Astra is a free WordPress theme. Therefore, it can be installed and used like any other.
To install it on your site kindly follow the steps-
Login to your WordPress Dashboard.Go to Appearance > Themes > Add NewSearch for – AstraInstall AstraActivate it
Note: If you need the zip file of Astra theme, you can download it from the WordPress Repository here.
Looking for help to install the Astra Pro (Addon) Plugin? Read the article here.