LearnDash is an LMS plugin for WordPress. You would have to buy the plugin and upload it to your WordPress website.
After buying the plugin, you will get a download link for the plugin. Download it in your local system.
- Now Navigate to wp-admin > Plugins > Add New.
- Click on Upload Plugin and Choose your downloaded file. Then click Install Now.
- Now click on Activate Plugin. The LearnDash will be installed and activated on your WordPress website.