The best alternatives to Buildiful Heart are Matching Donations, DonorSee, and Give a Pizza. If these 3 options don't work for you, we've listed a few more alternatives below.
Geenees is an app that allows users to connect with friends and family to purchase gifts for each other through Amazon. Each user can create a wish list for themselves or someone they know and their friends and family can secretly purchase the gifts from their wish lists.