MarketCheck

Unknown author · Shopping

Open in Chrome Web Store

Users

Avg rating

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Ratings

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Updated

Feb 8, 2026

Media

4 items

Description

MarketCheck - Price comparison and scam detection for Facebook Marketplace 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.

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
11
Description length
Characters in the listing description.
742
Media assets
Screenshots and videos on the listing.
4
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
59

These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.