All of our premium add-ons come with the initial 1 year of Subscription i.e. you can download the updates till 1 year of purchase date. But after one year, you will need to renew your subscription in order to continue downloading updates.
For the renewing process, you have to simply buy the new product(addon) and use the license that you get from the new purchase.
But this subscription has nothing to do with the usages of the addons to your site. You can use it in your site as long as you want it without renewing your subscription. The only thing is you don’t get the latest update of the addons.
Note: All of our add-ons are sale through the “Theme Palace” so the terms and conditions for the license are followed according to the  Theme Palace.