Making More Sense of Your Money. By cutting back on their regular expenses, users can extend their budget and increase their earnings by using Cash Boosts. Cash Boosts give users the chance to earn cash back666 slots on their transactions in addition to saving money on regular purchases. A portion of the purchase price may be returned to users in the form of cash back through certain Cash Boosts, which are deposited straight into their Cash App accounts. Obtaining Cash Back for Your Transactions. In addition to the savings they already receive from using Cash Boosts, users can earn extra money with this cash back feature.