Is 750 Cash App Real? Cash app 750 is from rewardZoneUSA but that does not mean that the Cash app has anything to do with it. The Cash app has not released any statement regarding this offer yet. Being a Cash user, you must be aware of some facts such as the Cash app does not have buyer’s protection, it does not ask you for personal information, it does not pay you free money, etc. Get more updates and comprehensive knowledge on the Cash app through a given link.