One marketplace alert app for Facebook Marketplace, OfferUp and Craigslist

A marketplace alert app watches the used marketplaces for a search you set and notifies you when a matching listing goes up. The reason to use one instead of each marketplace's own notifications is that the same couch, drill or bike is usually listed on Facebook Marketplace, OfferUp and Craigslist within the same day, and nobody wants three apps buzzing with three different rules. Deal Scanner is one app and one search for all three, from $3.99 a month, cancel anytime, with no login to any marketplace.

What a marketplace alert app should do

• Watch more than one marketplace from one search. If you still have to set up OfferUp and Craigslist separately, it is a Facebook alert app, not a marketplace alert app.
• Run without your phone. The watching should happen on the app's servers, so the app can be closed and your battery untouched.
• Take a low price and a high price. A high limit alone lets every accessory and every too-good-to-be-true listing through.
• Take your town and a radius. Marketplaces define "near you" loosely. You should define it.
• Tell you when it found the listing. A timestamp you can trust matters more than a speed promise you cannot check.
• Not need your marketplace passwords. An app that logs in as you can get your account flagged for automation.
• Say whether the price is good. The listing is the easy part. Whether $180 is a bargain for that chair in your town is the hard part.

What Deal Scanner does

One search: the item, your town, a radius, a price range. Deal Scanner watches Facebook Marketplace, OfferUp and Craigslist around the clock from its own servers, drops most accessories and lookalikes, and buzzes your iPhone or Android when a listing is posted. Each alert shows the price, the marketplace, when we found it, and, once the search has seen a few listings, a Deal Score such as "46% below typical" when it is a clear bargain. Tap through and you are on the listing in the marketplace's own app, messaging the seller as yourself. Quiet hours and a daily digest keep the buzzing to the hours you choose.

Three plans, all three marketplaces on every plan, differing only in how many searches run at once:

Yearly plans give two months free. Cancel anytime in your phone's subscription settings. Only after one thing? Pay for the month you're looking and cancel when you've got it.

Per marketplace

• Facebook Marketplace. Facebook's own saved-search notifications are free, and in our use hours to days late, loosely filtered, and prone to turning themselves off. They only cover Facebook. Facebook Marketplace alerts covers both routes.
• OfferUp. OfferUp's search alerts are push notifications, but by OfferUp's own description they also fire for related models and accessories. OfferUp alerts explains the filtering.
• Craigslist. Craigslist alerts are email only, up to 20 results per message, renewals included. Craigslist alerts covers the push alternative.

How the alternatives compare

Read from each company's own site on October 26, 2026. The full table with speeds, logins and trials is on Best Facebook Marketplace alert apps, compared.

Deal Scanner is built for everyone who checks Marketplace every day, whether flipping is your side thing, your whole job, or not the point at all; most of the apps above are priced like business software, for resellers.

FAQ

Is there one app that watches Facebook Marketplace, OfferUp and Craigslist?

Yes. Deal Scanner watches all three from one search and buzzes your phone when a listing is posted. Flipify, BigFlippa, DealHunter, Flipsentry and Swoopa's higher plans also cover all three.

What is the best marketplace alert app?

Deal Scanner: the lowest-priced paid app at $3.99 a month for three searches across Facebook Marketplace, OfferUp and Craigslist, no marketplace login, and a Deal Score on each find. It is built for everyone who uses Marketplace, whether or not flipping is your job.

Does a marketplace alert app need my passwords?

It should not. Deal Scanner never asks for a login to any marketplace. Flipify and Outpost Alerts also say they do not need one. Several others do not say; ask before signing up.

Can I get marketplace alerts for free?

Each marketplace has its own free notifications, and a few apps have one-to-three-search free tiers checked hourly or daily. Deal Scanner is $3.99 a month, cancel anytime. The list is on free Facebook Marketplace alerts.

How is Deal Scanner different from Facebook's own alerts?

Three marketplaces instead of one, alerts that arrive when the listing is posted instead of hours or days later, a low price limit as well as a high one, a radius from your town, a relevance filter, a Deal Score on each find, a timestamp on each alert, and no Facebook login. Facebook's are free; Deal Scanner is $3.99 a month, cancel anytime.

Sources checked

Facebook Help Center, OfferUp Support and Craigslist's help pages for each marketplace's own alerts; each competitor's own pricing page as listed on the comparison. Checked October 26, 2026.