are we allowed to use that application / launcher?

[kursatasdemir0]

hi,

i just find out that there is a thing exist i don't know yet if it is a launcher or a third party application or a edited version like OptiFine.

i just thinking this is not supposed to be legal. how fast people do hit we can literally hear it.

My ign: Kerschi14

Person who admits the thing he uses: ixzyu

please let me know if we allowed to use it.