What this is
KDP Lens is a browser add-on. It reads the Amazon.com page already in your tab. Rank-to-sales math runs in the browser. Page text does not leave the machine. The only network call is a license-key check, and only when you paste a key.
Every figure on this page is a demo overlay. It is not a live Amazon rank, not a KDP dashboard, and not a receipt. The sales curve is guessed and will be calibrated later from real data.
What you see on each page typedemo
- Book pageTitle, Best Sellers Rank, estimated sales per day, category depth (the overall rank you would need to hit #1 in that category), price, reviews, publisher.
- Best-seller listEach listed rank treated as that category's BSR, with estimated sales per day. Hitting #1 means rank 1 on that list.
- Search resultsResult count, average reviews of the top 10, and the share of those ten that look indie vs a big publisher.
Demo overlay of 7 Sep 2026one product page
These rows are a hand-written demo of what the panel would print on a made-up Kindle book page. They are labeled demo. They were not read from amazon.com.
| Field | Demo value |
|---|---|
| Title | The Salt Road (demo) |
| Store | kindle (demo) |
| Best Sellers Rank | #12,450 in Kindle Store (demo) |
| Est. sales / day | 4.63 (demo, guessed curve) |
| Category | #42 in Historical Fantasy (demo) |
| Est. overall rank to hit #1 in that category | #296 (demo) |
| Listed price | $4.99 (demo) |
| Reviews | 318 (demo) |
| Publisher | Independently published (demo) |
Demo of the other two page types, from the same sample file:
| Page type | What the panel shows (demo) |
|---|---|
| Best-seller list | #1 Ash Court, about 4,000 estimated sales a day (demo, Kindle curve at rank 1) |
| Search results | 4,000 results; average 1,391 reviews in the top 10; 60% of those ten look indie (demo) |
Free and paid
- Free: 10 pages a dayCounted in your browser. At 11 the panel shows Unlock lifetime — $49 and a link back to this page.
- Paid: $49 onceA lifetime key from the entitlement service. Paste it in the popup. A good check is cached 7 days so the add-on still works offline.
- InstallChrome listing: STORE-PENDING. Edge listing: STORE-PENDING. The zip is built from the extension source; store review is a person step.
What it never does
- Never touches your KDP accountNo login, no dashboard scrape, no upload.
- Never sends page textBook titles, ranks, and reviews stay on your machine. The only network call is a key check you start from the popup.
- Never a receiptEstimated sales are a guessed curve, not Amazon's payout file.
See the overlay before you pay
You do not have to take our word for what sits in the file. Here is the demo overlay, carrying the same fields the panel prints, labeled as a demo.
- Open the demo overlay as a CSVA plain spreadsheet file. It saves to your machine rather than painting itself into a browser tab, and it opens in Excel, Numbers or Google Sheets.
- The same demo overlay as JSONThe same rows again, laid out for reading with code.
What arrives after you pay: The lifetime key is printed on the thank-you page after payment. Paste it into the add-on popup.
What you would be paying for: $49 once for a lifetime KDP Lens license key. Free use is 10 Amazon pages a day without a key. The add-on never touches your KDP account and never sends page text off your machine. It is not a subscription.
Start the thread
$49 once · one lifetime license key. Free use is 10 Amazon pages a day. A valid key lifts the daily cap
Buy the lifetime key — $49 onceChrome listing: STORE-PENDING. Edge listing: STORE-PENDING. The lifetime key is printed on the thank-you page after payment.
Rather ask first? Email operations@ustechautomations.com. Tell us you want the lifetime key. The key is printed on the thank-you page after payment.