MarketCheck

by Sana M · Shopping

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

MarketCheck - Price comparison and scam detection for Facebook Marketplace

Users

+3 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#148K

#123K among extensions

Version

2.0.0

updated 8 Feb 2026

Users

monthly, 8 months

Latest, 15 Oct 2026: 21 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About MarketCheck

MarketCheck helps you shop safely on Facebook Marketplace. ✓ Price Comparison - See if you're getting a fair deal by comparing with new and used prices ✓ Scam Detection - AI analyses listings for warning signs like new seller accounts, unusually low prices, and vague descriptions ✓ Seller Review - Check how long the seller has been on Facebook ✓ Image Check - Verify if listing photos appear elsewhere online How it works: 1. Browse Facebook Marketplace as normal 2. Click on any listing 3. MarketCheck panel appears with analysis 4. Click "Check this listing" for full AI analysis Free to use. Your data stays private - we don't store your browsing history.