However, as Venmo gained popularity among users, online business, online casinos included, started to offer this payment option. Venmo is a relatively new payment method that has been created primarily to facilitate peer-to-peer transfers between individual users. However, it has been gaining popularity in business circles lately, with many sites adding Venmo to their payment options, including some of the leading US online casinos. Venmo is a service payment provider that is used primarily for peer-to-peer personal transactions.