Get feedback on a Vercel preview deploy → Every push gives you a fresh preview URL. Paste it into PinDrop, share the link, and your beta users click anywhere on the live page to drop anchored pins. No signup, no browser extension. They're commenting in the time it takes to open the tab. Get client sign-off on a staging URL → Send one link. Your client clicks through the staging site and pins exactly what they want changed, right on the page. No account to create, no tool to learn. The objection that kills most feedback tools never comes up. Collect beta tester feedback without signups → The fastest way to lose a beta tester is to ask them to create an account before they can tell you what's broken. PinDrop hands them a link. They click the page and pin. That's the whole ask.