BookSylo
Amazon rank & review tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Know the moment your book moves on Amazon: rating, rank, price, and bestseller-badge alerts with the numbers in the notification. No Amazon login, no KDP connection.
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 specific 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 drawn on your rank history graph.
• Milestones and badges — an alert when you break into a Top N, and a Best Seller signal when a category rank cracks the Top 10.
• Price watch — public price changes, alongside every other signal.
ALERTS ON YOUR TERMS
• The numbers are in the notification — "now at 48 ratings (+1)", not "something changed". Most of the time you will not even open the app.
• Per-category control — every category your book ranks in 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 what it did.
• Share a KPI snapshot or a single Activity moment through your device's share sheet. Only public metrics are shared — never your private labels, notes, email, or diagnostics.
FOR AUTHORS WHO
• Publish directly on Amazon and want visibility without the manual grind.
• Care about one subcategory more than the whole store.
• Run promos and want to know what they actually did.
• Track comp titles and category bestsellers to learn how their category moves.
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, and 14 days of history. No account required.
Pro — required to track 2 or more ASINs. Multiple books, editions, formats, and marketplaces; multi-select from title search; edition grouping into one Home title card; comp title tracking; Check now for an on-demand refresh, once per hour per book; and 90 days of history. A 14-day free trial is available where offered. The App Store shows the price and trial terms in your local currency.
BookSylo Pro is an auto-renewing monthly subscription. It renews until cancelled, and you can cancel any time in your App Store account settings.
Available in English, German, and Spanish. Works on iPhone and iPad.
BookSylo is an independent product and is not affiliated with Amazon. A title only has data in a marketplace where it is actually listed.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.booksylo.com/privacy/
Support: support@mail.booksylo.com
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Fixed: adding a book stopped working on the previous version after a server-side change. Book search and Add Book work again.
• New app icon and refreshed branding throughout.
• Rating alerts now arrive as one notification — the new rating and the star average it moved, together, instead of two separate pings.
• Free promotions now read as "free" everywhere a price appears, instead of $0.00.
• Daily summary is on by default.
• History fixes: scrubbing works inside the expanded chart, table values no longer lose their last digit, and column headings no longer truncate in German and Spanish.
• More reliable notification delivery, subscription state, and session recovery.
• The app now tells you when a newer version is available.
The developer, Data Pro Analytics LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Data Pro Analytics LLC
- Size
- 39.4 MB
- Category
- Books
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Data Pro Analytics LLC