Is that listing a good deal? Get an AI price check, fair market value and comparables for marketplace listings.
Users
4
store count
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
total ratings
Store rank
#277K
#229K among extensions
Version
2.1.0
updated 9 Oct 2026
About Check This Deal
Found something on an online marketplace and not sure if the price is
right? Open the listing, click the Check This Deal icon, then
Appraise this listing.
The extension takes a screenshot of the listing you are looking at, reads
its text, and sends both to checkthisdealforme.com, where Google's Gemini
model reads the item, its condition and the asking price. A few seconds
later the popup shows:
- A verdict: Good Deal, Fair Price or Overpriced
- The asking price against the item's fair market value used, and how far
apart they are
- An offer to make, with a message to the seller ready to copy
- Red flags: signs of a scam or a problem the listing hints at
- What to check or ask before you pay
- Comparable items, each linked to what it has sold for
Opening the popup on a listing someone has already appraised shows that
appraisal right away, free, even before you sign in. Re-appraise asks for
a fresh one if the seller changed the listing.
You can close the popup while it works; the result is waiting when you
open it again. Appraisals are saved, so reopening the popup on the same
listing shows the result without spending another credit. Every appraisal
is also kept in your history on checkthisdealforme.com.
An account on checkthisdealforme.com (sign in with Google) is required. New
accounts get 3 free appraisals; more can be bought as credit packs on the
site.
Appraisals are estimates from an AI model, not professional valuations.
Check the comparables before you buy.
Check This Deal is made by Lunch Time Surf LLC and is not affiliated
with or endorsed by any marketplace.
Questions or account deletion: tacos@lunchtimesurf.com