As you complete Quests, you'll unlock the ability to invite your friends using your TivTag. Then, once your friend uses your invite code and activates a Tiv Pro membership, you'll automatically receive 500 points from the referral!
Here's how to redeem your friend's invite code:
Within the Tiv app, tap your avatar in the top-left corner
Tap the "Invite a Friend" button
In the top-right corner, select "Add Code"