Swish (Wishlist King)

The BEST wishlist app for Shopify. Developer is super responsive, helped us set up and customize for our shop, and after using for a few weeks now, very happy to report that it has all of the features we were looking for. Previously we had used Wishlist Plus, which automatically deletes items from customer wishlists after 3 months. That upset a lot of our customers when their lists went missing - so happy we aren't going to have that problem anymore!