At Pineappe Builder you have 2 options to choose your fonts:
choose one of the existing Fonts
or add your Custom Font for your website.
To choose one of the available Fonts - choose your Website and click on Fonts under Website Settings on the left:
To add your Custom Fonts follow the next steps:
Press on Design under your Website Click on Fonts on the left and choose your Custom Fonts from the list:
2. Click Save
Example: