Kindletrends

Kindletrends is a weekly research newsletter that delivers automated genre intelligence to fiction authors publishing on Amazon Kindle. Built by Nat Connors, a data scientist and self-published fiction author, the service scrapes the Kindle store's top 100 bestsellers across 14 genre options weekly, runs NLP and statistical analysis on the data, and sends subscribers a structured report every week.

What You Get#

• Weekly Genre Report: Cover trend analysis (montage of top 100 covers + dominant color palette), top keywords appearing in titles and blurbs, trending tropes and character types, story structure patterns from bestselling blurb language, and newly released titles rising through the charts
• Titles to Watch: A curated section highlighting notable releases, series debuts, and authors with multiple charting titles that particular week
• Downloadable Data: Each issue includes raw data as an Excel file, a PDF compilation of top-100 blurbs for competitive blurb analysis, and a downloadable cover montage image for offline research
• Also Boughts Downloader Chrome Extension: Free Chrome extension (4,000+ users) that adds a one-click download button to any Amazon Kindle book page — exports Also Bought, Also Viewed, and Also Read lists as tab-delimited files with ASIN, title, series, author, reviews, price, and direct URLs across US, UK, DE, and CA stores
• Interactive Category Dashboard: Access to a searchable spreadsheet of 4,000+ Amazon categories filterable by price, publication status, and other metrics
• Kindletrends Vella: Included free with subscription — a separate newsletter covering trends on Amazon's Kindle Vella platform

Who It's For#

• Genre fiction authors: Designed primarily for writers in romance, cozy mystery, fantasy, thriller, and similar categories where cover design and blurb language measurably affect click-through
• Authors entering a new genre: Weekly trend data shortens the research time required to understand what cover styles and blurb language are converting in a specific niche
• Writing groups: Nat Connors explicitly designed the reports to be shared within writing groups for collaborative market analysis

Pricing: $15/month standard. Coupon codes SPA and INDYAUTHOR reduce the price to $10/month permanently. The first month is included in the sign-up process.

Strengths#

• Multiple Amazon markets covered: US, UK, German (DE), and Canadian (CA) stores tracked, useful for authors targeting international readers
• Blurb structure analysis: Quantitative data on bestseller description length, paragraph count, and narrative perspective is a differentiator not found in keyword tools
• Also Boughts extension is genuinely free: No subscription required for the Chrome extension — a standalone value for any author doing competitive research
• Founded by a practitioner: Nat Connors is a working genre fiction author, which shapes what the newsletter tracks and why

Limitations#

• Newsletter format, not a live dashboard: Data arrives weekly by email; there is no on-demand search interface or real-time lookup between issues
• Fiction-dominant: Most of the 14 genre options are fiction categories; non-fiction authors have limited relevant options
• NLP trend data ≠ search volume: The keyword analysis reveals what words appear in top-100 book titles and blurbs, not what readers are actively searching for on Amazon — a different signal from Publisher Rocket's keyword search volume data
• No KU or KENP analytics: Does not track Kindle Unlimited page read rates, subscription-revenue patterns, or KU-specific ranking signals
• 14 genres covered: Authors in very niche or hybrid categories may not find a matching newsletter option in the current lineup

Alternatives#

Publisher Rocket ($97 one-time) provides real-time keyword search volume and Amazon Ads data but has no trend report format. K-lytics ($37–$97) offers deeper pre-writing genre strategy reports at higher cost. For raw also-bought data specifically, the free Also Boughts Downloader Chrome extension provides the underlying data without a Kindletrends subscription.