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VaultCheck – Game Duplicate & Sub Checker

See if you already own a game, or it’s on your Game Pass or PS Plus, before you buy. Steam, PlayStation, Xbox, Nintendo & Epic.

Time on the storeUnder a yearA rough range, not an exact date

Store users13As shown on the Chrome Web Store

Chrome Web Store rating4.3 / 54 ratings on the Chrome Web Store

Last store update1 Aug 2026Version 1.0.6, 2 months ago

Inside the extension

Product image 1 of 4

Edward Goran3 months ago
Works great, only loses a star because it needs you to login to a lot of stuff. But I'm not sure how it would work without it to be fair...
Tony Duan3 months ago
As a multi-platform gamer, this is exactly what I’ve been looking for. I can’t tell you how many times I’ve bought a game on a Steam sale or a key reseller, only to realize I already owned it digitally on my PS5 or Switch. VaultCheck is quiet, non-intrusive, and just works. The overlay is clean and doesn't get in the way. I also love that it shows the "How Long to Beat" times right on the page—and watching my "savings tracker" go up is incredibly satisfying.
Classic Northern Designs3 months ago
Interesting concept - like Rocket Money for games. Delivers what it promises, easy import of games works across platforms. Hope to see duplicate check trigger at niche game sites as well.
Kinshuk Kaushik4 months ago
This is a useful extension and website especially with deluge of sales happening in summer and fall.

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Access levelMedium

Can follow every page you open.

What it’s allowed to do, not what it actually does. Not a safety rating.

Members also see when a new version asks for new access.

This is the only listing we know of from Vault Check LLC.

Combined users can count the same person more than once. Maker profile

Ext Watch AI

One research report for VaultCheck – Game Duplicate & Sub Checker. Reports come with Plus, Pro and Max.