Just as official propagandavideoIn the introduction, Just a Line is easy to use, users only need to start the app and then hold the phone and move to interact. The app can draw lines in the air. These lines are visible only on the screen of the mobile phone and can be seen by other users around the app.
Google official said that this app is still in the experimental stage, but anyone can download it for free. In addition, Google also introduced a new feature in this update: Graffiti with friends. According to the company, this function of Just a Line makes it the first AR application that enables two friends to create graffiti together using Android or iOS APP.