The underpriced car is gone in 41 minutes. We find it in four.
Marketplace Arbitrage watches Facebook Marketplace around the clock, scores every listing against real resale comps, and hands you the ones worth driving for — with your opening message already written.
- Margin-scored feed. Every listing ranked by estimated spread, not recency.
- Message written for you. Approve it, send it from your own account.
- Autopilot when you want it. Hand off full negotiation on deals you flag.
You are not losing deals on price. You are losing them on latency.
Refreshing is a full-time job
The listings worth having are mispriced by an owner who wants it gone this week. They are found and gone before most buyers open the app.
Most "deals" are not deals
Cheap and underpriced are different things. Without live comps you spend your Saturday driving to a car that was priced correctly all along.
The first message decides the price
A lowball that reads like a bot gets ignored. A specific, casual, cash-today message gets a reply — and anchors the whole negotiation.
Three steps. You stay in control of every one.
Set your box
Makes, models, year range, radius, and the minimum spread you will get out of bed for. Takes about a minute.
Get scored deals, not noise
We scan continuously, price each listing against recent local sales, and text you only when something clears your margin floor.
Send, or hand it off
Your opening message is drafted and waiting. Send it yourself in one tap — or flip a deal to autopilot and let the agent run the back-and-forth.
We are onboarding founding cohort by hand.
Every account gets set up with a real person, because the scan box is worth getting right. Leave your number and we will text your invite the moment a slot opens.
- Invite arrives by text, usually within 48 hours
- Have a code from a partner? Enter it and skip the queue
- No card, no commitment, no spam — one text, then it is up to you
You're on the list
Watch for a text from a +1 305 number. Reply STOP any time to opt out.
Straight answers
Does this message sellers pretending to be me?
Not by default. The standard flow drafts the message and you send it from your own account, so every conversation is genuinely yours. Autopilot, where the agent runs the back-and-forth on a deal you flag, is available and off until you turn it on per deal.
Is automated messaging against Facebook's terms?
Marketplace's terms restrict automated access and messaging, and accounts that automate at volume can be restricted. That is exactly why the default flow keeps sending in your hands. If you enable autopilot, you are choosing to accept that risk on your own account — we will tell you so in the product, not bury it here.
What does it cost?
Founding cohort pricing is $79/month, locked for life for the founding cohort. You will see the number before you are asked for a card, and there is no charge during the invite period.
Which markets work today?
Comps are strongest in dense metros with high listing turnover. We are onboarding Miami, Tampa and Orlando first — if you are outside that, leave your number anyway and we will tell you honestly when coverage is real.
Why do you want my phone number and not my email?
Because a deal that clears your margin floor is worth about four minutes, and nobody checks email in four minutes. Texts are how the product works, so it is how the invite works too. One message, and you can stop it with STOP.
The next underpriced Camry gets listed today.
Be the first message in the seller's inbox instead of the ninth.
Request an invite