Online sport betting, also referred to by the name of sport booking, is the practice of placing bets on sporting events. Historically, bets on sporting events were made in relation to the outcome of the event. Despite this, PASPA has largely prevented betting on sports online and in person however Nevada has one exception. To place a bet you had to go to an operator of betting. Sports booking apps allow people to place bets using their mobile devices and also receive payments. Avengers Endgame function as a digital clearinghouse to receive bet calls as well as pay outs.