Firstly what is typography - typography is the industry standard word and a fancy way of saying Font, Font Type, Font Family.
You have full control on what font you want to have in your app so you don't have to use the default font or even the same font as you used on your website…
Navigate to your Wordpress Admin - Buddyboss App - Branding - Typography
Here you can Import google fonts or upload fonts from your computer if you have purchased and downloaded a font pack from another site. You can change the font weight (size) and use different fonts for different areas of your app if you so wish!
How to add Custom Fonts in BuddyBoss App