Compare apples ..or rather wishlist services at wishsimply!
There is WishList service comparison at wishsimply https://wishsimply.com/blog/wishlist-service-comparison
Otherways check How WishSimply works by checking these videos:
http://www.youtube.com/c/Wishsimply https://www.youtube.com/watch?v=WFdzjseyOwI https://www.youtube.com/watch?v=UDTJqBhQ66E https://www.youtube.com/watch?v=X8NpWYf4Rnc