Find any grail. Never overpay.

HeatSignal scans 250+ marketplaces and boutiques around the clock. Every site's ask for your size, side by side, cheapest first. The pair you found on StockX is often cheaper somewhere else. We show you both.

SAVE ON EVERY PAIR
• Every live ask in your size across 250+ sites, cheapest first.
• Market value from confirmed sales at your exact size and condition.
• Buy Under and Walk Away, so you know a fair price before you pay.
• See what you save against the lowest ask on StockX.

FIND THE PAIRS OTHER SITES CAN'T
The rarest pairs don't wait on the big apps. They show up at a consignment shop, a small boutique, an eBay listing or a Grailed closet. Lock in your size on any grail. The second one lists, you get a push and an email with the price against market value.

MEET HUNTER, YOUR SNEAKER AI
Ask in plain words. What a pair is worth in your size. Whether a listing is fair. What your collection is worth today. Send a photo and Hunter looks the pair up. Every answer comes from real sales and live asks. New members get Hunter free for 14 days. It stays on with Elite.

THE MARKET INDEX FOR YOUR COLLECTION
Add your pairs and see your whole shelf valued from confirmed sales on StockX, GOAT, eBay, KREAM, Grailed, Poshmark and more. Not two apps. The whole market, size by size and condition by condition. Log what you paid and see what you're up.

EVERY SALE, EVERY SIZE
Open any pair for its sales by source, the cheapest new pair in every size, and how long pairs sit before they sell.

BUY, SELL AND TRADE, PROTECTED
Deal with other collectors inside HeatSignal. Every protected pair is authenticated by LegitApp before it changes hands, and every deal ships with tracking under the Heat Guarantee. Prepaid labels at the best rate, powered by ShipEngine.

BUILT FOR YOUR PHONE
Scan a box label or snap a photo to pull up any pair. Add the Home Screen widget to see new matches in your size and the listings you're tracking.

Terms of Use: https://heatsignal.app/legal/terms
Privacy Policy: https://heatsignal.app/legal/privacy