How do I access the list of available add-ons?

Tap the button, then tap the Add-Ons option. Once the store loads, it will be divided into several sections:

1. Bundles: this section shows you items that have been grouped into a single purchase.
   
   
   
   
2. Single Items: this section shows you individual items that are available for purchase.
   
   
   
   
3. Purchase History: this section shows your purchase history.
   
   
   
   
4. Transactions: this section allows you to restore your previous purchases.