ProwlPRO . . .
Find the prey
Search 26 vintage marketplaces at once. Free.
Prowl by Owl & Twig is a free search tool for vintage collectors. Type a hunt or tap one of yours below, and it builds the same search for all 26 vintage marketplaces on one screen — open them one at a time, or all at once.
A look across your hunts: a find or two from each.
Field Guide on anything
Any maker, line or object. Marks, eras, prices, fakes, with sources.
Type any subject and Prowl researches a collector's field guide for it: how to recognize it, marks, eras, what it sells for, fakes and where to find it, with sources.
Testing Prowl? Tell me what is missing or broken. Say what you searched and which phone or computer you used.
Why not just Google it? Goodwill auctions and Facebook Marketplace aren't indexed. Prowl searches them directly.
The Vintage Vault →Prowl Alerts
New finds for your hunts, in your inbox. Only what you have not seen.
One email with new finds for your hunts on ShopGoodwill, eBay, Etsy, Chairish, Poshmark, Depop, Vinted and Grailed, only listings you have not seen. Every morning, three mornings a week, or just Mondays: you pick, and you pick which hunts go in. Free: 1 hunt, every Monday. Prowl Pro: your first month is free, then $7 a month for up to 25 hunts every day, your whole Den, a price ceiling, skip-words, local-pickup hunts near your ZIP, 25 photo checks a day and unlimited Fair price checks. We email you before the first charge. Cancel any time.
Try Prowl Pro free for a month
Or join the Owl & Twig list for news and new finds:
The occasional Owl & Twig note. Unsubscribe any time. The free Prowl stays free.
Prowl © 2026 Owl & Twig Vintage. All rights reserved. Some links to eBay earn Owl & Twig a small commission, at no cost to you.
How Prowl works
Prowl builds one search for 26 vintage marketplaces and puts them all on one screen. The basics:
Search everywhere at once
Type what you are hunting and tap Hunt. Every marketplace lands as a row; tap one to open it, or Open all (allow pop-ups for this site). Facebook USA runs the term in every big metro.
Your favorite hunts
Type into + add a hunt on the home screen. Prowl checks ShopGoodwill, eBay, Etsy, Chairish, Poshmark, Depop, Vinted and Grailed right away, with photos, and marks what is new since you last looked. The Den holds every hunt you have saved.
DAILY
DAILY in the footer runs all your locked hunts in one go, with live listings for each.
Prowl Alerts by email
One email each morning with new finds for your hunts. Free for 1 hunt, every Monday. Prowl Pro is free for the first month, then $7 a month for up to 25 hunts every day and your Den. Cancel any time. Set it up, see your plan and receipts, or turn emails off in Den › Settings. Tap Sign in or sign up to use your Owl & Twig account: we email you a 6-digit code, no password, and the same sign-in works on your phone and computer.
Get the app
Prowl works best installed. Tap Get the app, then on iPhone use Share › Add to Home Screen; on Android or a computer tap Install. It is also in Den › Settings.
Check a photo
At a sale, tap Photo in the bar at the bottom, then Take a photo. Two free checks a day, 15 with Prowl Pro. Prowl names the piece, notes visible flaws and gives a fair price range, with eBay look-alikes.
Make it yours
Aa makes the text bigger. The icon top-right cycles light, dark and uranium, a retro blacklight mode. Some eBay links earn Owl & Twig a small commission, at no cost to you.