Text me??

So there is an app (I might be a bit late) but its called Kik and it is like texting but instead of having a phone number, you have a username so instead of me giving my number out to the entire world (which I wouldn't do) I can just give you my user name BTW it works for android, apple, and anything with apps...I think
Soooo my username is: lexilou5683

Love,
Lexi