Both parties receive cash bonuses when their referrals sign up using their referral code and complete a predetermined number of trips or drive a predetermined number of hours. By offering referrals & referees financiasatta king..l incentives, this program has proven successful in helping Uber grow its user base. Incentives for referring friends to sign up for Cash App and send money using the referral link are also provided by this profitable referral program. Both parties receive cash bonuses as an incentive when their referrals use the app to send money for the first time. Referring others to use Cash App is a popular way for users to earn extra cash.