Our story
Built by a gamer,
for gamers
I bought Elden Ring on Steam during a sale. Loaded it up, played the tutorial, felt something nagging at me. Checked my PlayStation library. It was there — I'd bought it on PS5 six months earlier and completely forgotten.
That $60 mistake is why VaultCheck exists.
I'm a developer who games across Steam, PlayStation, and whatever subscription services make sense at the time. Keeping track of what I own across all of them is genuinely hard. There's no single place to see your whole library. Sales create urgency that shuts down careful thinking. And once you've clicked buy, that money is gone.
VaultCheck is the tool I wished existed — a browser extension that checks your connected libraries in real time and tells you, at the moment of purchase, whether you already own something.
Our mission
We believe every purchase should be intentional. Not impulsive, not accidental, not driven by a countdown timer on a sale page. We're building tools that put information back in the hands of the buyer, at the exact moment it matters.
VaultCheck is a solo project, built in public. I share the process, the numbers, and the mistakes on the blog. If you're a gamer who's ever bought something twice, this is for you.
The extension is free. The free tier covers everything most gamers need. Premium exists to fund the infrastructure and keep the lights on — not to wall off core functionality.