GrailHound: Marketplace Alerts
One feed, 50+ marketplaces
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Put the hunt on autopilot
GrailHound scans eBay, Facebook Marketplace, Mercari, Vinted, Grailed and dozens more resale marketplaces around the clock, so you don't have to. We alert you when a new listing matches your search: on your phone, your browser or via email. Your first tracker is free.
GLOBAL COVERAGE
eBay · Facebook Marketplace · Craigslist · Mercari · Vinted · Grailed · Depop · Poshmark · OfferUp · Whatnot · Kijiji · Mercado Libre · Kleinanzeigen · Leboncoin · Wallapop · Marktplaats · Gumtree · Subito · Tradera · Willhaben · OLX · Yahoo Auctions Japan · Mercari Japan · Rakuten · Rakuma · Carousell · Tokopedia · Bunjang and more, across five continents.
HOW IT WORKS
1. Tell us what you're after: a keyword ("jordan 4 white cement", "canon ae-1", "vintage carhartt jacket") and pick your marketplaces.
2. We scan around the clock.
3. We deliver the listings to you: phone notifications, email, or save them in the in-app feed.
ONE FEED, 50+ MARKETPLACES
Matches from all your trackers land in one feed instead of twelve open tabs. A saved search on eBay only covers eBay; GrailHound runs your search across every marketplace at once.
ALERTS WORTH OPENING
Set a price cap and listings over your budget never reach you. Block words like "broken" or "for parts". For anything more specific, describe it in your own words ("original 2002 release only, no reissues") and the AI filters every listing for you.
LOCAL DEALS
Facebook Marketplace, OfferUp, Craigslist and more. We have your local deals covered.
BUILT FOR YOUR HUNT
Catch eBay auctions and Whatnot drops while the bidding is still quiet. Be first to underpriced listings on Mercari, OfferUp and Depop. Track Vinted, Grailed, Poshmark and Kleinanzeigen for vintage clothing, designer resale, thrift and secondhand finds.
MAINSTREAM TO NICHE
Furniture, car parts, cameras, kids' gear, tools, sneakers, trading cards, watches, vinyl records, vintage clothing, LEGO, games, advertising, memorabilia. If you can name it, you can track it with GrailHound.
FREE TO START
Your first tracker is on us. Set it up in under a minute, no trial subscription or card required.
Starter and Pro plans add faster scans, more trackers, and more marketplaces per tracker.
SUBSCRIPTIONS
Starter and Pro are auto-renewable subscriptions billed to your Apple ID at the price shown in the app. Your subscription renews automatically unless you turn off auto-renew at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Privacy Policy: https://grailhound.app/privacy
Terms of Use (EULA): https://grailhound.app/terms
Put the hunt on autopilot.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Tracker refinement tool: label hits as Relevant or Not relevant to help us refine your search and suggest relevant keyword exclusions. His can be labelled from the feed or the individual hit details screen.
You can now block and mute sellers to filter out their listings.
The developer, GrailHound, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SentoWeb Srl
- Size
- 68.5 MB
- Category
- Shopping
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- GrailHound Starter $5.99
- GrailHound Pro $14.99
- Turbo 14 Days $4.99
- Turbo 7 Days $2.99
- Turbo 24 Hours $0.99
- Copyright
- © 2026 GrailHound