Hello Kodular ,I just made a quiz app where i make some level like 1 to 10 level.when a user played a level user need to wait at least 10 min to play the same level again.yes I know their are lots of tutorial i watched them but not find my solution also try multiple time .thats why i post here i am also agree in paid help i can give you 5$ to fix this countdown system in my app
Send your AIA and an offer to me PM, and I will see if I can fix it for your price.
Dm me i will be fixed your aia