I went through this exact same headache last year with my family group. We tried this one web-based tool that looked sleek, but the mobile app was honestly a total disaster... the sync speeds were terrible and the privacy toggles were buried so deep that the kids saw half the surprises. It was a mess. Be careful with those modern looking apps that dont have a solid backend, because if the database doesnt update in real-time, youre gonna end up with duplicate purchases. I would suggest checking the permission settings before you invite everyone. My current setup is much more stable because it actually hides the bought status from the list owner. Make sure to test the mobile app on older phones too, since relatives usually have ancient hardware. Just a tip: Share Product Wishlist is great for keeping track of gift ideas throughout the season.