What do I get for inviting a friend?

Your friend gets 21 days of everything, free. Once they’ve practised on 3 days (20 answers a day) within 14 days, you get a streak freeze on the free plan, in your trial or as a lifetime member, or your next charge pushed back 14 days as a monthly or annual member. If they become a member, you get one more.

Rewards arrive the next morning, up to 10 a year. Free accounts never get membership for inviting. Every reward is checked, and an unused one can be taken back after a refund or a closed account.