The best live betting app accepts bets fast and rarely suspends markets without reason. Speed decides whether a bettor gets the price on screen or a worse one.
Every in-play bet passes through a delay window. The sportsbook holds the request for several seconds and checks whether the price still stands. Short windows of two to four seconds feel natural. Windows of eight seconds or more lead to constant "odds changed" messages.
Editorial tests on NHL and NBA games showed a clear pattern. Apps with short delays also suspended markets less often after minor events. Apps with long delays tended to lock markets after every shot or free throw. Over a full game, that difference meant dozens of missed opportunities.
Market depth comes second. A strong live sport betting app keeps props and totals open during play, not just the moneyline.