn the dactyl alphabet, signs, basic grammar and common phrases of the RSL in a playful way. In total, about 1,400 animated sings and their combinations are available for study, divided into 28 thematic lessons. Testing of the learned material is structured in the form of multiple-choice tests and is based on the method of spaced repetition, when signs are offered for repetition at certain intervals for better memorization.