Your second opinion
Thinking about buying something used?
Screenshot it. We'll tell you: BUY, NEGOTIATE, or BYE.
Buy or Bye is the fast, evidence-aware second opinion before you buy something used. No fake market data. No mystery score.
Before you buy it, Buy or Bye it.
BUY OR BYE?
2019 Honda Civic EX
Score
64
Seller wants
$15,800
Solid model, but the price needs to come down before the math does.
The roast
“Good car. Bold price. Seller thinks those miles were driven by angels.”
Simple by design
A better answer than “seems like a good deal.”
01
Submit what you have.
A screenshot, photo, listing URL, or the details you know. We identify the item and show the category we're using.
02
Get the honest read.
A transparent Deal Score, verdict, risks, inspection list, and questions worth asking.
03
Send the verdict.
Share a card built to start the group-chat debate—and bring people back to check theirs.
Free deal check
Show us the listing.
Your result
BUY OR BYE?
Your verdict card lands here.
We score the evidence you give us. No made-up comps, no fake precision.
Built for the stuff people actually buy
Marketplace is broad. The question stays simple.
For houses, jewelry, antiques, collectibles, luxury goods, and other items requiring expert authentication, we'll say so directly instead of pretending a quick score is enough.