Upload your cover — or describe a concept. See what genre it signals, whether it survives at thumbnail size, and exactly what to fix.
On the store, your cover is a tiny image in a crowded row. In that instant a reader decides one thing: is this a book for me? If the cover signals the wrong genre, or the title vanishes at thumbnail size, you’ve lost the sale before the blurb ever gets a chance.
Cover Signal Check reads your cover the way a browsing reader does. It tells you what genre it currently signals versus what your subgenre’s covers signal, runs the thumbnail test, reads the title, the imagery and the palette — and gives you designer-ready direction on what to fix. It diagnoses; it doesn’t redesign.
A finished cover, a draft, or just a written concept. Pick your genre and submit. Free.
A score and a five-point scorecard — with your cover shown full-size and at thumbnail.
2 credits for the genre-signal read, the thumbnail test, and designer-ready fix direction.
The read is always free. The full cover diagnosis is 2 credits.
| What you get | Free read | Full report |
|---|---|---|
| Overall cover score & verdict | ✓ | ✓ |
| Five-point scorecard — genre signal, thumbnail, title, focal point, differentiation | ✓ | ✓ |
| Your cover shown at full and thumbnail size | ✓ | ✓ |
| Genre-signal read — what it says vs. what it should | — | ✓ |
| The thumbnail test | — | ✓ |
| Element-by-element read — title, imagery, palette, author name | — | ✓ |
| Every issue flagged with a fix | — | ✓ |
| Designer-ready fix direction | — | ✓ |
| PDF export | — | ✓ |
Click through a full report to see exactly what Cover Signal Check returns — before you upload a thing.
See your score and your cover at thumbnail size before you pay.
Cheaper than one round of redesign — and far cheaper than a flat launch.
No art yet? Describe the concept and catch the problem before you commission.
Clear notes you can hand straight to your cover designer.
Stored privately, never public, never used to train any AI.
The read calibrates to your subgenre’s cover conventions.
Yes. Your score, scorecard, and the full-and-thumbnail view of your cover cost nothing. The genre-signal read and the fixes are 2 credits.
Yes. Describe the concept in words and Cover Signal Check reads the concept against your genre’s conventions.
No. It diagnoses and gives designer-ready direction — it never generates artwork. Use the direction to brief a designer.
Yes. It’s stored privately, served only to you, never placed on a public URL, and never used to train any AI.
JPG, PNG, or WEBP.
Absolutely — run it again and watch the score move.
Upload it — or describe it — and get your free read in seconds.
Get your free read