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Description
Research Amazon book niches with rank, estimated sales, category insights, and optional Pro keyword estimates. Booktol Niche helps self-publishers and authors evaluate book niches while browsing supported Amazon retail pages. DATA USE AT A GLANCE On supported Amazon pages, Booktol Niche reads publicly visible listing data such as ASIN, rank, category, price, rating, and reviews. Public ASIN/category identifiers and refreshed public rank results may be sent to Booktol's shared cache so users do not repeat the same lookup. These requests omit Amazon cookies, login/session credentials, and the full page URL. Optional Pro sends the current ASIN/search phrase and visible metrics only after the user explicitly clicks to load keyword research. Details: https://keywords.booktol.com/privacy FREE — NO ACCOUNT REQUIRED • Inline badges for Best Sellers Rank, modeled monthly sales, and estimated royalty • Category ranks and estimated sales pace needed to reach #1 • Toolbar summary with competition score, niche temperature, and an Enter / Caution / Avoid research verdict • Search-page snapshot with visible competitors, prices, ratings, reviews, and weak-listing share • Category links open the matching Amazon Best Sellers chart PRO (optional subscription) • Up to 7 relevant keyword ideas per book • Modeled monthly-search estimates • Amazon catalog competition scanned up to 100 matching books per keyword Pro requires a Booktol account and paid subscription. Sign-in credentials are entered only on extension-owned pages and sent securely to Booktol for authentication; passwords are never stored by the extension. Account tokens are stored locally in Chrome. PRIVACY • No Amazon or KDP cookies, passwords, or session access • No browsing-history collection outside supported Amazon pages • No advertising analytics or automatic search-query telemetry • Payment card details are handled by Stripe outside the extension Privacy policy: https://keywords.booktol.com/privacy Sales, royalty, demand, and competition figures are estimates based on public and licensed signals—not Amazon's private sales or search-count data. Results are research aids, not guarantees. Booktol Niche is independent and is not affiliated with, endorsed by, or sponsored by Amazon.com, Inc.