The one you overpaid for
You got caught in the run-up. Two bids past your limit it stopped feeling like a deal — and you won anyway.
Never overpay. Never miss a steal.
A card hits the screen and you have about ten seconds. CompFlash tells you what it actually sells for — and the most you should pay — before the hammer drops.
Five scans a day, free, no card required. Works on Whatnot, eBay Live, Fanatics Live and Twitch.
2018 Panini Prizm Luka Doncic #280 — PSA 10
94% match17 comps usednewest 12 days ago
Buy
Bidding is still well under what this card has been selling for.
Max bid
$412Bidding now
$299Answer on screen in 1.2 secondsTap to see all 17 sales
If you buy on live
You already know this feeling
The one you let go
You were not sure, so you passed. You looked it up after the show. It sold for a third of what it books at.
The ten seconds you do not have
By the time you have typed the player, year and parallel into a sold search, the lot has closed and the next one is already up.
How it works
Screen to answer in about a second
Keep watching
The extension rides along on the stream you are already on. No second screen, no typing, no pausing.
It reads the card
Player, year, set and parallel — plus the grade and cert straight off the slab label.
You get a number
Recent sold comps and the most you should pay, on screen before the lot closes.
Why traders trust the number
A number you can actually bid on
It shows its work
Open any result and see every sale it counted, everything it threw out, and why. No black box asking to be trusted.
It admits when it is unsure
A confident wrong answer costs you real money. When the frame is blurred or two parallels look identical, it says so instead of guessing.
It knows a 10 is not a raw card
Comps are grade-adjusted, so you never talk yourself into a slab price off a shoebox sale.
CompFlash only uses marketplaces that permit it, and every result names its sources.
Pricing
Start free. Upgrade when it pays for itself.
Free
$0
5 scans a day
Enough to find out whether it earns a place in your setup.
Start freeHustle
$24.99/mo
50 scans a day
For anyone buying to flip. One avoided overpay covers the month.
Start freePro
$149.99/mo
1,000 scans a day
Full-time dealers, breakers and shops working every night of the week.
Start freePrices in USD, billed monthly. Cancel any time; 14-day refund on your first paid period — see terms. Need more than Pro?Talk to us about a shop plan.
The next card is up in ten seconds.
Start free — five scans a day, no card required. Add the extension and it works on the auctions you already watch.
Start free