Start free with 13+ daily author tools, or unlock unlimited checks, cover analysis, visual previews, and AI compliance tools.
Essential tools to validate your book every month.
For active indie authors publishing multiple paperback and Kindle books.
Full power for serious self-publishers, formatters, and agencies.
See exactly what is included in each plan
| Tool / Feature | Basic (Free) | Standard | Pro (All Access) |
|---|---|---|---|
| Monthly Check Quota | 2 checks / month | 15 checks / month | UNLIMITED |
| Interior PDF Trim & Margin Check | ✓ | ✓ | ✓ |
| Royalty & Print Cost Calculators | ✓ | ✓ | ✓ |
| Spine Width & Page Count Estimators | ✓ | ✓ | ✓ |
| KDP Error Code Decoder | ✓ | ✓ | ✓ |
| Description Formatter & ISBN Helper | ✓ | ✓ | ✓ |
| Cover PDF Checker (Bleed, Spine, Barcode) | — | ✓ | ✓ |
| Kindle / EPUB eBook Formatter | — | ✓ | ✓ |
| Interactive Kindle EPUB Reader Simulator | — | ✓ | ✓ |
| Keyword Linter & Category Checklist | — | ✓ | ✓ |
| Visual PDF Previewer with Bleed Guides | — | — | ✓ |
| AI Disclosure Compliance Scanner | — | — | ✓ |
| Amazon Ads Sanity Calculator | — | — | ✓ |
| KDP Category Finder | — | — | ✓ |
| Branded Inspection PDF Report Export | — | — | ✓ |
The Basic plan is free forever. Each month, registered authors can run their allocated interior PDF checks and use all 12+ publishing calculators (Royalty, Spine, Margins, Print Cost, ISBN, etc.) at no cost.
We process payments securely through Paystack. You can pay using any major Credit or Debit Card (Visa, Mastercard, Verve), Apple Pay, Bank Transfer, or Mobile Money.
Yes! There are no long-term contracts or commitments. You can cancel your subscription anytime directly from your dashboard or by emailing support.
The Visual Previewer renders your manuscript and cover pages alongside Amazon's exact physical trim, bleed, and safe margin boundaries, showing you any errors before Amazon reviews your file.