What type of pricing plan options are there available?

ThemeIsle offers different packages you can purchase. 

Treasure Chest Lite and Treasure Chest offer the same number of themes. The difference between these 2 is the fact that Treasure Chest Lite clients offers 3 domains license, while Treasure Chest offers 5.

What does the use on 3 domains mean? The use of three domains refers to applying each license key of a theme or plugin to maximum three domains. Each theme or plugin comes with its own license key, which is different than the others’.

Diamond pack offers you access to only one theme (except Zerif Pro) and the theme can be installed on only one domain, receiving 12 months of updates and support.

Pirate Club package includes all our themes and plugins and the possibility to install the theme on unlimited domains, while the Pro plugins can be installed only on 1 website. Pirate Club includes lifetime updates and support which means that the user won't have to renew the pack.

Treasure Chest Lite and Treasure Chest will auto renew after their time of updates and support expire based on the subscription.  Why to renew the license, I though is for lifetime?

!important You can cancel the renewal whenever you want directly from your Themeisle account (Subscription section) or PayPal.