About Car Flip Finder
What Car Flip Finder is
Car Flip Finder is an app for people who buy used cars to resell them — independent flippers and small dealers doing anywhere from two to twenty cars a month. It watches Facebook Marketplace continuously across the 29 metro markets it covers, puts a value on every car it sees, and sends an alert when something is listed well under what it should sell for. Roughly 300,000 used-car listings pass through the scan on a typical day.
The problem it solves isn't knowing how to flip a car. It's being awake and looking at the right moment. A genuinely underpriced listing gets three messages in the first ten minutes and reads "pending pickup" by dinner.
How the data works
Every listing gets two anchors: an estimated wholesale value — what the car moves for between dealers, shown on the Dealer plan — and an estimated retail value, what it realistically sells for to a retail buyer. The gap between the asking price and those anchors, less what the car looks like it needs, is the estimated spread. Cars are then tiered Steal, Great, Good, or Pass, so a feed can be skimmed in seconds instead of read.
Every number here and in the app is an estimate from market data, not a promise. A spread is what the math says before you've seen the car, talked to the seller, or opened the hood.
A slice of that data is public on the deals pages: real listings the app scored, shown with asking price, estimated retail, and estimated spread. Those are held back at least 24 hours and carry nothing that identifies the seller or the listing — no photos, no VIN, no link. Subscribers get the live feed; the public pages exist to show the feed is real, not to work around it.
Who runs it
Car Flip Finder is built and run by Matt Brody under Teach Your Kid to Read LLC, which operates a small portfolio of software products. It started from the ordinary version of this problem: it's easy enough to learn what a car is worth, and nearly impossible to sit on a marketplace all day waiting for the one listing where the seller priced it wrong. Software is good at sitting and watching. That's the whole idea — the rest is valuation data and getting the alert out fast.
It's a small operation, which is the honest answer to why coverage is 29 metros and not all of them. Markets get added one at a time, as the data for each one holds up.
What the blog is
The blog is research, not filler. Posts cover what a specific model is actually worth, what reconditioning really costs, how title and dealer-license rules differ state to state, and how the sourcing tools compare — with the numbers shown and their source named. Where a figure is an example, it's labeled as an example.
Two standing rules. No earnings promises, ever: nobody here will tell you what you'll make flipping cars, because nobody knows. And no invented testimonials, case studies, or statistics — if a number can't be sourced, it doesn't get published.
How to reach us
Questions, corrections, a market you want covered next, or a post you think gets something wrong — the support page has the address, and it reaches Matt directly. Corrections get a fast reply.