The referral program offered by Airbnb is a well-liked choice that enables users to ask friends to sign up as hosts or guests. Travel credits are awarded to both parties upon the completionrummi ola of a qualifying reservation or the arrival of the first referral. By offering beneficial travel credits to both referrers and referees, this program has been successful in encouraging users to recommend Airbnb to others. Uber's referral program, which enables users to invite friends to register on the platform as drivers or riders, is another well-liked refer and earn app.