CoverCrush and BookBrush: Testing a Cover Versus Making One
CoverCrushing records reader votes and a separate AI panel score on covers you upload. This site’s cost calculator lists BookBrush with Canva as a DIY way to make a cover file. They are different jobs. This page does not rank them.
By The CoverCrush team · Editorial
People comparing CoverCrush and BookBrush are usually comparing two steps that sit next to each other in a launch, not two versions of the same product. CoverCrushing tests cover images: readers vote, and an AI panel scores the files you upload. The cover cost calculator on this site lists “DIY (Canva / BookBrush)” as one way to make a cover file. Making a file and testing a file are different jobs. This page stays inside what CoverCrushing actually publishes. It is not a review of BookBrush, and it does not rank the products.
What CoverCrushing does
CoverCrushing is a book-cover testing site operated by Taciturn Studios LLC. You upload cover images, readers vote on the public vote page, and an AI panel of five perspectives scores each cover on a 12-criterion rubric. Results compare the covers you submitted. The site is not part of Amazon, KDP, IngramSpark, or any book retailer. It does not send your images or vote data to those companies, and a test does not change your rank or your sales dashboard.
An A/B test compares two images. An A/B/C test compares three or four. Single Cover Feedback rates one cover. Voters do not need an account. They pick genres they read. A/B Compare asks which of two covers from the same test they prefer. The cover with more recorded votes leads. The AI panel output is labeled separately from those votes. The Crush Score is a 0–100 figure based on the leading cover’s share of the votes in that test. A wide margin scores higher than a near tie. The score is not a sales forecast.
The uploader accepts JPG, PNG, WebP, TIFF, and PDF files under 25 MB each. The image should be the cover itself, with the title and author name readable. You can test before the manuscript is finished. A blank title still changes the votes. CoverCrushing does not draw the cover for you.
Listed prices, in US dollars, charged through Stripe: Single Cover Feedback is $7. An A/B test is $12. An A/B/C test is $19. CrushPass is $19 per month and includes one A/B test credit per paid invoice, not unlimited tests. Pro Monthly is $29 per month and includes two A/B test credits plus unlimited single-cover feedback. New authors get one free A/B test during the 48 hours after signup, two covers, target 200 votes, with no card while that trial is open and unused. Those figures are the CoverCrushing catalog. They are not a price for any other company’s software.
How this site describes BookBrush
The only product description CoverCrushing publishes for BookBrush is on the cover cost calculator, where it is grouped with Canva under “DIY (Canva / BookBrush).” That row is a production option: a way an author might make a cover, not a vote panel. The calculator describes that DIY row as variable quality that depends on your design skills, with you doing the revisions, and as a fit for authors on a tight budget who have basic design sense. The same calculator lists a turnaround of 1–3 hours for that DIY row. Those words describe the calculator’s category. They are not a feature list, a review, or a measurement of BookBrush’s current product.
CoverCrushing does not claim to know BookBrush’s subscription price, template library, ad-mockup set, or terms, and this page will not invent them. BookBrush is a separate company. Nothing here says BookBrush cannot export a cover, and nothing here says a DIY file is lower quality than a hired designer in every case. The calculator’s own line is that quality depends on the person doing the design.
If you use BookBrush, Canva, a freelancer, or a custom illustrator, the handoff to CoverCrushing is the same: export a front-cover image with the title and author name readable, then upload that file. The vote does not score the tool that made the pixels. It scores the image voters saw.
When an author might use both
Use a DIY tool when you are producing the file yourself and you can judge type, contrast, and genre cues well enough to get to a readable cover. Use a designer or a contest when you want someone else to make that file. Use CoverCrushing when at least one finished image exists and you want reader votes, a separate AI panel read, or both.
A practical pair of steps looks like this. Make two directions in whatever tool you use, with the same title treatment rules you intend to publish. Upload those two files as an A/B test. Read the vote split and the panel separately, using how to choose a book cover with reader votes. If the files were too similar to produce a lead, change a real variable and test again. If you cannot get the file to a readable cover in a DIY tool, stop testing and commission the art. Another vote on an unreadable title will keep reporting the unreadable title.
CoverCrushing is not an integration partner pitch on this page. There is no shared login, no automatic import, and no claim that a file made in one tool is formatted for the other beyond the upload rules above.
What this page does not claim
This page does not say BookBrush is unsafe, low quality, or the wrong tool. It does not say CoverCrushing is a design app. It does not quote a BookBrush price, a user count, or a review score, because those figures are not in the CoverCrushing catalog. It does not say that a reader test will raise your sales. The test is a comparison of the images you uploaded.
If a test does not finish within 72 hours because of a problem on CoverCrushing’s side, the refund policy is a full refund or a free re-run. That policy is about the test. It is not a warranty on a cover you made somewhere else.
Start a cover test when the file is ready. The FAQ and the pricing page are the sources for the dollar amounts above.
Frequently asked questions
Q: Is CoverCrush the same kind of tool as BookBrush? A: No. CoverCrushing tests cover images with reader votes and a separate AI panel. This site’s cover cost calculator lists BookBrush with Canva as a DIY way to make a cover file. Making a file and testing a file are different jobs. This page does not rank the products.
Q: Can I upload a cover I made in a DIY tool? A: Yes, if the file is a front cover in JPG, PNG, WebP, TIFF, or PDF, under 25 MB, with the title and author name readable. The vote records the image, not the name of the tool that exported it.
Q: Does CoverCrushing publish a BookBrush price? A: No. CoverCrushing prices are its own: $7 for single-cover feedback, $12 for an A/B test, $19 for an A/B/C test, $19 per month for CrushPass, and $29 per month for Pro Monthly. BookBrush pricing is not part of that catalog.
Q: Will testing a DIY cover predict sales? A: No. The result says which uploaded cover drew more recorded votes, plus how the AI panel scored those images. It is not a sales forecast and it is not sent to Amazon or KDP.
Related reading
What CoverCrush is is the longer description of the vote page and the panel. Book cover A/B testing versus a designer or a contest covers the step before a test, when you still need someone to make the file.