People in your ReferralMagic account represent referrers and/or invitees. They are your users and customers tracked by ReferralMagic to be rewarded for referring (referrers) and signing up via referrals (invitees).
Referrer
A person becomes a referrer when he/she refers your app to his/her friends or colleagues.
Invitee
A person becomes an invitee when he/she visits and takes action on your app via a referral.