Real data. Real numbers. Real opportunity.
Source smarter.
Flip with confidence.
World Supply Express builds FlipCheck: real-time resale data so you can spot profitable products, faster.
- Products Tracked
- 10K+
- Marketplaces Covered
- 4
- Free Scans a Month
- 10
Real-Time Market Data
A data engine that ingests sold listings and normalizes pricing across marketplaces.
See How it WorksReal-Time Resale Data
FlipCheck analyzes sold listings so you know what's worth buying.
Join the Waitlist
FlipCheck
Real data.
Real potential.
Snap a product, search, or scan a barcode to see real sold listings, fees, and estimated profit - instantly.
- Search
- Scan
- Analyze
Built around a real-time market data engine
FlipCheck is pre-launch. It's designed to ingest sold listings across marketplaces, normalize pricing and fees, and return a profit-ready comp in the time it takes to snap a photo.
Building first
Scan or search a product, see recent sold prices, and get a fee-and-profit calculation.
After that
The listing generator, and profit tracking by item, store, and month.
Also in development
Pull Sheet, for scoring a supplier's list, is being built alongside FlipCheck and validated directly with retailers. Business accounts for teams are on the roadmap after that.
Who we are
Small, on purpose. You get the founder, not a rep.
World Supply Express is Samuel Lee, building FlipCheck. Sourcing product to resell meant hours spent checking sold listings by hand across marketplaces before ever knowing whether a purchase would pay off. FlipCheck is the tool that answer should have taken all along.
There is no account manager to get passed to and no queue to sit in - you're talking to the person who builds it.
If something isn't worth buying, FlipCheck says so before you spend the money. That is the whole pitch.
In development
Pull Sheet
A FlipCheck feature for turning a supplier's inventory or allocation list into a purchasing decision - every line scored against real sold data instead of a gut call.
- Paste or upload a supplier's list instead of pricing it by hand
- Every line ranked by expected margin and recent sales volume
- One list instead of a spreadsheet per release
Pull Sheet – in development
We're building Pull Sheet and validating the workflow directly with retailers. There's nothing to log into yet, but it's in active development, not just a concept.
Want early access? Join the FlipCheck waitlist and say so.
Straight answers
What does FlipCheck actually do?
Search, scan, or snap a photo of a product to see recent sold prices, marketplace fees, and estimated profit before you buy it.
Will it be free to try?
Yes - the free tier will include 10 scans a month once you're in. Join the waitlist for early access.
Which marketplaces does it cover?
eBay, Poshmark, Mercari and Depop at launch, with more added over time.
Is Pull Sheet live yet?
Not yet. It's in active development and we're validating the workflow with retailers. See where it stands.
Get FlipCheck.
We're opening it to a small group of resellers first. Join the waitlist and we'll email you when your spot is ready.