The referral code (a.k.a. invite) is a unique URL for True Balance page in Google Play, and is generated only for your account.
You can find the invites from
- the message you share with your friends
- Drawer via "≡" (Drawer Menu) > "App Settings" > "My referral code"
- or "Earn" > Scroll down to the bottom of the page
Please share your “Referral Code” with your friends.