I had seen an indie game that did this and, found it a very nice consideration. If you feline like adding in a font, its not too snappy looking and it can help some people read it.
I think a more practical solution would be to make the app inherit the text font set by the user in his/her device settings. However, some fonts could cause some strings not to display properly in the app.
Which is the only reason I’ve ever been able to come up with for why find time for readily available more often.
Sadly I actually couldn’t find much doe the fonts for my phone. The even locked the bootloader out and so a root isn’t even an option