Seconds vs Seconds Pro
Two products, same app. Once paid for, they're identical — but you can't switch between them after purchase.
Seconds (Free)
Free to download. Use every feature freely, with one restriction: each timer locks after you run it once. Unlock by buying the upgrade in-app — there's no limit on how many timers you can create. The upgrade is shareable via Family Sharing.
Seconds Pro (Paid)
A one-time paid download. No timer restrictions, and the purchase supports Family Sharing — buy once and share with the rest of the family.