Do I need to renew my purchase every year?

Dear Colorlib,
I would like to purchase this( megapod ) template and use it without attribution for a commercial site.

Do I need to renew the purchase every year in order to stay attribution free? ( I don’t need support, just need to use it without attribution )
How does the purchase even validated on a site?
5 domains means… does subdomains too count?

Hi there

not necessary to take subscription, during the purchase make sure its not selected