Ive used these for family gifts before and honestly, sharing passwords is a huge risk anyway. Share-A-Cart is the main one people use. It generates a code so the other person just imports the list without needing your login. Heres how they stack up:

• Share-A-Cart: Pretty reliable on Chrome. It occasionally misses specific site coupons, but the item list is usually spot on.
• CartShare: The interface is a bit clunky for my taste, but it gets the job done if you are on a phone.
• EasyCartShare: This is a really decent option that syncs well across different browsers and handles the transfer quickly. If you are sticking to a $200 budget, just verify the prices after she imports. Sometimes prices shift or shipping isnt calculated right until the final checkout screen. Good luck with the surprise tho!

To add to the point above: I agree, never share logins. Over the years I've tried many tools but most feel sketchy tbh. I actually had an extension crash my whole browser once, which was a total nightmare. Share-A-Cart is safer because it uses local session data to move items. Quick tips:

• Use the ID code for privacy
• Use a Wish List if the app fails Quick reply while I have a sec.

Building on the earlier suggestion, I'm actually gonna disagree slightly on the extension front. I've been doing this for years and while those tools work well, you really have to be careful about what you're installing. I'm generally satisfied with the standard tools, but I've seen too many people install extensions that end up tracking every single move they make on Amazon. If you're on a $200 budget, the last thing you want is an extension messing with your checkout price or leaking your browsing history to advertisers. Its a common mistake to just click add to chrome without reading the fine print. Here is what I usually look out for:

• Permission bloat: Avoid anything asking to read and change data on every single site you visit.
• Performance lag: Some of these make the Amazon UI feel super sluggish or crash the tab.
• Privacy risks: Some tools stay active in the background even when you aren't shopping. I've found a handy tool for sharing carts to be a solid middle ground because it stays out of the way when you don't need it. Honestly, just being cautious is the best move here. I've had no complaints using a more minimalist approach lately. Just make sure your sister clears her cache after she pulls your items in... it helps prevent glitches when she goes to pay her half.

To add to the point above: I went through this same thing recently and honestly I'm so glad I didnt just give out my password. Being pretty cautious about my online security, I spent a while looking for something that felt safe and reliable. The setup I'm using now worked perfectly for a group gift we did last month. Basically, it just lets me send a link or a code and the other person sees the items without ever touching my account. No login sharing needed at all. It turns out you really dont need to risk your info just to collaborate on a shopping list. Everything went smooth and I'm super satisfied with how it kept my data private while still getting the job done. If you're nervous about it, just know that these tools can be really solid when you find the right one. Lemme know if you run into any trouble setting it up tho.

To add to the point above: I have been doing this for years and honestly Share-A-Cart is the only one that really sticks for me. Ive tried almost every alternative out there and most of them just dont handle the logic of Amazon variations very well. Here is why I prefer it over the competition:

• It handles coupons way better than the rest.
• No registration needed for the person receiving the cart.
• It works across different browsers if your sister uses Safari or something else. I am super satisfied with how it works and it has never messed with my account security or tracked my data in a weird way. CartShare is fine but it feels like it hasnt been updated in a decade tbh. Just stick to the main one and you will be good for that birthday budget.