Help & support for BookTrendr, your Kindle book niche research tool

Niche Research is BookTrendr's core Kindle market research tool. It pulls live Amazon data for any topic — bestsellers, keyword demand, categories, and an AI-scored opportunity summary — so you can judge whether a book idea is worth writing before you write it. Think of it as an all-in-one Amazon book market analysis: demand, competition, and category fit in a single pass.

How it works

1. Type a topic into the search bar (be specific — "keto diet for beginners" works better than "diet") and click Analyze. This costs 10 credits.
2. You'll land on Top Paid Bestsellers — the current top sellers for that topic, with BSR, estimated sales/day, price, and reviews for each.
3. Above the table, the Opportunity Score gives you a 0–100 read on the niche, with a plain-language summary explaining the number — search demand, review barriers, and where the real gap is.
4. Switch to the Keywords tab to see related search terms, their monthly volume, and a Quick Score. Click "Research →" on any keyword to analyze it as its own topic.
5. The Categories tab shows two things: categories your real bestsellers are actually shelved in (verified), and other categories worth considering based on keyword relevance. Use "Copy Path" to grab the exact category breadcrumb for your own book's categorization.
6. Reader Analysis infers what readers likely want based on bestseller performance and search demand — not real review text, since that data isn't reliably available, but a grounded read on the market.
7. Ideas & Strategy (opened separately, since it takes a moment to generate) gives you a verdict, differentiation angles, and a launch difficulty rating.
8. Click Save to Projects to keep the analysis — it's free to save and revisit anytime from My Projects.

Two different ways to research the competition directly, without running a full Niche Research analysis.

Reverse ASIN

Reverse ASIN is BookTrendr's reverse ASIN lookup tool for books — it shows you what keywords a specific competitor book ranks for on Amazon.

1. Find a competitor's ASIN (the 10-character code in its Amazon URL, e.g. B0DCF34BWR)
2. Paste it into Reverse ASIN and click Analyze (2 credits)
3. You'll get a ranked list of keywords that book shows up for, sorted by relevance — useful for reverse-engineering how a successful book in your niche is actually getting found

URL Analysis

URL Analysis takes any Amazon category page, bestseller list, or search results URL and gives you instant aggregate market stats.

1. Copy a URL directly from Amazon — a category page, a "Best Sellers in X" page, or a search results page all work
2. Paste it in and click Analyze (3 credits)
3. You'll see average price, average reviews, average rating, and total book count across everything on that page — a fast gut-check on a category's overall competitiveness

Both tools have a "Research →" link on individual results, letting you jump into a full Niche Research analysis for anything interesting you find.

Monitor is BookTrendr's Kindle price tracker and bestseller rank tracker in one — it watches specific books, authors, and whole categories over time (BSR, price, and review count) and alerts you when something meaningful changes.

What counts as "meaningful"

• BSR improves by 50%+ since the last check (breakout)
• BSR worsens by 50%+ since the last check (drop)
• A book crosses a review milestone (10, 25, 50, 100, 250, 500, or 1,000 reviews)
• Kindle price changes by $0.50 or more
• A monitored author publishes a new book

Getting started

1. From any bestseller row, Reverse ASIN result, or Niche Research page, click the menu icon and choose "Add to Monitor"
2. To track an author instead of a single book, go to Monitor → Authors and paste their Amazon author page URL
3. To track a whole category for new titles and price changes, go to Monitor → Categories and paste an Amazon category or bestseller URL. The first snapshot is taken right away, and the category is checked again weekly.
4. Every free account gets 3 books of monitoring, free, for the first month — no purchase needed
5. For ongoing tracking beyond that, add the Monitor add-on from the Billing page — priced separately from your plan and available on any plan, including Free

Monitor add-on limits

The Monitor add-on comes in two tiers, each covering books, authors, and categories:

• Starter Monitor — track up to 5 books, 3 authors, and 3 categories
• Pro Monitor — track up to 20 books, 10 authors, and 10 categories
• Free trial (first month, no purchase) — 3 books and 1 category; author tracking needs a paid Monitor tier

Turning on email alerts

1. Go to Settings → Notifications
2. Enter the email address you want alerts sent to and click Save
3. Toggle on whichever of the five alert types you want to receive by email — in-app alerts (visible in the Alerts tab) always work regardless of your email settings

If you cancel Monitor: tracking pauses immediately, but your history is kept for 90 days. Resubscribe within that window and everything — including your existing books, authors, categories, and their snapshot history — picks up right where it left off.

A few tools are available without running a full analysis, and cost little or nothing.

• Search Keywords (Tools menu) — look up search volume and a Quick Score for any keyword or phrase. Costs 2 credits per run.
• Search Categories (Tools menu) — find Kindle categories relevant to a topic, with a rough fit score. Costs 1 credit per run.
• Reverse ASIN and URL Analysis are also reachable from Tools directly, without needing a saved project first.
• Title Generator — enter your book's topic, genre, and a few optional details (target audience, angle) to generate 25 titles across 5 different proven formulas. Costs 1 credit per run.

These are a good starting point if you're not ready to spend 10 credits on a full analysis yet, or just want a quick, low-cost answer to one specific question.

Deeper checks on your results

Two optional actions go deeper on an analysis you've already run — you choose when to spend the credits:

• Deep Scan (15 credits) — after a Niche Research, pick up to 8 keywords and run live Amazon rank checks to see exactly which books rank where for those terms. Use it when you want hard ranking data on a shortlist, not just the overview.
• Load BSR & Categories (10 credits) — on a URL Analysis result, enrich the listed books with their live BSR and real category placements. Use it when you need the actual rank and shelf data behind a category page.