From the makers of Designrr · trusted by 450,000+ authors worldwide

Know what to publish
before you write a word

BookSignal reads the demand signals in Amazon's own data and gives every book idea a clear GO-or-SKIP verdict - plus the keywords, categories and pricing to help it sell.

Live Amazon data · verdicts in about 60 seconds · 30-day money-back guarantee
BookSignal Topic Explorer - demand score and GO verdict from live Amazon data
450,000+
authors in the Designrr family
Live
Amazon demand & sales data
~60 sec
from idea to GO-or-SKIP verdict
30 days
money-back guarantee
Demo

See BookSignal in action

Three and a half minutes, real Amazon data - from typing an idea to a GO verdict with keywords and categories.

The toolkit

Every step from "what should I write?" to a listed book

Seven tools, one workflow - all powered by real Amazon data, not guesses.

📈 Topic Explorer

Type any book topic and get the truth in about a minute: real monthly search volume, the competitors actually making money, and a transparent 0-100 score with a GO, MAYBE or SKIP verdict.

  • Demand, competition and profit measured from live Amazon data
  • Realistic revenue potential and recommended pricing per format
  • Exactly how to niche down when a market is crowded
Topic Explorer report
Niche Finder guided Q&A

💡 Niche Finder & 📚 Book Ideas

No idea where to start? A guided Q&A turns what you know into ranked, in-demand niches - then Book Ideas gives you specific titles to publish in each one, with proven backend keywords and winnable categories, ready to copy-paste into KDP.

  • Ranked topics with real search volume behind each
  • One-click hand-off to validate any idea
  • Download any plan as a PDF

🕵️ Bestseller Spy

Found a book that's crushing it in your niche? Paste its Amazon link and see the exact keywords it ranks for - with real monthly search volume, its rank on each one, and the categories it's winning in. Their years of trial and error become your starting point.

  • Every ranking keyword, sorted so the money terms float to the top
  • Category ranks - see where the bestseller badge is winnable
  • Save any competitor to a project and track it
Bestseller Spy keyword results
🧩

Series Creator

Turn one validated topic into a connected 3-5 book series - each book outlined, with its hook and target reader.

💬

AI Publishing Coach

An in-app coach that reads your actual report and explains the numbers - and your next step - in plain English, 24/7.

📊

BSR Calculator

Drop in any book's Amazon rank and see roughly how many copies it sells per day - and what that's worth.

🗂️

Projects & PDF export

Save validations, ideas and competitors to projects. Everything exports to PDF for your own records.

How it works

Three steps, all data - no guessing

1

Pick or find a niche

Bring your own topic, or let Niche Finder surface in-demand niches that fit what you already know.

2

Validate it in ~60 seconds

Topic Explorer measures real demand, competition and profit from live Amazon data and hands down a GO-or-SKIP verdict.

3

Publish with the answers

Get the exact titles, keywords, categories and pricing to list with - so Amazon's algorithm has every reason to show your book to buyers.

Results

What authors do with better information

★★★★★
"Hit #1 bestseller in two ultra-competitive categories within two days of release. None of my four previous books had ever sold."
Jarie Bolander
Author & Engineer
★★★★★
"Over 1,100 downloads in three days - straight into my coaching business. I finally understood how to actually get found."
Janet Mauder
First-time Author
★★★★★
"My book shot to #1 bestseller in its category just hours after launch - and stayed there across the US, Canada and Germany."
Monica
Nonfiction Author
★★★★★
"#1 in Real Estate Sales, Real Estate Investing, and Buying & Selling Homes - all at once. This is the real thing."
Steve Gordon
Author & Advisor
Pricing

Simple plans, everything unlocked

Pick monthly or yearly - yearly gets you 2 months free.

BookSignal Standard

$97/month
  • 30 topic validations every month
  • Niche Finder & Book Ideas
  • Bestseller Spy - competitor keywords
  • BSR Calculator & AI Publishing Coach
  • Saved projects + PDF export
  • Private community & standard support
Get started
Who's behind BookSignal

Built by the team behind Designrr

BookSignal comes from Disruptware - the company behind Designrr, the eBook creation platform trusted by over 450,000 authors, coaches and businesses, including people at Amazon, LinkedIn and Facebook.

After a decade of helping authors create books, we kept watching the same heartbreak: good books published into niches nobody had measured. BookSignal exists so the next book you write is one Amazon's data already says people want.

450,000+authors use Designrr, our flagship product
Since 2016building publishing tools at Disruptware
Real datalive Amazon search & sales data on every verdict
FAQ

Common questions

What exactly is BookSignal?

A research toolkit for self-publishers. Before you write a book, BookSignal measures real demand, competition and profit potential for your topic using Amazon's own data - and gives you a clear GO-or-SKIP verdict plus the keywords, categories and pricing to publish with.

Where does the data come from?

Live Amazon marketplace data - real search volumes and real competitor sales signals - combined with a transparent scoring engine. The score is computed from the data, not made up by an AI, so the same inputs always give the same verdict.

Do I need publishing experience?

No. The guided tools (Niche Finder, AI Publishing Coach) assume you're starting from zero, and every report tells you what to do next in plain English. Experienced authors mostly live in Topic Explorer and Bestseller Spy.

Does BookSignal write the book for me?

BookSignal tells you what to publish and how to position it. For turning the plan into a finished book, it pairs naturally with Designrr - and the current offer includes writing-focused bonuses like the AI eBook Creator.

How much does it cost?

BookSignal Standard is $97/month and BookSignal Pro is $197/month, with discounted yearly plans (2 months free). But during the current launch window you can skip the subscription entirely - lifetime access for a one-time payment.

Is there a guarantee?

Yes - 30 days, money back, no questions asked. Try it on your own book ideas; if it's not for you, email support for a full refund.

How do I get help?

Standard support with real humans, an in-app AI coach that knows your reports, and a private community with direct access to the developers.

Publish books Amazon actually wants to sell

Stop guessing what to write. Validate your next book idea against Amazon's own data in about 60 seconds.

Get BookSignal