Launches and promotions
Link a private note to a launch, price drop, or promo day and see it on your rank and review history. Pro adds an on-demand Check now refresh.
Public Amazon signal tracking for authors
Track your book's public Amazon momentum.
BookSylo monitors public Amazon signals for your books and highlights the changes that matter, so you do not have to keep checking manually.
Download on the App Store GET IT ON Google Play
01
Track public Amazon signals such as reviews, ratings, rank, price, and badges.
02
See what changed at a glance.
03
Get notified when meaningful changes happen.
Built around real author moments
Keep writing. BookSylo watches the signals.
Whether you are launching one book, managing several editions, or learning a category, BookSylo keeps the public signals close without making Amazon a daily habit.
Category goals
Set the Top N you are aiming for, see the goal on your rank graph, and get an alert when your book crosses it.
Catalogs across formats
Watch Kindle, paperback, hardcover, and audiobook editions across supported Amazon marketplaces.
Category research
Track public comp titles and category bestsellers alongside your own books to understand how your category moves.
Features
Less repetitive checking, more useful signal.
BookSylo is built for authors who want to keep an eye on public book momentum without turning Amazon pages into a daily chore.
Review & rating alerts
Get notified when new reviews land or your rating shifts.
Ranking movement tracking
Follow rank changes over time, with configurable thresholds so small noise does not trigger alerts.
Milestone & badge tracking
Bestseller and category milestones such as entering a category Top 10.
Daily summaries & quiet-hour alerts
Digest-style updates and quiet-hour-friendly notifications that respect your time.
Fast add-book flow
Start tracking by ASIN, ISBN, or title with an optional author hint.
Notes & labels
Keep tracked books organized with private notes and labels.
Pulse-at-a-glance home
A quick, lightweight view of every tracked book's current state.
Price change watch
See public price changes alongside other meaningful book signals.
Edition grouping for Pro
Group editions of a title into one tidy Home title card.
Pricing
Start with one book. Go Pro when your catalog grows.
The core tracking experience is free for one ASIN. Pro adds the room, history, and launch-day controls needed for a growing catalog.
Free
One book, fully watched
Free for one Amazon ASIN
Watch one edition of one book in one marketplace, with the core signals and controls included.
- 1 tracked book: one Amazon ASIN
- Choose from US, UK, DE, CA, and AU
- Reviews, ratings, rank, price, and bestseller-badge tracking
- Alerts for meaningful changes
- Daily summary, quiet hours, and per-book settings
- 14-day history with graphs and table view
- Private labels and notes
- No BookSylo account or Amazon login required
Pro
Your catalog, connected
$4.99 per month
For multiple books, editions, marketplaces, and the comp titles you want to keep close.
May include a 14-day free trial where available.
- Everything in Free, for your whole catalog
- Multiple books, formats, and marketplaces
- 90-day history for longer comparisons
- Check now for launch and promo moments
- Track comp titles and category bestsellers
- Group editions into one tidy Home card
- Registered BookSylo account required
Trust & privacy
Public data only. No Amazon login.
No Amazon login required.
BookSylo uses public Amazon information only.
BookSylo is an independent product and is not affiliated with Amazon.
BookSylo does not store Amazon account credentials.
FAQ
Clear answers before you install.
Do I need an Amazon account or password?
No. BookSylo never asks for an Amazon login and never stores Amazon credentials.
Does BookSylo track my sales or royalties?
No. BookSylo only reads public Amazon page signals such as reviews, ratings, rank, price, and badges. It is not a sales or revenue tracker.
Is BookSylo affiliated with Amazon?
No. BookSylo is an independent product and is not affiliated with Amazon.
What does it cost?
The Free plan lets you track 1 book. Pro is $4.99 per month, is required to track 2 or more books, and may include a 14-day free trial where available.
What data does BookSylo store?
Your tracked books, notification preferences, an optional account email, and any support diagnostics you choose to send. It does not store Amazon credentials.
Which devices are supported?
BookSylo is a mobile app for iOS and Android.
Which Amazon marketplaces are supported?
BookSylo tracks books in the US, UK, Germany, Canada, and Australia Amazon marketplaces (US, UK, DE, CA, and AU).
How do notifications work?
BookSylo regularly checks public Amazon pages for your tracked books, detects meaningful changes, and sends them to your device as notifications.