Why does this app where you have a staring contest with Salvador Dali exist?

Is this thing even funny? Is that the point? Since when is my phone capable of eyeball detection? Is there something wrong with my left eyeball, since the left eyeball reticle isn’t moving? Has my Bell’s palsy came back? Why afterwards am I shown a clandestine photo taken of me while I was looking stupidly at my phone? Why does the iPhone camera take hideous selfies? When was the last time I shaved?