What happens to the tokens I don't use?

Tokens don't expire, but plan tokens don't pile up. At each renewal, once the payment is confirmed, your plan's tokens go back to your plan's amount: whatever you didn't use that month doesn't carry over.

Extra tokens —the ones you buy, referral tokens and tokens the team gives you— are kept apart: your plan's tokens are used first, and the extras you have left are still there after the renewal. In Settings you see your subscription tokens and your extra tokens separately. For example, on the Basic plan (500 tokens): if you have 100 plan tokens left and buy 500 extra tokens, after the renewal you have 500 from the plan plus your 500 extra. If you cancel your plan, you keep your balance. The 60 free-trial tokens don't expire either.