Do Sparks expire?

On the Growth and Ultimate plans, your plan’s Sparks carry over and stay available for 12 months from the day they arrive, and on annual billing the whole year’s Sparks arrive at once. The Free plan’s 40 renew each month and don’t carry over, and the trial’s 40 don’t carry beyond the trial. Sparks you buy, the 10 every new account gets once, and Sparks itogai grants as a reward stay available until you use them or close your account. An action uses plan Sparks that expire soonest first, then gifted Sparks, then Sparks you bought. Sparks are never refunded or exchanged for money.