The GCash referral program allows users to earn rewards by inviting friends to sign up for the app. When someone signs up using your referral code and completes their first transaction, both you and your friend can receive cash bonuses or discounts. The rewards can vary, so it's best to check the latest terms on the GCash app or their official website for updates. Make sure to invite friends who are new to GCash to ensure you both get rewarded. Always refer to GCash's guidelines to maximise your benefits!