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BookSylo

Amazon book rank & rating alerts for authors

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BookSylo tracks your book's Amazon Best Sellers Rank (BSR), ratings, price, and badges in 22 marketplaces and alerts you when they move. iPhone, iPad, Android.

PH · launched Nov 9, 2026 · 2 upvotes (top 19%) · 0 views

Niche: marketplace listing and optimization software · 113 launches, 17 in the last 7 days ▲ +70% · Explore this niche →

Category and tags

  • Media & entertainment
  • Analytics & BI
  • Prosumer
  • Not AI
  • Commercial product
  • Android
  • Amazon
  • Books

Visit website ↗ Source listing ↗

Could you build this?

Partial The alert UI, account system, and mobile apps are standard vibe-codeable work, but reliable BSR, ratings, and price data across 22 Amazon marketplaces has no official API and requires scraping that Amazon actively blocks.

What it would actually take: Build a backend that polls Amazon product pages across marketplaces with rotating proxies, headless browsers, and parsing that tolerates layout changes, storing time-series snapshots in a database such as Postgres or Timescale. Then add a threshold and alert engine with push notifications for the iOS and Android apps. The hard parts are keeping scrapers working against anti-bot defenses at scale and keeping the cost of data collection under control, which needs scraping infrastructure experience and an ongoing maintenance budget.

Competitors

Other products that read as similar to this one : 149 launches clear the similarity bar, closest 8 shown.

Attention rank: #15 of 150 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 369 days after the earliest competitor.

The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.