Honestly, my family went through the exact same struggle a couple years back and the spreadsheet route was a total nightmare lol. We thought it would be simple for my nan but she kept accidentally deleting cells and nobody ever remembered to mark things as claimed so we still ended up with triple sets of LEGO. Total chaos. I am really happy with how we do it now tho. We basically use a dedicated wishlist tool that sends notifications. For the older folks who struggle with new apps, I found that setting up the Amazon Wishlist Chrome Extension on their computer was the real game changer. It just lives in their browser so they dont have to log into some complex portal every time they see something nice. They just click one button and its added. It took like ten minutes to show my mom how to use it and now she is actually faster at updating her list than I am. No more duplicate gifts and no more boring spreadsheets that nobody looks at after two days. It has been way less of a headache for everyone involved and honestly saved our last few holidays. If your mom can handle an iPad, she can definitely handle a simple button like that.

TL;DR: Giftster. We're satisfied with it because its free and simple for non-techy folks. No complaints. Try Share Product; it's a browser extension that lets you build lists in like one click.

Re: "TL;DR: Giftster. We're satisfied with it because its..."

• Spot on! Giftster is amazing but be careful about people browsing different sites then forgetting to update the main list. Its a huge headache. I love using the Amazon Wishlist Chrome Extension to keep everything organized for free. Just watch out for international shipping costs tho, they can totally blow your budget if you arent paying attention...