Arbitrage Radar tracks eBay, Facebook Marketplace, Craigslist, Mercari and more — alerting you the moment a listing drops below its 30-day historic average.
Free forever plan · No credit card required · 7-day Pro trial
Stop refreshing marketplace tabs. Let the radar do the work.
Add products in plain English — 'PS5 Slim', 'Herman Miller Aeron', 'iPhone 15 Pro'. Set a max alerting price and exclusion words to filter noise.
Our AI extracts listings from 8+ marketplaces every 12 hours, builds a rolling 30-day price baseline, and computes the true market rate.
The moment a listing drops below your threshold vs. historic average, you get an email and in-app alert. Buy fast, resell for profit.
A clean feed of every tracked product with the current lowest price, historic median, and 30-day trend chart. Dismiss listings you don't want and the AI ignores them going forward.
We parse every listing intelligently — no brittle scrapers, no missed data.
Scans run at 08:00 and 20:00 UTC — you'll never miss a flash deal again.
30 days of price history per product — no fake 'was $999' inflated discounts.
Custom thresholds, exclusion words, dismissed listings — the radar learns your taste.
Deal alerts hit your inbox seconds after a scan finishes. No app-checking needed.
eBay, Facebook, Craigslist, Mercari, OfferUp, Poshmark, Etsy, Depop — unified.
"Snagged a Herman Miller Aeron for $275 below average on my second day. Flipped it in a week. This paid for itself instantly."
"I used to check FB Marketplace 20 times a day. Now I just wait for the alert. Made $2,400 last month on gaming consoles alone."
"The exclusion words feature is genius. No more 'for parts' listings clogging my alerts. Pure signal."
eBay, Facebook Marketplace, Craigslist, Mercari, OfferUp, Poshmark, Etsy, and Depop. You choose which ones to enable per watchlist.
Pro users get automated scans twice a day (08:00 and 20:00 UTC), plus unlimited manual re-scans. Free users get 1 automated scan per month and 2 manual re-scans.
We track every listing we've seen for the past 30 days and compute the median price, ignoring outliers and dismissed listings. That becomes your true market rate baseline.
No. The Free plan is genuinely free and requires no payment info. Pro comes with a 7-day free trial — cancel anytime before day 7 and you won't be charged.
Yes. Pro includes 20 tracked products; add extra slots for $0.60/mo each right on the pricing page.
No — we alert, you decide. Automated purchasing violates most marketplace TOS. We give you the edge; the buy click is yours.
Free forever plan. 7-day Pro trial. Cancel anytime. Start finding underpriced listings in the next 60 seconds.