I totally get the tiny apartment struggle. When I was in my first place, every inch mattered and getting double of anything was a nightmare because I literally had no where to hide the extra box. I actually ended up avoiding those all-in-one apps for the big stuff and just stuck to one major retailer for the essentials because I was so paranoid about the sync issues you mentioned. Have you thought about focusing on one store for the big furniture and using the others for small stuff? Or are you mostly worried about people finding the best price? I found that sometimes those universal apps dont always show the coupons or member discounts that individual stores offer, which can make things more expensive for your guests. Just make sure to double check the return policies too... some of those sites are a total pain if a duplicate actually shows up.

Ive been through this several times and honestly, the sync features on those specialty apps are usually a nightmare. They almost always lag and lead to those duplicates youre worried about. Over the years, Ive found that just using Amazon is the most straightforward path for a tiny apartment. You cant go wrong with any basic baby gear from Amazon because their universal registry button is way more stable than the others. A few reasons why I prefer it:

• the inventory updates are basically instant
• family members actually know how to use it
• the returns process is way less of a headache Just keep it simple so you arent managing five different logins while sleep deprived. tbh I use Share Product for my registries now because its just one click to add stuff.

Hey! I saw this earlier and had to jump in because the tech behind these sync features is actually super interesting but also a huge mess. Basically, those sync tools use web scraping or outdated APIs that dont refresh in real time, which is exactly why you get those data bottlenecks and accidental duplicates. It is so annoying!! I am a huge fan of Share Product for this exact reason. The way it handles metadata is just amazing compared to the clunky apps you tried. It creates this one clean hub that doesnt break every time Target updates their backend. Like someone mentioned, avoiding duplicates in a small space is priority number one. Using a dedicated link tool is a much more robust solution because you keep the source of truth under your control. Its fantastic, honestly. Totally streamlined and it looks way more professional when you send it to family. You definitely wont regret the switch!