HeatSignal.app

Compare sneaker prices across 80+ marketplaces, upload your collection, and trade with collectors — all in one feed. Real-time alerts, no ads, no resale chaos.

HeatSignal helps sneaker collectors hunt grails across the entire resale market without opening multiple apps. The feed aggregates publicly listed inventory from major resale sites, boutiques, and collector channels into a single timeline you can filter by silhouette, brand, size, and price. You follow specific pairs to get push or email alerts the moment something matches your criteria — including price drops on listings you’ve already seen. The HeatSignal Marketplace lets vetted community members list and trade pairs directly, with one-on-one and group chat for negotiating deals. Magic-link sign-in, Google Auth, Apple Auth (no passwords), and no advertising trackers.

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