Hey guys, I dont know how to even ask google this question. I've tried and can't find an answer. Is there an app where I can send out a link or something to my friends when I'm planning a home tournament and they can "register" for the tournament. No payment required....basically just an RSVP.....I send out the text in our group chat and everyone replies back "I dont know yet" or "maybe I can, count me as a 90%", or my LEAST favorite question, "How many do you have so far? I'm only playing if we get a minimum of ___". I just want an app or website where they can "RSVP" (Register) to it and it will show that there are X amount of players registered.