Unlike Virtual Reality, AR does not replace real world with the virtual one. In AR Layers of digital information are added onto the physical world. Augmented reality as a technology appeared back in the 90s. But at that time it was used only by engineers and doctors. Today, augmented reality is presented in every smartphone. For example, on Instagram, it is represented by masks and filters in the story camera. The puppy filter superimposes a dog’s ears and nose over top of yo