Why I can't install fonts in my samsung device?

ഫോണിൽ ഇങ്ങനെ ഒരു ഓപ്ഷൻ കണ്ട്‌. ഇത് എന്തിനുള്ളതാണ്??

Dear Community, I am new here. I have a doubt about samsungs customization app GoodLock. Why its not available in UAE? I have seen many videos in YouTube about this app, but its not available in play store or galaxy apps. How can I get this app? I ha...