Used GiftsForMy for our daughter’s birthday because her gift ideas were spread across Amazon, Etsy, Indigo, and a couple of smaller stores. It was much easier sending everyone one link instead of four different wishlists.
The best part was that family members didn’t need to create an account, and they could mark something as purchased without ruining the surprise for us. We didn’t end up with any duplicate gifts, which was honestly my main concern.
Adding products was straightforward, although I’d love a mobile app eventually since I did most of the setup from my phone. Overall, it’s a really useful alternative if you want a simple wishlist without being tied to Amazon.