Russian version of the article is available here
You can place the Web App to your home screen and open it in one click.
It requires minimum storage space and provides quick access.
To add the Web App to your Home screen:
a. either tap on the “Add to Home screen” option at the top of the app page
b. or tap “Add” on the notification that appears in the middle of the app screen
Finalise by clicking “Install”.
Now the Web App icon is on your screen and the App can be opened by just a click!