To add a product to the wishlist, simply tap the heart icon on a product card once. That action will save the product to the wishlist that is accessible using the wishlist icon in the menu or by going to “wishlist” in community. If you tap the heart icon on a product once, and then also tap the “add to styleboard” text you will get the option to add it as a stylepin to a styleboard. If you add it as a stylepin, it will also be added to the wishlist.

In summary: The wishlist only consists of products that are saved by tapping the heart icon on productcard once, but not added to specific styleboards as stylepins.