Bitcoin is a major currency and it has seen major growth in the last two months alone, more than doubling in its price. This makes it very attractive and there are more and more people that are interested in the currency. Cash App is a application that allows you to transfer cash, and is said to possibly rival that of PayPal in the future. To increase its use, the users get to earn bitcoin back on their purchases when they use the Cash App. This is a great incentive. And with the recent controversy with PayPal and crypto it seems that this could be a great way for them to get ahead.