Cash App introduced a referral program to attract many users to the platform. In the program, a user will be able to earn money just by referring Cash App to anyone they know. You can refer the cash app to a friend or family member to get money. The user with whom you share the referral code needs to link a bank or debit card and then make a $5 transaction to anyone. By following all these, you would get $10. Thus, Get $15 on Cash App through the cash app referral program.