Five friends.
One free month of Plus.

Invite friends to Anubis. When 5 new friends sign up, confirm their email and log 3 practice papers each, your free month activates automatically. No purchase required.

Each new person counts once, after they confirm their email and log 3 practice papers. Existing accounts, self-referrals and extra addresses for the same inbox (like name+1@gmail.com) do not count. One reward per inviter. Your free month starts when the 5th referral is confirmed; it does not start a paid subscription or change an existing paid subscription.