You’re probably overpaying for everything you buy online. Not because you’re careless, but because it’s impossible to check every site.

The same product can vary 10–30% across retailers.

The internet made shopping convenient. It never made it optimal.

That’s why I built Rectangle. An AI shopping agent and researcher for tech & electronics: - Ask anything about a product. - Compare across hundreds of retailers. - Add everything to one cart and check out once. - Automatically track your warranties

No tab hopping. No guesswork. No multiple carts. No multiple checkouts.

I'd love for you to try it out for funzies or try buying a couple things you want, would love some feedback.

rectangle.so