For Amazon FBA and FBM sellers
Know what it’ll make before you buy it.
Profit, ROI, sales rank, Buy Box and competing offers for any Amazon product: in a side panel next to the listing, and in a phone app that scans barcodes in the store.
Brickly Classic Building Bricks Set, 500 Pieces with Storage Tub
#1,342 in Toys & Games · ★ 4.6
Profit
$6.05
ROI
63%
Margin
23%
Everything you check before you buy, in one place
Profit in one glance
FBA or FBM on Amazon’s 2026 US fees (referral, fulfilment, storage, inbound placement, the fuel surcharge) plus your own prep, shipping, tax and cashback.
Will it sell?
Estimated monthly sales, rank drops and averages, and a price and sales-rank history chart.
Buy Box and competition
Who wins the Buy Box and how often, every competing offer, and how much stock each seller holds.
Red flags up front
Amazon on the listing, brand and private-label risk, hazmat and meltable items, oversize fees, variations and price swings.
Scan in the store
The phone app reads UPC and EAN barcodes with your camera and opens the matching product straight away.
A buy list that travels
Save what you’ll buy with its cost and price, keep notes per product, and export the list as a CSV.
Up and running in minutes
- 1
Pick a plan
Pay by card or in USDC. Every plan includes the Chrome extension and the phone app.
- 2
Add Sourcerer
Install the Chrome extension, and add the phone app to your home screen.
- 3
Go sourcing
Open any Amazon product, or scan a barcode, and the numbers are already there.
Questions
Do I need my own Keepa or Amazon account?
No. Product data is included in your plan, and you don’t connect an Amazon seller account.
Does it tell me if I’m allowed to sell a product?
Not yet: eligibility checks need your Amazon seller account, and they’re planned for later. Everything else works without one.
Which Amazon marketplace does it cover?
Amazon.com, in the United States.
What counts as a lookup?
Opening a product is 1; with every offer and seller stock it’s 4; a barcode scan is 1; a keyword search is 3. Your allowance resets at midnight Pacific and covers the extension and your phone together.
Does the phone app work on iPhone?
Yes, on iPhone and Android. Open it in your browser and add it to your home screen to use it like an app.
Can I pay with crypto?
Yes: USDC on Solana pays for a month or a year up front. Card plans renew monthly or yearly, and you can cancel any time.