Chrome extension · review first

Capture the page.
Make the call.

Turn a retailer product page into an editable deal draft. ShelfSignal finds the useful product details, flags competing prices, and calculates profit, ROI, maximum buy price, and budget fit.

What it reads when you ask

After you choose “Read page and create draft,” ShelfSignal reads that tab’s product title, current and regular prices, sale or clearance label, barcode and item numbers, brand, model, SKU, image, availability or selected-store label, page address, and short source notes or warnings. The draft stays in the extension until you review it and choose to open ShelfSignal. A selected-store or area label comes from the retailer page; the extension does not request device GPS.

Account and plan boundaries

The public calculator needs no paid plan. Saving a private capture requires sign-in; nearby live signals and creating missions require an eligible active membership. Scout uses manual Amazon values. Pro and Power automation require an eligible connected Amazon Professional seller account.

Sensitive account details stay on the site

Sign-in, Amazon authorization, and checkout happen on ShelfSignal. The extension never receives your account password, Amazon token, or payment details.

Chrome Web Store launch is being prepared. Public browser installs will open here after approval.

Capture draft

Retailer product page

READY TO REVIEW

Current price

$19.99

Regular price

$49.99

Barcode

Exact item ready

Availability

Verify in store

✓ Current and regular prices separated
✓ Complete barcode found
✓ You review everything before saving

119

retailer sites

Clear

price comparison

Profit

buy math

01

Editable deal draft

Bring the useful product details and prices into one clear review before you make a buying decision.

02

Any-store capture

If a site hides its fields, type the visible item details into a human-entry draft and keep the same profit and history workflow.

03

Price conflict review

When a page shows several possible prices, choose the exact current one instead of trusting a silent first match.

04

Exact-barcode lookup

Open an Amazon search for the reviewed barcode, then verify the exact listing, fees, eligibility, and demand yourself.

05

Full profit math

Model landed cost, Amazon fees, ROI, break-even, maximum buy, and budget scenarios, with optional remembered inputs.

06

Remote store missions

Save an exact-barcode capture and ask another shopper to verify one public store with a fresh photo, price, stock count, and location evidence.

The human capture network

Different people can capture different places—without pretending a webpage is shelf stock.

Private page captures stay in the member’s inbox. A store-mission contributor records the exact barcode, shelf price, stock count, a fresh product photo, current store location, and consent. No Amazon seller account is required for that store check.

An approved store observation can answer the requester’s mission. Turning it into a public profit signal is a separate decision that also requires an exact Amazon match, current price and fees, seller-eligibility checks, and ShelfSignal moderation. Other members see source age and confidence—not the contributor’s identity.