🔵 Demand-Driven Publishing Toolkit

Pay once. Publish forever.

Every tool is yours for life — Niche Finder, Book Ideas, Series Creator and the AI coach are all unlimited. You only meter the live-data validations.

The others charge $47–$119 every month — that's $564–$1,428 a year, forever. BookSignal is one payment.
Standard
For the new author validating their first few books.
$67
One-time · Lifetime
no subscription, ever
Get Standard
  • ✓30 topic validations / month
  • ✓Two-layer demand validation engine
  • ✓Unlimited Niche Finder
  • ✓Unlimited Book Ideas generator
  • ✓BSR Calculator (5 lookups/day)
  • ✓AI Publishing Coach
  • ✓PDF export · 10 saved projects
  • –Series Creator
★ Most Popular
Premium
For the serious self-publisher building a catalog.
$197
One-time · Lifetime
no subscription, ever
Get Premium
  • ✓100 topic validations / month
  • ✓Everything in Standard, plus —
  • ✓Series Creator — 3–5 outlined book series
  • ✓Unlimited AI Publishing Coach
  • ✓50 saved projects
  • ✓All future tools & updates included
  • ✓Priority support
Ultimate
For the prolific publisher & small agency.
$297
One-time · Lifetime
no subscription, ever
Get Ultimate
  • ✓250 validations / month (fair use)
  • ✓Everything in Premium, plus —
  • ✓Unlimited saved projects
  • ✓Series Creator — priority generation
  • ✓Early access to new tools
  • ✓Top-priority support

30-day money-back guarantee. One payment, lifetime access, free updates.
Validations use live Amazon data (DataForSEO + Rainforest); every other tool is unlimited fair-use.