This app was mentioned in 14 comments, with an average of 1.79 upvotes
Here's helvetica neue it's ~~99¢~~ $2 but you can make that in play credit doing surveys in Google opinion rewards. This app will let you install various fonts too but its UI is rather annoying.
I am font obsessed and find it makes a real difference for my eyes.
I installed this Helvetica Neue - https://play.google.com/store/apps/details?id=com.monotype.android.font.helveticaneue&hl=en
and adjusted screen zoom to small and font size medium.
This is the font I'm using.. I just downloaded and installed from the Google app store. Been using it on my last few Galaxy phones.
Here you go: https://play.google.com/store/apps/details?id=com.monotype.android.font.helveticaneue
Install it then go to Settings - > Display > font > profit!
It's gotta be a flipfont example is this one.
Helvetica Neue
Here's the app
https://play.google.com/store/apps/details?id=com.monotype.android.font.helveticaneue
Or this
> Source Sans Pro