Flipfont is only available on Galaxy devices.
Monotype’s FlipFont™ changes the user interface font on your Samsung Galaxy phone.

Egg9Viewfinder™ Latin FlipFont
This handwriting is a unique handwriting written in cursive style.

Please check the following before you purchase:
Go to Settings->Display, and check if you see "Font" or “Font Style” in the menu.
If not, this means your device doesn’t support FlipFont.
Supported devices: Samsung Galaxy devices