Different sportsbook apps will have different payment processors. Just about all of the online sportsbooks in Indiana and in other states accept Visa, Mastercard, bank transfers, ACH/e-check deposits, and many sports betting sites also offer Prepaid Plus cards that you can load in order to deposit money. If you want the full sports betting experience, you can deposit money at the retail sportsbook or at the cage for the casino. Otherwise, you can use a variety of different methods to sign up. Unlike the state of Iowa, where users have to sign up in person, you can sign up anywhere in the state of Indiana for DraftKings, Fanduel, or BetRivers and that will also be the case as other operators get going.