"Font" app is possible to install any font in TrueTypeFont (.ttf), OpenTypeFont (.otf), TruType Collection (.ttc) format on your iPad.
The installed fonts can be used the other apps like Keynote, Word, PowerPoint, Pages and many more.
Some fonts are included in the app, so you dont need to prepare your own fonts.
If you dont like the included fonts, please prepare your own fonts.
By dragging and dropping the font file from the "Files" app and importing it into the "Font" app, you can install it on your iPad.