BookSylo

BookSylo

In-app purchases

About this app

Know the moment your book moves on Amazon.

BookSylo watches your book's public Amazon pages and tells you when something meaningful changes — a rating, your rank, the price, or a bestseller badge — so you can stop refreshing and get back to writing.

No Amazon login. Ever. BookSylo reads public Amazon information only. It is not connected to KDP, it is not a sales or revenue tracker, and it never asks for your Amazon password.

WHAT BOOKSYLO WATCHES
• Rating alerts — a new rating lands, or your star average shifts.
• Rank movement — store rank plus every category your book is listed in, with thresholds so small noise stays quiet.
• Category rank goals — set the Top N you are aiming for and see the goal line on your history graph.
• Milestones and badges — an alert when you break into a Top N, and a Best Seller signal in the Top 10.
• Price watch — public price changes, alongside every other signal.
• Listing health — an alert when Amazon stops listing an edition, and again when it returns.

CAMPAIGNS
Running a price drop, a newsletter feature, or an ad push? Start a Campaign for that window and see what changed in your book's public Amazon signals while it ran: typical rank before against typical rank during, the best position observed, and whether you reached a Top N you set — per book and per category, with the window marked on your graph. Finish with a result card you can share.

Every campaign says plainly what the numbers do and don't show: public observations, not sales, and no proof of what caused a change.

ALERTS ON YOUR TERMS
• The numbers are in the notification — "now at 48 ratings (+1)", not "something changed".
• Per-category control — each category can carry its own threshold, or be muted on its own.
• Daily summaries — one digest a day if you would rather not be pinged.
• Quiet hours, pause, and snooze.
• Activity feed — every rating, rank, price, badge, and milestone moment for a book, in one list.

YOUR CATALOG AND ITS HISTORY
• Add a book by ASIN, ISBN, or a title search with an optional author hint.
• Kindle, paperback, hardcover, and audiobook editions, across 22 Amazon marketplaces: US, UK, Germany, France, Italy, Spain, Canada, Australia, Japan, India, Brazil, Mexico, the Netherlands, Sweden, Poland, Turkey, the UAE, Saudi Arabia, Egypt, Belgium, Ireland, and Singapore.
• Rating, rank, and price history as graphs or a table, with your private notes marked on the graph.
• Private notes and labels — pin a note to the day a promo ran and see it marked on your history.
• Your most important books are checked most often; pin up to 3 to keep them in the fastest group.
• Share a KPI snapshot, an Activity moment, or a finished campaign result. Only public metrics are shared — never your private labels, notes, email, or diagnostics.

PLANS
Free — track 1 Amazon ASIN: one edition of one book in one marketplace. Full rating, rank, price, and badge tracking, notification controls, private labels and notes, one campaign at a time worked through to a shareable result, and 14 days of history. No account required.

Pro — required to track 2 or more ASINs. Up to 50 ASINs across books, editions, formats, and marketplaces; multi-select from title search; edition grouping into one Home title card; comp title tracking; unlimited campaigns; Check now, once per hour per book and up to 20 a day; and 90 days of history. A 14-day free trial is available where offered. Google Play shows the price and trial terms in your local currency.

Available in English, German, and Spanish.

BookSylo is an independent product and is not affiliated with Amazon. A title only has data in a marketplace where it is actually listed.

Privacy policy: https://www.booksylo.com/privacy/
Terms: https://www.booksylo.com/terms/
Support: [e-mail]

What’s new

Campaigns: start a campaign for any promotion and see what changed in your book's public Amazon signals while it ran — typical rank before and during, best position, and any Top-N goal you set.

Also new:
• Filter tracked books by shelf, label, format, or campaign
• Alerts when Amazon stops listing your book, and when it returns
• A one-line "what changed" summary on every book card
• Pin up to 3 books to the most frequent checks
• Country flags in Add Book, and fixes throughout